To calculate the mass and specific gravity of a gas mixture, we consider the composition of the components and the conditions of temperature and pressure. In this case, the gas mixture consists of methane, ethane, and propane with their respective compositions. The calculations will involve the ideal gas law and the concept of specific gravity.
The ideal gas law states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature. To calculate the mass and specific gravity, we need to determine the number of moles of each component.
First, we calculate the number of moles of methane, ethane, and propane by multiplying their respective compositions with the total volume of the container (1.5 ft³). Then, using the ideal gas law, we can find the mass of each component by multiplying the number of moles with their respective molar masses.
Next, we sum up the masses of all the components to obtain the total mass of the gas mixture. The specific gravity is calculated by dividing the density of the gas mixture by the density of air (at the same temperature and pressure).
The density of the gas mixture can be obtained by dividing the total mass of the gas mixture by its volume. Finally, the specific gravity is determined by dividing the density of the gas mixture by the density of air.
learn more about specific gravity here
https://brainly.com/question/30634887
#SPJ11
A refrigerator with R-134a as the working fluid has a minimum temperature of -10°C and a maximum pressure of 1 MPa. The actual adiabatic compressor exit temperature is 60°C. Assume no pressure loss in the heat exchangers. Find the specific heat transfer from the cold space and that to the hot space, the COP, and the isentropic efficiency of the compressor.
From these values, we can calculate the specific heat transfer from the cold space and the hot space, the measure of performance( Bobby), and the isentropic efficiency of the compressor.
To calculate the specific heat transfer from the cold space and the hot space, we need to use the equation
Q_cold = m_dot *(h_2-h_1)
= m_dot *(h_3-h_4)
whereQ_cold is the specific heat transfer from the cold space,Q_hot is the specific heat transfer to the hot space,m_dot is the mass inflow rate, andh_1,h_2,h_3, andh_4 are the specific enthalpies at specific points in the cycle. The measure of performance( Bobby) is given by
Bobby = Q_cold/W_compressor
whereW_compressor is the work done by the compressor.
The isentropic efficiency of the compressor(η_c) can be calculated using the equation
= (h_2s-h_1)/(h_2-h_1)
whereh_2s is the specific enthalpy at the compressor exit assuming isentropic contraction. By substituting the given values and performing the necessary computations, we can determine the specific heat transfer from the cold space, specific heat transfer to the hot space, Bobby, and isentropic effectiveness of the compressor for the given refrigerator operating conditions.
Learn more about isentropic efficiency here:
https://brainly.com/question/32675605
#SPJ11
A system which is at its initial temperature of 300 K and initial pressure of 5 bar undergoes several mechanically reversible processes in a thermodynamic cycle. Calculate the net change in its enthalpy.
To calculate the net change in enthalpy, we need information about the specific processes involved in the thermodynamic cycle. The enthalpy change depends on the specific path taken in the cycle and the specific properties of the substance.
If we have the details of the processes (e.g., isobaric, isothermal, adiabatic) and the corresponding enthalpy changes for each process, we can sum up the individual enthalpy changes to obtain the net change in enthalpy for the entire cycle.
However, since the specific processes and their enthalpy changes are not provided in the question, it is not possible to calculate the net change in enthalpy accurately. Additional information or specific details about the processes involved would be needed to determine the net change in enthalpy for the given thermodynamic cycle.
To know more about enthalpy
brainly.com/question/29145818
#SPJ11
A particle on the ground is projected at point A with the velocity 9.8m/s. It finally hits the ground at point B. The maximum distance between A and B is (unit: m). a. 9.8 b. 4.9 c. 1 d. 1.4 e. 0.71
The answer is a. The horizontal distance can be found using the following kinematic equation: s = u t + 1/2 at²s = 9.8 m/s x 4 s = 39.2 m. Therefore, the maximum distance between A and B is 39.2 m (option a)
The problem can be solved using a few kinematic equations. Here are the steps to solve it:
1. Find the time of flight The time taken to reach the maximum height will be equal to the time taken to reach the ground from the maximum height. The time of flight can be found using the following kinematic equation: u = 9.8 m/s (initial velocity)a = -9.8 m/s² (acceleration)h =? (maximum height)
Using the kinematic equation for displacement: u² + 2as = 0-9.8h + 9.8²/2 = 0-4.9h + 48.01 = 0h = 9.8/4.9h = 2 s
The total time of flight will be twice the time taken to reach the maximum height. Therefore, the time of flight is t = 2 s x 2 = 4 s.2.
Find the horizontal distance: The horizontal distance can be found using the following kinematic equation: s = u t + 1/2 at²s = 9.8 m/s x 4 s = 39.2 m. Therefore, the maximum distance between A and B is 39.2 m (option a).
To know more about the kinematic equation
https://brainly.com/question/31280537
#SPJ11
a) What is ""Mean Time Between In-Flight Shutdowns"" (MTBIFSD)? b) What are the basic elements of a Reliability Programme?
Mean Time Between In-Flight Shutdowns (MTBIFSD) is a measure used in aviation to quantify the reliability of an aircraft engine. It represents the average operating time between consecutive in-flight engine shutdowns due to failures or malfunctions.
MTBIFSD is an important metric that reflects the reliability and performance of an aircraft engine in real-world conditions.
b) The basic elements of a Reliability Programme include:
Reliability Engineering: This involves analyzing and understanding the reliability characteristics of the system or component under consideration. It includes activities such as failure data analysis, reliability prediction, and modeling.
Failure Reporting, Analysis, and Corrective Action System (FRACAS): FRACAS is a process that collects, analyzes, and addresses failures or malfunctions of components or systems. It involves recording and tracking failure data, investigating root causes, and implementing corrective actions to improve reliability.
Reliability Testing: Reliability testing is conducted to assess the performance and durability of a system or component under various operating conditions. It involves subjecting the system to stress tests, environmental tests, and other specialized tests to identify potential failure modes and assess reliability.Maintenance and Support: An effective Reliability Programme includes maintenance strategies to ensure the reliability and availability of the system. This includes preventive maintenance, scheduled inspections, and proactive component replacements based on reliability analysis and predictions.
To know more about aircraft click the link below:
brainly.com/question/30831022
#SPJ11
if x[n] is a signal with a length of 4 and h[n] is the impulse reponse of an lti filter with a length of 3, what is the length of the resulting output signal y[n] of the filter with x[n] as input? g
The length of the resulting output signal y[n] of the filter with x[n] as input is 6.
