![PROBLEM 2 (29pt): Air, which behaves as an ideal gas with constant specific heats (taken as Cz»-1.005品.cv-0.718 ) undergoes a constant pressure process from 27°C and 2m to 227°C at 1MPa. kgk (a) What is the mass of the air? (b) What is the heat transfer of the air in [kJ]? Find (a)m Given (fill in missing information) State 1: State 2: Air Assumptions (fill in missing information) Air behaves as an ideal gas Cp1.005.Cy0.718 kJ kgK kJ Solution](http://img.homeworklib.com/questions/96b2f630-31ed-11eb-9fac-654d033826fb.png?x-oss-process=image/resize,w_560)
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PROBLEM 2 (29pt): Air, which behaves as an ideal gas with constant specific heats (taken...
Consider a piston cylinder process in air (as an ideal gas with constant specific heats) which...
Consider a piston cylinder process in air (as an ideal gas with constant specific heats) which goes from state 1 at 1 atm, 300 K to state 2 at: 3 atm and 400K. (use k=1.4, Cp = 1.005 kJ/(kg K), Cv=0.718 kJ/(kg K), R= 0.287 kJ/(kg K)) (these are the same conditions as question 4). What must the heat transfer be (in kJ/kg), if the process takes place without entropy generation and it can be assumed the temperature at system...
Air enters a diffuser at a constant 109 Kpa , 60 celcius and 292 meters per...
Air enters a diffuser at a constant 109 Kpa , 60 celcius and 292 meters per second. The air exits at 305 Kpa , 10 Celcius and 10 meters per second. The area of the inlet is 104 cm^2. You can assume the air is an ideal gas. CP and CV values are assumed constant. Steady flow. There is no change in Potential Energy. Ru=8.314 kj/kmol*k Mair = 28.97 kg/kmol cp=1.005 kj/kg*k cv=0.718 kj/kg*k Determine the average heat transfer time...
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of...
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of 50 kPa and initial specific volume of 4 m^3/kg to a final pressure of 80 kPa and final specific volume of 5 m^3/kg. The mass of the carbon monoxide is 3 kg. The gas has a molar mass of 44 kg/kmol and a specific heat at constant volume of 0.98 kJ/(kg∙K). Determine the entropy change of the gas during the process in kJ/K.
A piston-cylinder assembly contains air modeled as an ideal gas with a constant specific heat ratio,...
A piston-cylinder assembly contains air modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from p1 = 0.5 MPa to p2 = 0.4 MPa. Process 2-3: Polutropic expansion with n = k to p3 = 0.3 MPa. Process 3-4: Constant-pressure compression to V4 = V1. Process 4-1: Constant volume heating. Sketch the cycle on a p-v...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant...
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system. Solve using equations rather than with the tables. Note: The specific heat ratio and gas constant for air are given as k=1.4 and R-0287 kJ/kg-K respectively --Given Values-- Inlet Temperature: TI (K) 349 Inlet pressure: Pl (kPa) 460 Inlet Velocity: V1 (m/s) 73 Area at nozzle inlet: Al (cmA2) 8.19 Throat area: A...
PROBLEM-3 (30%) One kg of air in a piston-cylinder assembly undergoes two processes in series from...
PROBLEM-3 (30%) One kg of air in a piston-cylinder assembly undergoes two processes in series from an initial state where P1 = 0.5 MPa, T1 = 227°C: Process 1-2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 0.5 MPa. Sketch the two processes in series on a P-v diagram. Assuming ideal gas behavior, determine: (a) the pressure at state 2, (in MPa) (b) the temperature at state 3, (in...
Just need part 2 Problem 3.075 SI pv - constant. Assume ideal gas behavior for the...
Just need part 2
Problem 3.075 SI pv - constant. Assume ideal gas behavior for the air Determine the work and heat transfer, in kl. nder assembly contains 4.0 kg of ahic inieilly at 2.0 bar, 30 9C. The air undergoes a process to a state where the pressure is 1.0 bar, during which the pressure-volume relationship is ▼Step 1 Your answer is correct. Determine the work, in k We. 240.85 W12- the tolerance is +/-5% kd Attempts: 1 of...
1)(Hint: Cp=1.005 kJ/kg-K, Cv=0.718 kJ/kg-K, R=0.287 kJ/kg-K). An air-tight room contains 80 kg of air, and...
1)(Hint: Cp=1.005 kJ/kg-K, Cv=0.718 kJ/kg-K, R=0.287 kJ/kg-K). An air-tight room contains 80 kg of air, and a 2-kW baseboard electric resistance heater in the room is turned on and kept on for 15 min. The temperature rise of air at the end of 15 min is 2)An example of when it is appropriate to model a substance as an ideal gas is when a. The pressure and temperature are close to the critcal point b. The pressure and temperature are...
IDEAL GAS with Compressibility Factor Z correction Problem 2) Find the specific volume of the gas...
IDEAL GAS with Compressibility Factor Z correction Problem 2) Find the specific volume of the gas in Problem 1A(=1.48ft^3/lbm) using the compressibility factor Z. IDEAL GAS STATE Problem 1) Air is at 200F and a pressure of 50 psia. Assuming ideal gas estimate the specific volume of this air at this condition. Air at a density of 1.2 kg/m3 is at a pressure of 150 Kpa. Find the temperature of the air assuming ideal gas. Find the specific volume of...
Consider a piston cylinder process in air (as an ideal gas with constant specific heats) which goes from state 1 at 1 atm, 300 K to state 2 at: 3 atm and 400K. (use k=1.4, Cp = 1.005 kJ/(kg K), Cv=0.718 kJ/(kg K), R= 0.287 kJ/(kg K)) (these are the same conditions as question 4). What must the heat transfer be (in kJ/kg), if the process takes place without entropy generation and it can be assumed the temperature at system...
A gas turbine receives air at temperature T1 = 827 °C and specific volume v, -0.1 m®/kg. Air exits the turbine at P2 = 3 bar and T2 = 450 °C. The volumetric flow rate of air at the inlet is 0.5 m/s. The power output on the shaft is 1900 kW. Determine: The pressure of air at the inlet (pa) in kPa [2 marks] b) The mass flow rate in kg/s [1 mark] c) Find the rate of heat...
Air flows through a converging-diverging nozzle/diffuser. Assuming isentropic flow, air as an ideal gas, and constant specific heats determine the state at several locations in the system. Solve using equations rather than with the tables. Note: The specific heat ratio and gas constant for air are given as k=1.4 and R-0287 kJ/kg-K respectively --Given Values-- Inlet Temperature: TI (K) 349 Inlet pressure: Pl (kPa) 460 Inlet Velocity: V1 (m/s) 73 Area at nozzle inlet: Al (cmA2) 8.19 Throat area: A...
PROBLEM-3 (30%) One kg of air in a piston-cylinder assembly undergoes two processes in series from an initial state where P1 = 0.5 MPa, T1 = 227°C: Process 1-2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 0.5 MPa. Sketch the two processes in series on a P-v diagram. Assuming ideal gas behavior, determine: (a) the pressure at state 2, (in MPa) (b) the temperature at state 3, (in...
Just need part 2
Problem 3.075 SI pv - constant. Assume ideal gas behavior for the air Determine the work and heat transfer, in kl. nder assembly contains 4.0 kg of ahic inieilly at 2.0 bar, 30 9C. The air undergoes a process to a state where the pressure is 1.0 bar, during which the pressure-volume relationship is ▼Step 1 Your answer is correct. Determine the work, in k We. 240.85 W12- the tolerance is +/-5% kd Attempts: 1 of...
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