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USE THE AIR TABLES 0.5 kg of air is initially at 280 K, 100 kPa in...
Problem 4 (25 points) A piston cylinder contains 0.01 kg air at 290 K, 96 kPa....
Problem 4 (25 points) A piston cylinder contains 0.01 kg air at 290 K, 96 kPa. A reversible adiabatic compression brings it to 1/10 of the initial volume. After this process combustion adds 1000 kJ/kg of energy (assume heat transfer) in a constant P process to state 3. a) Plot the two process in a P-v and T-s diagram. b) Find P and T for state 2. c) Find T for state 3. d) Find the work in the two...
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It...
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It is then compressed in a polytropic process PV3 = C to half the original volume. Assuming the ideal gas model for air and specific heat ratio is constant, k=1.4, determine (a) the final temperature, (b) work and heat transfer, each in kJ. R= 0.287 kJ/kg K. W, 82
A frictionless piston-cylinder device contains 0.2 kg of air at 100 kPa and 27°C. The air...
A frictionless piston-cylinder device contains 0.2 kg of air at 100 kPa and 27°C. The air is now compressed slowly according to the relation P Vk = constant, where k = 1.4, until it reaches a final temperature of 77°C. Sketch the P-V diagram of the process with respect to the relevant constant temperature lines, and indicate the work done on this diagram. Using the basic definition of boundary work done determine the boundary work done during the process [-7.18...
Air in a piston-cylinder assembly undergoes a polytropic expansion in which the pressure – specific volume...
Air in a piston-cylinder assembly undergoes a polytropic expansion in which the pressure – specific volume relation is p. V..2=constant. The initial volume is 0.5 m², the initial temperature is 500 K and initial pressure is 600 kPa. The final pressure is 300 kPa. Determine (a) the mass of air, in kg (b) the boundary work, in kJ (c) the final temperature in K and (d) the heat transfer, in kJ.
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600 K. Now...
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
Patm 100 kPa 1 kg of water is contained in a frictionless piston cylinder device fitted...
Patm 100 kPa 1 kg of water is contained in a frictionless piston cylinder device fitted with two stops. The mass of the piston is 50 kg and the system is open to the atmosphere with Ptm - 100 kPa. The initial temperature of the system Ti Tantal 105 'C and the initial volume V1 Vinitial 1 m3 When the piston reaches the second stop, the volume of the water is doubled (V4Vinal2 Vinitial). Heat is EE transferred between the...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of AIR and FOUR kg of HELIUM GAS are sealed in a rigid and insulated intenal-piston-cylinder device. Initially the helium is at 300 K and 800 kPa. The air is at 900 K and 200 kPa. When released, the rigid piston moves slowly and conducts heat from the hot gas to the cold gas. The mass and energy of the piston material are negligible. But...
nts) Calculate the change in internal energy during the conversi . (20 poi on of 2 kg of saturated liquid water to saturated vapor i 100 kPa? Assuming heat is added to the piston cylinder in the...
nts) Calculate the change in internal energy during the conversi . (20 poi on of 2 kg of saturated liquid water to saturated vapor i 100 kPa? Assuming heat is added to the piston cylinder in the process, what is the work performed by the piston (boundary work)? What is the required heat in if you assume a heat loss of 50 kJ during the process? Please show work using a T-v AND P-v diagram n a piston cylinder at...
Piston work using Steam tables: Problem 3) 0.1 kg of Steam is expanded in a piston...
Piston work using Steam tables: Problem 3) 0.1 kg of Steam is expanded in a piston to do work. If the steam is expanded in a piston engine at a constant pressure of 200kPa starting at a temperature of 500C. The piston has a diameter of 0.3m and a stroke of 1m. Find: The initial state of the piston (P,T,v, u,h,s) The initial volume of the cylinder The final state of the fluid P,T,v,u,h,s (hint compute the final volume and...
0.15 kg of air in a frictionless piston cylinder at 100 kPa and 600 K is...
0.15 kg of air in a frictionless piston cylinder at 100 kPa and 600 K is cooled to a final temperature of 25°C by heat rejection to the surroundings which are at a temperature of 25°C. (a) Show the process on a P-v diagram with lines of constant temperature, and on a T-s diagram with lines of constant pressure. (b) Determine the total work done and the total heat transfer for the process. (c) Calculate the entropy change for the...
Problem 4 (25 points) A piston cylinder contains 0.01 kg air at 290 K, 96 kPa. A reversible adiabatic compression brings it to 1/10 of the initial volume. After this process combustion adds 1000 kJ/kg of energy (assume heat transfer) in a constant P process to state 3. a) Plot the two process in a P-v and T-s diagram. b) Find P and T for state 2. c) Find T for state 3. d) Find the work in the two...
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It is then compressed in a polytropic process PV3 = C to half the original volume. Assuming the ideal gas model for air and specific heat ratio is constant, k=1.4, determine (a) the final temperature, (b) work and heat transfer, each in kJ. R= 0.287 kJ/kg K. W, 82
Air in a piston-cylinder assembly undergoes a polytropic expansion in which the pressure – specific volume relation is p. V..2=constant. The initial volume is 0.5 m², the initial temperature is 500 K and initial pressure is 600 kPa. The final pressure is 300 kPa. Determine (a) the mass of air, in kg (b) the boundary work, in kJ (c) the final temperature in K and (d) the heat transfer, in kJ.
5. A rigid tank initially contains 10 kg O2 at 200 kPa and 600
K. Now O2 is gradually cooled under constant volume until its
temperature reaches 455 K. (18 Points) (a) Calculate the pressure
of O2 at final state. (4 points) (b) Determine the boundary work.
(6 points) (b) Calculate the heat transfer during this process. (8
Points)
let me know if u want the property table
MAE 320 - Thermodynamics + > e ecampus.wvu.edu/bbcswebdav/pid-6846897-dt-content-rid-82617141 1/courses/star50314.202005/MAE320-2020-Summer-HW04.pdf Q4 to Q6...
Patm 100 kPa 1 kg of water is contained in a frictionless piston cylinder device fitted with two stops. The mass of the piston is 50 kg and the system is open to the atmosphere with Ptm - 100 kPa. The initial temperature of the system Ti Tantal 105 'C and the initial volume V1 Vinitial 1 m3 When the piston reaches the second stop, the volume of the water is doubled (V4Vinal2 Vinitial). Heat is EE transferred between the...
ANSWERS provided are just "ballpark values"... DO NOT WORK BACKWARD FROM THESE ANSWERS. NINE kg of AIR and FOUR kg of HELIUM GAS are sealed in a rigid and insulated intenal-piston-cylinder device. Initially the helium is at 300 K and 800 kPa. The air is at 900 K and 200 kPa. When released, the rigid piston moves slowly and conducts heat from the hot gas to the cold gas. The mass and energy of the piston material are negligible. But...
nts) Calculate the change in internal energy during the conversi . (20 poi on of 2 kg of saturated liquid water to saturated vapor i 100 kPa? Assuming heat is added to the piston cylinder in the process, what is the work performed by the piston (boundary work)? What is the required heat in if you assume a heat loss of 50 kJ during the process? Please show work using a T-v AND P-v diagram n a piston cylinder at...
0.15 kg of air in a frictionless piston cylinder at 100 kPa and 600 K is cooled to a final temperature of 25°C by heat rejection to the surroundings which are at a temperature of 25°C. (a) Show the process on a P-v diagram with lines of constant temperature, and on a T-s diagram with lines of constant pressure. (b) Determine the total work done and the total heat transfer for the process. (c) Calculate the entropy change for the...
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