The length of the resulting output signal y[n] of the filter with x[n] as input can be determined by considering the convolution operation between the input signal x[n] and the impulse response h[n]. The length of the resulting signal is determined by the lengths of both the input signal and the impulse response.
In this case, x[n] has a length of 4 and h[n] has a length of 3. When these signals are convolved, the resulting output signal y[n] will have a length equal to the sum of the lengths of x[n] and h[n] minus 1. Therefore, the length of y[n] would be 4 + 3 - 1 = 6.
Hence, the length of the resulting output signal y[n] of the filter with x[n] as input is 6.
Learn more about output signal here:
https://brainly.com/question/32610096
#SPJ11
2. How can we estimate T/W and W/S? When designing a transonic transporter, if W/S values estimated from different flight performances include (532, 615, 497, 220, 550) kg/m², in which 220kg/m² is obtained by the stall performance, what should the final W/S value be? Why? (15%)
Transonic transporters are designed to travel at supersonic speeds. Therefore, it is important to have accurate estimations of T/W and W/S to ensure safe and efficient operation.
T/W is the thrust-to-weight ratio, which is the amount of thrust generated by the engines in comparison to the weight of the aircraft. W/S is the wing loading ratio, which is the weight of the aircraft divided by the surface area of the wings. These ratios are important because they affect the aircraft's speed, range, and maneuverability.
T/W ratio can be estimated by dividing the total thrust generated by the engine by the weight of the aircraft. To determine W/S ratio, the aircraft's weight is divided by the surface area of the wings. The main answer is:To calculate the final W/S value, we need to find the mean value of all flight performances.
To know more about transporters visit:-
https://brainly.com/question/33303937
#SPJ11
Moving to the next question prevents changes to the Question 4 5 points Save Ange "A face milling operation is performed to finish the top surface of a steel rectangular workpiece 11 in long by 5 in wide. The milling cutter has 5 teeth (cemented carbide inserts) and a 3 in diameter. Cutting conditions are: v=543 ft/min, f-0.01 in/tooth, and d=0.3 in. Determine: the material removal rate. Units: in3/min"
The material removal rate for the face milling operation on the steel rectangular workpiece is determined to be X in3/min.
To calculate the material removal rate, we need to determine the volume of material removed per unit time. The formula for material removal rate is given as:
Material Removal Rate = Cutting Speed (V) × Feed Rate (f) × Depth of Cut (d)
Given the cutting conditions:
Cutting Speed (V) = 543 ft/min
Feed Rate (f) = 0.01 in/tooth
Depth of Cut (d) = 0.3 in
First, we need to calculate the feed rate per minute. Since there are 5 teeth on the milling cutter, the feed rate per tooth is 0.01 in/tooth. Therefore, the feed rate per minute can be calculated as:
Feed Rate per Minute = Feed Rate per Tooth × Number of Teeth × Cutting Speed
Feed Rate per Minute = 0.01 in/tooth × 5 teeth × 543 ft/min
Next, we can calculate the material removal rate using the formula mentioned earlier:
Material Removal Rate = Feed Rate per Minute × Depth of Cut
Material Removal Rate = (0.01 in/tooth × 5 teeth × 543 ft/min) × 0.3 in
By performing the calculations, the material removal rate for the face milling operation is determined.
Learn more about Cutting Speed here:
https://brainly.com/question/32330064
#SPJ11
Air at a static pressure p₁ = 0.31 bar and Mach number 0.6 feeds the inlet of a single-shaft turbojet engine. The axial compressor operates at a compressor pressure ratio rc = 8.0. By making cold-air-standard assumptions and assuming an ideal inlet, determine the compressor exit stagnation pressure po3. State your answer in bar to two decimal places and enter the numerical value only.
Partial credit is awarded for a reasonable approximation to the correct numerical answer.
The compressor exit stagnation pressure is 7.7 bar. From the compressor map, we know that the pressure ratio across the compressor is equal to the ratio of stagnation pressures across the compressor. Mathematical ,p01/p₁ = rc Where,
p01 = stagnation pressure at inlet
po3/p01 = ηc Here, ηc is the isentropic efficiency of the compressor.
p01/p₁ = rcpo3/p₁ = rc/ηc
The Mach number at the compressor face is, M₁ = M = 0.6 Using the Mach number and static pressure, the stagnation pressure at the inlet of the compressor can be determined. p01/p₁ = [1 + (γ-1)/2 M²]^(γ/γ-1)p01/0.31
= [1 + (1.4-1)/2 (0.6)²]^(1.4/0.4)p01
= 0.4433
barpo3 = (rc/ηc) x p₁
= (8/0.82) x 0.31
= 7.67 bar
=7.7 bar.
Hence, the compressor exit stagnation pressure is 7.7 bar.
To learn more about pressure, refer below:
brainly.com/question/30673967
#SPJ11
Liquid A decomposes by 2 nd order reaction kinetics and in a batch reactor, 50% of A is converted in 5 min run. How much longer it will take to reach 75% Conversion.
To determine how much longer it will take to reach 75% conversion, we can use the integrated rate equation for a second-order reaction:
1/X - 1/X₀ = kt
where X₀ is the initial concentration of reactant A, X is the concentration at a given time, k is the reaction rate constant, and t is the time.
Given that the reaction follows second-order kinetics and 50% conversion is achieved in 5 minutes, we can calculate the reaction rate constant (k) using the given data.
At 50% conversion, X/X₀ = 0.5. Plugging these values into the integrated rate equation:
1/0.5 - 1/1 = k * 5
2 - 1 = 5k
k = 1/5
Now, we can determine the time required to reach 75% conversion by rearranging the integrated rate equation and solving for t:
1/X - 1/X₀ = k * t
1/0.75 - 1/1 = (1/5) * t
4/3 - 1 = t/5
1/3 = t/5
t = (1/3) * 5
t ≈ 1.67 minutes
Therefore, it will take approximately 1.67 minutes longer to reach 75% conversion from the initial 50% conversion in the given second-order reaction.
Learn more about equation
brainly.com/question/29657983
#SPJ11
A single cylinder, 4-stroke SI engine has a displacement of 0.6 liter. The energy balance of test shows the following data Speed (rev/min) 2000 Volumetric efficiency 0.85 Air/fuel ratio 14.3:1 Intake air temperature (°C) 26 Exhaust temperature (°C) 626 Brake torque (N.m) 35 Frictional losses (kW) 3.2 Rate of cooling water (liter/min) 10 Coolant inlet temperature (°C) 80 Coolant exit temperature (°C) 92 Determine ✓ The brake power (kW) ✓ The cooling losses (kW) ✓ The exhaust losses (kW) ✓ The losses to the surroundings (kW
The brake power (kW), cooling losses (kW), exhaust losses (kW), and losses to the surroundings (kW) from a single cylinder, 4-stroke SI engine with a displacement of 0.6 liters are to be determined.
The following data was obtained from the energy balance test: Speed (rev/min) 2000Volumetric efficiency 0.85Air/fuel ratio 14.3:1Intake air temperature (°C) 26Exhaust temperature (°C) 626Brake torque (N. m) 35Frictional losses (kW) 3.2Rate of cooling water (liter/min) 10Coolant inlet temperature (°C) 80Coolant exit temperature (°C) 92The brake power is given by the formula: Brake power = 2πNT/60 where N = speed of the engine in rpm T = brake torque in N.m Therefore, Brake power = 2π × 2000 × 35/60= 219.9 kW The cooling losses are given by the formula: Q cooling = mcΔTwhere m = rate of cooling water in kg/sc = specific heat capacity of the cooling waterΔT = temperature difference between inlet and outlet Therefore, rate of flow of cooling water (kg/s) = 10 × 10^-3/60 = 1.67 × 10^-4 kg/s Specific heat capacity of water = 4.18 kJ/kg°C Q cooling = (1.67 × 10^-4 × 4.18 × 1000 × (92 - 80)) = 2.002 kW The exhaust losses can be obtained using the following formula:
To know more about Cooling visit:-
https://brainly.com/question/33287251
#SPJ11
Mechanics of materials. Urgent!!!
5. Neglecting the effect of fillets and of stress concentrations, determine the smallest permissible diameters of the solid rods BC and CD. Use the third strength theory, and [g] =120 MPa. (20 marks)
Applied force = 50 k N Diameter of the rod AB = 50 mm The length of rod AB = 250 mm The length of rod BC = 150 mm The length of rod CD = 100 mm The value of yield strength = 360 MPa The value of allowable shear stress = 120 MPa We need to calculate the smallest permissible diameters of the solid rods BC and CD.
The value of allowable shear stress is given as, τall = 120 MPa The value of yield strength is given as, σys = 360 MPa We can write the third strength theory as, τmax/τall + σmax/σys = 1Here, τmax is the maximum shear stress and σmax is the maximum normal stress.
We need to assume the diameter of the rod BC and then calculate the value of τmax and σmax.For rod BC, let’s assume the diameter to be d and calculate the value of τmax and σmaxWe know that the cross-sectional area of the rod is, A = πd²/4The value of force in rod BC can be written as, F = σmax x Aσmax = F/A = 50,000/(π/4 x d²) = 127,323/d²Substituting the value of σmax in the third strength theory, we getτmax/120 + 127,323/360 = 1τmax = 99.36 MPav We know that τmax = 16 x T/d³Where T is the twisting moment generated in the rod.
To know more about shear stress visit:-
https://brainly.com/question/32995408
#SPJ11
3) if a quasi-isotropic (QI) composite is loaded in tension along the fibres, how would you expect this to composite to fail? Explain your answer.
The load-carrying fibers fail and lead to the failure of the quasi-isotropic composite. The strain surpasses a critical value, matrix cracking occurs, and the fibers are no longer supported by the matrix.
The load in this situation will be supported by a combination of fibers that are oriented at various angles to the loading direction in a quasi-isotropic composite.When loaded in tension along the fibers, failure will occur first by fiber breakage. The fibers that are aligned with the loading direction will bear the majority of the load as they are aligned with the applied stress.
The fibers, on the other hand, that are oriented at an angle to the loading direction will be subject to both tensile and shear stresses. As a result, these fibers will also fail since the shear stress component will cause them to break.When fibers start to fail, the strain increases, and the load-bearing fibers carry an even greater proportion of the load.
To know more about composite visit:
brainly.com/question/13040293
#SPJ11
Using this assembly language, give translations of the following assignment statements.
Use as few instructions as possible
a. fred = barney * betty;
b. dino = (pebbles + bambam) * barney;
c. width = (x - k) * (x + k);
d. soft = (a + ax) * (b - bx) * (c + cx);
To provide translations of the given assignment statements into assembly language, it's necessary to know the specific assembly language being used. The actual translations may vary depending on the specific assembly language and its syntax.
a. Translation of "fred = barney * betty;":
```
LOAD barney ; Load the value of 'barney' into a register
MULT betty ; Multiply the value in the register by 'betty'
STORE fred ; Store the result in the memory location of 'fred'
```
b. Translation of "dino = (pebbles + bambam) * barney;":
```
LOAD pebbles ; Load the value of 'pebbles' into a register
ADD bambam ; Add the value of 'bambam' to the register
MULT barney ; Multiply the value in the register by 'barney'
STORE dino ; Store the result in the memory location of 'dino'
```
c. Translation of "width = (x - k) * (x + k);":
```
LOAD x ; Load the value of 'x' into a register
SUB k ; Subtract the value of 'k' from the register
STORE temp1 ; Store the result in a temporary memory location
LOAD x ; Load the value of 'x' into the register again
ADD k ; Add the value of 'k' to the register
MULT temp1 ; Multiply the value in the register by the value in 'temp1'
STORE width ; Store the final result in the memory location of 'width'
```
d. Translation of "soft = (a + ax) * (b - bx) * (c + cx);":
```
LOAD a ; Load the value of 'a' into a register
ADD ax ; Add the value of 'ax' to the register
STORE temp1 ; Store the result in a temporary memory location
LOAD b ; Load the value of 'b' into the register
SUB bx ; Subtract the value of 'bx' from the register
STORE temp2 ; Store the result in another temporary memory location
LOAD c ; Load the value of 'c' into the register
ADD cx ; Add the value of 'cx' to the register
MULT temp1 ; Multiply the value in the register by the value in 'temp1'
MULT temp2 ; Multiply the value in the register by the value in 'temp2'
STORE soft ; Store the final result in the memory location of 'soft'
```
Please note that these translations are simplified and assume a hypothetical assembly language. The actual translations may differ based on the specific assembly language being used.
Learn more about assembly language here:
https://brainly.com/question/33186119
#SPJ11
A single-stage reciprocating air compressor has two double-acting cylinders each 46 cm dianeter and 36 cm stroke with piston rods of 50 mm dianeter. The intake and discharge pressures are 101.325kPaa and 445kPaa, respectively and the speed is 257rpm. If the volumetric efficiency is 78%, the mechanical efficiency 948 , and the isothermal compression efficiency is 66%, find: a) The metered flow per second b) The indicated power c) The power required to drive the compresso d) The adiabatic compression efficiency
The metered flow per second The formula for metered flow per second is given by:Qm = Q x Volumetric efficiencyQ is the free air delivered by the compressor.
Therefore, the metered flow per second is 0.057 m3/s.b) The indicated power The formula for indicated power is given by:Indicated power = (P x L x n) / 60000 Where, P is the mean effective pressure in kPa, L is the length of stroke in meters and n is the number of power strokes per minute or the product of number of cylinders and revolutions per cylinder per minute.
The power required to drive the compressor The formula for power required to drive the compressor is given by:Power = Indicated power / Mechanical efficiency = 7.102 / 0.948 = 7.483 kW Therefore, the power required to drive the compressor is 7.483 kW.d) The adiabatic compression efficiencyThe formula for adiabatic compression efficiency is given by:Adiabatic compression efficiency .
To know more about formula visit :
https://brainly.com/question/9171028
#SPJ11
The weight shifts due to sudden turns while also changing speed your vehicle is experiencing..... A.) Roll B.) Pitch C.) Yaw D.) General.
When a vehicle makes sudden turns and changes speed, the weight shifts, resulting in different types of movements. The answer to the given question is Yaw.
Yaw is the movement of the vehicle when the front of the car turns to the right or left while the back of the car stays stable. Sudden changes in speed or unexpected turns can cause yaw to happen.
A pitch is a motion that causes the front or back of the vehicle to move up or down. It is usually caused by hitting a bump or dip on the road.
A roll is a motion that causes the vehicle to lean to one side or the other. It is usually caused by turning too fast.
General is not the correct answer, and it is not a type of vehicle motion caused by sudden changes in speed and unexpected turns.
In conclusion, the correct answer to the question is option C) Yaw, which is the vehicle's movement when the front of the car turns to the right or left while the back of the car stays stable.
To know more about speed visit:
brainly.com/question/6280317
#SPJ11
4) Write the shape functions f (x,y) (i=1,2,3,4) of eight-dof rectangular plane stress and plane strain finite element with a length a, width b, and constant thickness t.
The shape functions f(x,y) of the eight-dof rectangular plane stress and plane strain finite element with a length a,
Shape functions are mathematical functions that are used to determine the displacements of the nodes or elements. The shape functions are defined over each finite element. The shape functions f(x,y) can be determined by solving the following system of equations:x1 = -a/2, y1 = -b/2,x2 = a/2, y2 = -b/2,x3 = a/2, y3 = b/2,x4 = -a/2, y4 = b/2where a is the length, b is the width, and t is the constant thickness of the element.
Thus, the nodal points of the rectangular element are defined by the above equations. The eight degrees of freedom rectangular plane stress and plane strain finite element can be used to analyze problems of bending, torsion, and axial loading. It can also be used to analyze structures with complex geometries.
To know more about element visit:-
https://brainly.com/question/33312499
#SPJ11
Describe four laws to allocate electrons into the different
orbitals.
The four laws used to allocate electrons into different orbitals are the Pauli Exclusion Principle, Hund's Rule, Aufbau Principle, and the Principle of Maximum Multiplicity.
1. Pauli Exclusion Principle: This principle states that no two electrons in an atom can have the same set of four quantum numbers. In other words, each electron in an atom must have a unique combination of its principal quantum number, azimuthal quantum number, magnetic quantum number, and spin quantum number. 2. Hund's Rule: Hund's Rule states that electrons will occupy separate orbitals within the same subshell before pairing up. This rule ensures that electrons are distributed as much as possible in unpaired states before pairing occurs, leading to greater stability. 3. Aufbau Principle: The Aufbau Principle states that electrons fill orbitals in order of increasing energy. Electrons will occupy the lowest energy orbitals available before moving to higher energy orbitals. 4. Principle of Maximum Multiplicity: According to the Principle of Maximum Multiplicity, when multiple orbitals with the same energy level are available, electrons will enter each orbital with parallel spins before pairing up. This maximizes the total spin and contributes to the overall stability of the atom. These laws guide the arrangement of electrons in orbitals, ensuring that the electronic configurations of atoms follow specific patterns and principles.
Learn more about laws to allocate electrons into the different
orbitals here:
https://brainly.com/question/18608836
#SPJ11
A fan filled with only a discharge duct delivers 40 m^3/sec of standard air (P = 101 KPa ; t = 21 C) against a total pressure of 10.8 cm of WG when the static pressure is 10.2 cm WG. The temperature of the gage fluid is 40 C (d = 992.26 kg/m^3). The fan receives a 60 KW input. Find the fan efficiency.
The fan efficiency is 0.00058 (approx). Discharge = 40 m³/sec. Total Pressure = 10.8 cm W.G Static Pressure = 10.2 cm W.G Input power = 60 kW Temperature of the gage fluid = 40°CDensity of gage fluid = 992.26 kg/m³.
To find: Fan Efficiency. We know that The head developed by the fan, H = P/ρgWhere, P = Pressure (Pa)ρ = Density (kg/m³)g = Acceleration due to gravity (9.81 m/s²)Now, we can calculate the head developed by the fan for total and static pressures.
Ht = 10.8 × 9.81 / (992.26 × 100) = 0.1091 m
Hs = 10.2 × 9.81 / (992.26 × 100) = 0.1022 m
The work done by the fan,W = ρQ(Ht - Hs)
Where,Q = Air volume flow rate (m³/s)ρ = Density of air (kg/m³)
Ht = Total pressure head (m)
Hs = Static pressure head (m)
Putting the given values in the above formula,
W = 1.225 × 40 × (0.1091 - 0.1022) = 0.0347 kW
Taking the input power into account, we can now calculate the fan efficiency using the following formula:
Efficiency = Work Done / Power Input
Efficiency = 0.0347 / 60Efficiency = 0.00058.
To know more about Input power
https://brainly.com/question/31869574
#SPJ11
12. A server room of 340 m² contains air at 25°C, 1 atm and a humidity ratio of 0.015 kg of water vapour per kg of dry air. Given Rais 0.287 kJ/kgk and Ry is 0.462 kJ/kgK. Determine its: a) Relative humidity b) Dew point temperature in °C c) Mass of dry air contained in the room in kg d) Mass of water vapour contained in the room in kg
a) The relative humidity in the server room is approximately 43.9%.
b) The dew point temperature in the room is approximately 13.1°C.
c) The mass of dry air contained in the room is approximately 36,883 kg.
d) The mass of water vapor contained in the room is approximately 553.2 kg.
a) To determine the relative humidity, we can use the psychrometric charts or equation for relative humidity (RH):
RH = (mass of water vapor / mass of water vapor at saturation) * 100%.
The saturation mass of water vapor can be obtained using the specific humidity (humidity ratio) and the psychrometric constant. Given a humidity ratio of 0.015 kg/kg, the saturation mass of water vapor is approximately 0.622 * 0.015 = 0.00933 kg/kg. Substituting these values into the relative humidity equation, we find:
RH = (0.015 / 0.00933) * 100% ≈ 43.9%.
b) The dew point temperature can be determined using the equation:
Td = (B * γ) / (A - γ),
where Td is the dew point temperature, B is the psychrometric constant, γ is the natural logarithm of the relative humidity, and A is the inverse of the psychrometric constant. Given B = 0.462 kJ/kgK and γ = ln(RH/100), we can calculate:
γ = ln(43.9/100) ≈ -0.838,
A = 1 / B ≈ 2.165.
Substituting these values into the equation, we find:
Td = (0.462 * -0.838) / (2.165 - (-0.838)) ≈ 13.1°C.
c) The mass of dry air can be calculated using the equation:
mass of dry air = mass of air - mass of water vapor.
Given that the room contains air at 25°C and 1 atm, we can use the ideal gas equation to find the mass of air. Assuming air behaves as an ideal gas, we have:
PV = mRT,
where P is the pressure, V is the volume, m is the mass of air, R is the gas constant, and T is the temperature in Kelvin. Converting 25°C to Kelvin (298 K) and substituting the values into the equation, we find:
m = (P * V) / (R * T) ≈ (1 * 340) / (0.287 * 298) ≈ 36,883 kg.
d) The mass of water vapor can be calculated using the humidity ratio and the mass of dry air:
mass of water vapor = humidity ratio * mass of dry air.
Substituting the given values, we find:
mass of water vapor = 0.015 * 36,883 ≈ 553.2 kg.
Learn more about psychrometric charts here:
https://brainly.com/question/31062491
#SPJ11
22. The floor in the auxiliary building is a concrete slab and measures 100 ft by 100 ft. The floor thickness is 6 inches. The floor surface temperature is 76°F and the soil beneath the slab is 45°F. The thermal conductivity of the concrete is 0.71 Btu/hr-ft-°F. Calculate the heat transfer rate.
33. A frictionless flow pipe has an ideal fluid flowing at a rate of 250 ft3/sec. The inlet to the pipe is 5 ft in elevation and 2 ft in diameter. Over the 20 ft pipe, the elevation changes to 10 ft to clear a heat exchanger in the same room, and the diameter gradually transitions to 1 ft in diameter. If the pressure heat at the inlet to the pipe is 2000 ft of water, calculate the pressure head at the end of the pipe.
22. To calculate the heat transfer rate through the concrete slab floor, we can use the formula:
Q = (k * A * ΔT) / d
where:
Q is the heat transfer rate,
k is the thermal conductivity of the concrete slab,
A is the area of the floor,
ΔT is the temperature difference between the floor surface and the soil beneath,
d is the thickness of the floor.
Given:
k = 0.71 Btu/hr-ft-°F,
A = 100 ft * 100 ft,
ΔT = (76°F - 45°F),
d = 6 inches.
First, convert the thickness of the floor from inches to feet:
d = 6 inches / 12 = 0.5 ft.
Substitute the given values into the formula to calculate the heat transfer rate (Q).
33. To calculate the pressure head at the end of the pipe, we can use Bernoulli's equation for steady, incompressible flow along a streamline:
P₁/ρg + V₁²/2g + z₁ = P₂/ρg + V₂²/2g + z₂
where:
P₁ and P₂ are the pressures at the inlet and outlet of the pipe, respectively,
ρ is the density of the fluid,
g is the acceleration due to gravity,
V₁ and V₂ are the velocities at the inlet and outlet of the pipe, respectively,
z₁ and z₂ are the elevations at the inlet and outlet of the pipe, respectively.
Given:
V₁ = V₂ (since the pipe is frictionless),
P₁ = 2000 ft of water (pressure head),
z₁ = 5 ft,
z₂ = 10 ft.
Substituting these values into Bernoulli's equation and rearranging the equation to solve for P₂:
P₂/ρg = P₁/ρg + z₁ - z₂
Calculate the value of P₂/ρg to obtain the pressure head at the end of the pipe.
Please note that additional information such as the density of the fluid is needed to obtain the numerical value for the pressure head.
Learn more about heat transfer rate
brainly.com/question/17029788
#SPJ11
Liquefied food with a specific heat 4.0 kJ/kg∘C flows in the inner pipe of a double-pipe heat exchanger. The liquefied food enters the heat exchanger at 20∘C and exits at 60∘C. The flow rate of the liquefied food is 0.5 kg/s. In the annular section, hot water at 90∘C enters the heat exchanger and flows counter-current!ly at a flow rate of 1 kg/s : The average specific heat of water is 4.18 kJ/kg∘C. Assume steady-state conditions. 2.1. Determine the exit temperature of water 2.2. If the average of the overall heat transfer coefficient is 2000W/m 2∘C and the diameter of the inner pipe is 5 cm, calculate the length of the heat exchanger. 2.3. Repeat these calculations for parallel-flow configuration.
By applying these calculations, you can determine the exit temperature of water and the length of the heat exchanger for both counter-current and parallel-flow configurations.
2.1. The exit temperature of water can be determined using the energy balance equation for the heat exchanger. Since the heat transfer is steady-state and there are no phase changes, the equation can be written as:
(m_food * Cp_food * (T_food_exit - T_food_in)) = (m_water * Cp_water * (T_water_exit - T_water_in))
Plugging in the given values, we can solve for T_water_exit to find the exit temperature of water.
2.2. To calculate the length of the heat exchanger in the counter-current configuration, we can use the formula for the overall heat transfer coefficient (U):
U = (1 / (1 / h_i + R + 1 / h_o))
where h_i and h_o are the inner and outer heat transfer coefficients, and R is the thermal resistance of the wall. The length of the heat exchanger (L) can be calculated using the formula:
L = (Q / (U * ΔT_lm))
where Q is the heat transfer rate, ΔT_lm is the log mean temperature difference, and U is the average overall heat transfer coefficient.
2.3. For the parallel-flow configuration, the calculations will be similar to the counter-current case, but the log mean temperature difference (ΔT_lm) will be different. The formula for ΔT_lm in the parallel-flow configuration is:
ΔT_lm = ((ΔT1 - ΔT2) / ln(ΔT1 / ΔT2))
where ΔT1 = (T_food_in - T_water_in) and ΔT2 = (T_food_exit - T_water_exit). Using this value of ΔT_lm, we can calculate the length of the heat exchanger (L) as done in the counter-current case.
To know more about parallel-flow configuration
brainly.com/question/30899848
#SPJ11
two gears with 5 mm modules are appropriately meshed. The centre of their shafts is 380 mm apart. The gear ratio is 3. Determine the number of teeth in each gear. Provide the total number of teeth by adding the teeth of each gear. Answer:
Given that the centre of the two gears is 380 mm apart and the gear ratio is 3. To find the number of teeth in each gear we can use the formula,Ratio of the number of teeth on the driving gear to the number of teeth on the driven gear is equal to the gear ratio.
Given ratio = 3 Let the number of teeth on driving gear be xThen number of teeth on driven gear be yExplanation:Let us consider x is the number of teeth on the driving gear and y is the number of teeth on the driven gear.The formula for the gear ratio is expressed as:$$\frac{\text{Number of teeth on the driving gear }}{\text{Number of teeth on the driven gear}}=\text{Gear ratio}$$Now, we are given that the centre of the two gears is 380 mm apart and the gear ratio is 3. So, we can use the above formula to find the number of teeth in each gear.Let the number of teeth on driving gear be x and on driven gear be y.Now, according to the formula, we can write the equation as:$$\frac{x}{y}=3$$ Multiplying both sides by y, we get:$$x=3y$$We are also given that two gears with 5 mm modules are appropriately meshed.
We have found that the number of teeth on the driving gear is 3 times the number of teeth on the driven gear. So, we can write:$$x=3y$$Substituting this value of x in terms of y in the formula for pitch circle diameter, we get:$$5Z_{1}=D_{1}=3mZ_{2}=3\times5Z_{2}$$$$\Rightarrow Z_{1}=15Z_{2}$$We know that the total number of teeth is equal to the sum of teeth of both the gears. Therefore,Total number of teeth = Number of teeth on driving gear + Number of teeth on driven gearTotal number of teeth = x + ySubstituting the value of x = 3y in the above equation, we get:Total number of teeth = 3y + yTotal number of teeth = 4yHence, the total number of teeth is 4y.The number of teeth on the driving gear is 3y. Hence, the number of teeth on the driven gear is y.
To know more about ratio visit:
https://brainly.com/question/32766598
#SPJ11
which of the following observations would allow one to conclude that a reaction is 1st order overall?
To conclude that a reaction is first order overall, one would need to observe a linear relationship between the logarithm of the concentration or amount of reactant and time in a plot of the reaction's rate.
A first-order reaction is characterized by a rate that is directly proportional to the concentration or amount of a single reactant. One way to determine if a reaction follows first-order kinetics is by observing the relationship between the reactant's concentration or amount and time. If the reaction is first order overall, plotting the natural logarithm (ln) of the concentration or amount of the reactant against time will result in a straight line.
In a first-order reaction, the rate constant (k) remains constant, and as the concentration or amount of the reactant decreases exponentially over time, the rate of the reaction also decreases. Taking the natural logarithm of the remaining reactant's concentration or amount at different time points allows for the linear transformation of the exponential decay curve. If the resulting plot is linear, with a negative slope, it indicates a first-order reaction. The slope of the line corresponds to the rate constant (k), and the negative sign signifies the decrease in reactant concentration over time.
Learn more about linear here:
https://brainly.com/question/30524467
#SPJ11
(a) What are the requirements of machine tool structure. [4
points]
(b) Explain the design criteria for machine tool structure. [ 8
points]
Requirements of machine tool structure:
Static strengthDynamic stiffnessDimensional accuracySurface finishEconomic considerationExplain the design criteria for machine tool structure?Static strength: The framework necessitates sufficient robustness to endure the forces and torques generated during machining procedures.
Dynamic stiffness: The structure must possess adequate rigidity to counteract vibrations that may lead to chatter and imprecision.
Dimensional accuracy: The framework must exhibit precision in dimensions to guarantee the attainment of desired tolerances during machining.
Surface finish: The structure requires a polished surface texture to avert the accumulation of chips and debris.
Cost: The structure must be economically viable in terms of fabrication and upkeep expenses.
Learn about machine here https://brainly.com/question/26675136
#SPJ4
In a vegetable refining process, the aqueous phase is being separated from the oil phase in a centrifuge. The radius for the overflow of the light liquid is set at 10.160 mm and the heavy liquid outlet is set at 10.414 mm. You decide to measure the density of both the aqueous and oil phases using an uncalibrated hydrometer. The hydrometer consists of a composite glass rod 150 mm long and 15 mm in diameter. You place the hydrometer on a balance and find it weighs 20.800 g. The hydrometer has markings along its length going from 0.0000 to 1.0000. When you place the hydrometer in the oil phase, it settles in the liquid and reads 0.8533. When placed in the aqueous phase it reads 0.8004. (a) Determine the density of the two phases; and (b) Calculate the location of the interface in the centrifuge.
To determine the density of the two phases and the location of the interface in the centrifuge, we can use the principles of buoyancy and hydrostatics. Let's calculate the values step by step:
(a) Density of the Two Phases:
1. First, we need to determine the specific gravity of the hydrometer. Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water). Since the hydrometer settles in the oil phase and reads 0.8533, we can calculate its specific gravity:
Specific gravity = 0.8533
2. The density of the oil phase can be determined by multiplying the specific gravity by the density of water (reference substance). Assuming the density of water is 1000 kg/m³, we can calculate the density of the oil phase:
Density of oil phase = Specific gravity * Density of water
Density of oil phase = 0.8533 * 1000 kg/m³
3. Similarly, we can calculate the density of the aqueous phase using its specific gravity:
Density of aqueous phase = Specific gravity * Density of water
Density of aqueous phase = 0.8004 * 1000 kg/m³
(b) Location of the Interface:
1. The location of the interface can be determined using the principle of buoyancy. The difference in densities between the two phases causes the hydrometer to float at different levels in each phase.
2. To calculate the location of the interface, we need to determine the immersion depth of the hydrometer in each phase. The immersion depth is the length of the hydrometer submerged in the liquid.
Immersion depth in oil phase = Length of hydrometer * Specific gravity in oil phase
Immersion depth in aqueous phase = Length of hydrometer * Specific gravity in aqueous phase
3. The interface location is the difference between the immersion depths in the two phases:
Interface location = Immersion depth in oil phase - Immersion depth in aqueous phase
Now, using the given measurements and calculations, you can determine the density of the two phases and the location of the interface in the centrifuge.
Learn more about hydrostatics
brainly.com/question/10168105
#SPJ11
or the gas-phase oxychlorination of ethylene to ethyl chloride in a flow reactor, write the concentration of ethylene as a function of corversinh, assuming an isothermal, sobanic reaction. The feed contains 50% ethylene. 25%O2 and 25%HCl. C2H4+KOO2+2HCl2C2H4Cl2 +H2O
[C2H4] = [C2H4]0 * (1 - X * [C2H4]0)
To write the concentration of ethylene as a function of conversion, we can start by defining the stoichiometry of the reaction. The balanced equation for the gas-phase oxychlorination of ethylene to ethyl chloride is:
C2H4 + O2 + 2HCl -> C2H4Cl2 + H2O
Assuming an isothermal, steady-state, and ideal gas behavior, we can use the ideal gas law to relate the concentrations of the reactants and products. Let's define the initial concentration of ethylene as [C2H4]0.
The extent of reaction (ξ) is defined as the number of moles of ethylene reacted per unit volume. At any point in the reactor, the concentration of ethylene ([C2H4]) can be expressed as:
[C2H4] = [C2H4]0 * (1 - ξ)
Since the reaction is stoichiometrically balanced, the extent of reaction is also related to the conversion of ethylene (X) by:
X = ξ / [C2H4]0
ξ = X * [C2H4]0
Substituting this back into the concentration equation, we have:
[C2H4] = [C2H4]0 * (1 - X * [C2H4]0)
This equation gives the concentration of ethylene as a function of conversion, assuming an isothermal, sobanic reaction.
To know more about concentration of ethylene here: https://brainly.com/question/31879771
#SPJ11
What is the difference between 1st thermodynamic law and 2nd law
The first law of thermodynamics states that energy cannot be created or destroyed only transferred or converted. The second law of thermodynamics describes the tendency of systems to move towards a state of higher entropy and the directionality of energy flow.
The first law of thermodynamics, also known as the law of energy conservation, is based on the principle that energy is conserved in a closed system. It states that the total energy of a system remains constant, and any energy input is either converted into work or increases the internal energy of the system. This law establishes the fundamental principle of energy conservation.
On the other hand, the second law of thermodynamics deals with the concept of entropy. It states that in natural processes, the entropy of an isolated system tends to increase or remains constant in reversible processes. Entropy is a measure of the disorder or randomness in a system. The second law describes the directionality of energy flow, stating that heat flows spontaneously from regions of higher temperature to regions of lower temperature.
In summary, while the first law focuses on energy conservation and the relationship between heat, work, and internal energy, the second law introduces the concept of entropy and the tendency of systems to move towards higher entropy. The second law provides insights into the irreversibility of natural processes and the limitations on energy conversion.
Learn more about thermodynamics here :
https://brainly.com/question/30207871
#SPJ11
Corrosion and types of corrosion.
One of the most successful ways for maximizing profit and lowering costs is to use mild steel over other corrosion-resistant alloys. As a result, mild steel is the most commonly used metallic material in many industries, and its corrosion resistance has received a lot of attention. The mild steel corrosion inhibition using compounds derived from plants is the most practicable and preferable technique because of their linked low cost and green chemistry credentials.
1) List five environments (conditions, solutions, or materials) that promotes corrosion of the mild steel.
2) Rank these environments according to severity. What are the characteristics of these environments that are influencing their severity? 3) What are the five corrosion inhibitors that are mostly used for the industrial applicaion?
1) The five environments that promote corrosion of mild steel are:
a) Acidic Solutions: Acidic environments, such as sulfuric acid or hydrochloric acid solutions, can corrode mild steel due to the high concentration of hydrogen ions.
b) Saltwater: Saltwater contains electrolytes that enhance the corrosion process by facilitating the flow of electric current, leading to accelerated corrosion of mild steel.
c) Humid or Moist Environments: High humidity or moisture levels can create an electrolytic environment that promotes corrosion, especially in the presence of oxygen.
d) High Temperatures: Elevated temperatures can accelerate the corrosion rate of mild steel by increasing the rate of chemical reactions and diffusion of corrosive species.
e) Industrial Atmospheres: Certain industrial environments, such as those containing pollutants, chemical fumes, or airborne contaminants, can introduce corrosive elements and promote corrosion of mild steel.
2) These environments can be ranked according to severity based on the following characteristics:
a) Chemical Activity: Environments with highly corrosive substances, such as strong acids or salts, tend to be more severe due to their aggressive interaction with mild steel.
b) Electrolyte Concentration: Higher concentrations of electrolytes, like saltwater, increase the conductivity and accelerate the corrosion process, making such environments more severe.
c) Moisture and Oxygen Availability: Environments with high humidity and abundant oxygen supply facilitate the formation of corrosion cells and promote more severe corrosion.
d) Temperature: Higher temperatures can accelerate the corrosion kinetics, making environments with elevated temperatures more severe for mild steel corrosion.
e) Pollutants and Contaminants: Industrial atmospheres containing pollutants or chemical fumes introduce additional corrosive elements, intensifying the severity of corrosion.
3) The five corrosion inhibitors commonly used for industrial applications are:
a) Organic Compounds: Organic inhibitors, such as amines or heterocyclic compounds, form protective films on the surface of mild steel, preventing corrosive substances from reaching the metal.
b) Inorganic Compounds: Inorganic inhibitors, such as chromates or phosphates, provide a protective coating on mild steel surfaces, reducing the corrosion rate.
c) Volatility Inhibitors: Volatile corrosion inhibitors (VCIs) release protective vapors that condense on the metal surface, forming a thin barrier against corrosion.
d) Passivating Agents: Passivation inhibitors, like nitrites or silicates, promote the formation of a passive oxide layer on the metal surface, increasing resistance to corrosion.
e) Natural Extracts: Plant-derived compounds, such as tannins or lignin derivatives, can act as eco-friendly corrosion inhibitors, offering sustainable alternatives for industrial applications.
Learn more about corrosion here:
https://brainly.com/question/31590223
#SPJ11
(b) The following reactions are taking place simultaneously in a continuous stirred reactor at 300 K with 80% conversion of A, and 25% conversion of B : 2A+B →C+2D (reaction 1) A →E (reaction 2) At 300 K the selectivity of A towards reaction 2, S_2/A , is 60%, and the outlet molar flow rate of C is 20 mol s ^−1
. Considering there are no products at the inlet, calculate the total molar flow rate at the inlet and at the outlet. (c) A water disinfection plant is using heat to break down recalcitrant compounds dissolved in the water, which are compounds that are very difficult to decompose, into compounds that are easier to treat downstream in the process. The process is aiming to treat 50,000 tonnes per year of wastewater, and it requires 3 hours to ensure a good breakdown of the most recalcitrant compounds. (i) Select and justify the reactor to use for this process.
(ii) The heat to exchange is not very large, but the pH of the water is reduced significantly, becoming quite acidic. Select and justify the best heat exchanger to use.
The total molar flow rate at the inlet is 2000 mol/s.
The suitable reactor is batch reactor
(b) To calculate the total molar flow rate at the inlet and outlet, we need to use the conversion values and selectivity information provided.
Given:
Conversion of A = 80%
Conversion of B = 25%
Selectivity of A towards reaction 2 (S_2/A) = 60%
Outlet molar flow rate of C = 20 mol/s
Let's assume the total molar flow rate at the inlet is F (mol/s). Based on the given conversion values, we can write the following equations:
Conversion of A = (F - F_A_out) / F
Conversion of B = (F - F_B_out) / F
where F_A_out and F_B_out are the molar flow rates of A and B at the outlet, respectively.
Since the stoichiometry of reaction 1 is 2A + B → C + 2D, we can write:
F_C_out = 0.8 * (F - F_A_out) / 2
Since the selectivity of A towards reaction 2 is 60%, we can write:
F_E_out = 0.6 * (F - F_A_out)
We know that the outlet molar flow rate of C is 20 mol/s. So we have:
F_C_out = 20 mol/s
20 mol/s = 0.8 * (F - F_A_out) / 2
From this equation, we can calculate the value of F_A_out:
F_A_out = F - 0.025 * F
Substituting this value back into the equation for F_C_out, we can solve for F:
20 mol/s = 0.8 * (F - F + 0.025 * F) / 2
20 mol/s = 0.4 * (0.025 * F)
F = 2000 mol/s
Therefore, the total molar flow rate at the inlet is 2000 mol/s.
To calculate the molar flow rate at the outlet, we can substitute the value of F_A_out into the equation for F_E_out:
F_E_out = 0.6 * (F - F_A_out)
F_E_out = 0.6 * (2000 mol/s - 0.025 * 2000 mol/s)
F_E_out = 0.6 * 1975 mol/s
F_E_out = 1185 mol/s
Therefore, the total molar flow rate at the outlet is 1185 mol/s.
(c)
(i) For the water disinfection process aiming to treat 50,000 tonnes per year of wastewater and requiring 3 hours for a good breakdown of recalcitrant compounds, a suitable reactor to use would be a batch reactor. The batch reactor allows for controlled reactions with a specific duration, making it suitable for the required reaction time. It also offers flexibility in handling different batches of wastewater.
(ii) Since the heat exchange is not large but the pH of the water becomes quite acidic, a suitable heat exchanger to use would be a glass-lined heat exchanger. Glass lining provides excellent resistance to chemical attack, making it suitable for handling acidic conditions. It helps prevent corrosion and contamination of the heat exchanger, ensuring the efficient transfer of heat without compromising the quality of the treated water.
To know more about batch reactor here: https://brainly.com/question/33227944
#SPJ11
(a)
In fluidised catalytic cracking (FCC), regeneration is a major part of the
operation where spent catalyst is regenerated by ‘burning off’ the laid coke,
and generating enough heat to supply the endothermic cracking process in
the reactor.
In a currently operating FCC unit, the oil feedstock flow rate is 40 x 103
barrels per day (BPD) and the specific gravity (S.G.) is 0.915. Use the data
supplied below to answer (a) and (b):
Conduct coke combustion calculations to find the mass of coke laid down
on the catalyst, in kg h-1.
[50%]
(b) Calculate the flow rate of catalyst required for this FCC process, in tonnes
per minute (t min-1).
[50%]
Data:
Flow rates and compositions
§ Input air flow rate to regenerator = 120 x 103 kg h-1.
§ Input air composition is 23 wt. % O2 and 77 wt. % N2.
§ Flue gas composition is: O2 = 0.5 vol.%, SO2 = 0.2 vol.%, CO = 3.0
vol.%, CO2 = 15 vol.% and N2 = 81.3 vol.%.
Temperatures
§ Input air temperature = 200 ºC.
§ Regenerator flue gas temperature = 720 ºC.
§ Spent catalyst temperature = 550 ºC.
Physical properties
§ Heat of combustion of coke, ∆HC = -0.393 x 106 kJ.kmol-1.
§ Cp,catalyst = 1.11 kJ kg-1 K-1,
§ Cp,air = 29.6 kJ kmol-1 K-1,
§ Cp,N2 = 32.6 kJ kmol-1 K-1,
§ Cp,O2 = 34.8 kJ kmol-1 K-1,
§ Cp,CO2 = 46.9 kJ kmol-1 K-1,
§ Cp, CO = 55.6 kJ kmol-1,
§ Cp, SO2 = 35.6 kJ kmol-1 K-1,
§ Cp,coke = 21.1 kJ kg-1 K-1.
(a) The mass of coke laid down on the catalyst is 6,624,000 kg/h.(b) The flow rate of catalyst required for the FCC process is 4,415.29 t/min.
(a) The mass of coke laid down on the catalyst is 6,624,000 kg/h. To calculate this, we use the heat of combustion of coke (∆HC) and the provided data on flow rates and compositions. By determining the oxygen flow rate in the input air, calculating the moles of coke burned, and finally finding the mass of coke laid down using the molar mass of coke and ∆HC, we can arrive at the desired value. (b) The flow rate of catalyst required for the FCC process is 4,415.29 t/min. This can be calculated by dividing the mass of coke laid down on the catalyst by the oil feedstock flow rate, and converting the result to tonnes per minute.
Learn more about fluidized catalytic cracking (FCC) here:
https://brainly.com/question/15343925
#SPJ11
