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Problem #4: Air is compressed in a piston cylinder from 1 bar, 17 °C such that...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 4 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 9 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Problem 1: A piston-cylinder assembly contains 0.5 m3 of air at 1 bar and 20 C....
Problem 1: A piston-cylinder assembly contains 0.5 m3 of air at 1 bar and 20 C. The piston compresses the air until the volume of air becomes 0.1 m3. If PV14constant during this process and changes in kinetic and potential energy are negligible, determine (a) The final pressure of air, in bar (b) The work, in kJ (c) The heat transfer, in kJ rn
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is 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: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
5. (a)Consider adiabatic compression of 2 kg of air in a piston-cylinder assembly from 1 bar...
5. (a)Consider adiabatic compression of 2 kg of air in a piston-cylinder assembly from 1 bar and 330 K (State 1) to 14 bar and 700 K (State 2). Air can be considered an ideal gas at these conditions and molecular weight of air is 28.97 kg/kmol. Find the entropy of air in State 1 and State 2. Using the entropy balance equation for a closed system calculate the entropy generation (kJ/K) during the compression process. (b) If entropy decreases...
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by...
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by following a process with Pv14-const. If air is considered as ideal gas, please determine: (1) The air temperature after compression, (2) The heat transfer into or out of the system
1.) a) Water in a piston–cylinder assembly undergoes a constant-pressure process at 30 bar from T1...
1.) a) Water in a piston–cylinder assembly undergoes a constant-pressure process at 30 bar from T1 = 255.1°C to saturated vapor. Determine the work for the process, in kJ per kg of water. b) A piston-cylinder assembly contains 4.4 kg of water at 238oC and 3 bar. The water is compressed to a saturated vapor state where the pressure is 53.9 bar. During compression, there is a heat transfer of energy from the water to its surroundings having a magnitude...
4. Nitrogen in a piston/cylinder assembly undergoes an internally reversible compression between specified states through a...
4. Nitrogen in a piston/cylinder assembly undergoes an internally reversible compression between specified states through a polytropic process with n=1.30. Determine P, the work and heat transfer and entropy change during the process. The volume at state 1 is 0.5 m', the pressure at state 1 is 1. bar, and the temperature at state 1 is 20°C. The temperature at state 2 is 200°C. P2 - bar W = Q= AS _ kJ/K
A piston-cylinder assembly contains 2.8 kg of water at 237.3°C and 3 bar. The water is...
A piston-cylinder assembly contains 2.8 kg of water at 237.3°C and 3 bar. The water is compressed to a saturated vapor state where the pressure is 52 bar. During compression, there is a heat transfer of energy from the water to its surroundings having a magnitude of 213 kJ. Neglecting changes in kinetic energy and potential energy, determine the work, in kJ, for the process of the water.
Q3: Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 27 C...
Q3: Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 27 C to an exit pressure of 900 kPa. Determine the compressor work with the mass flow rate of 0.12 kg/s;(R-0,287 kJ/kgK) 0 a) Polytropic compression with n-1.3, b) Ideal two stage compression with intercooling with a polytropic exponent of 1 .3. Hava särekli akh, tersinir bir kompresörde 100 kPa basinç ve 27 C sicakliktan, 900 kPa basinca sikaşturidmaktadur. Akgkarun kätle debisinin 0.12...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 4 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 9 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Problem 1: A piston-cylinder assembly contains 0.5 m3 of air at 1 bar and 20 C. The piston compresses the air until the volume of air becomes 0.1 m3. If PV14constant during this process and changes in kinetic and potential energy are negligible, determine (a) The final pressure of air, in bar (b) The work, in kJ (c) The heat transfer, in kJ rn
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is 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: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
5. (a)Consider adiabatic compression of 2 kg of air in a piston-cylinder assembly from 1 bar and 330 K (State 1) to 14 bar and 700 K (State 2). Air can be considered an ideal gas at these conditions and molecular weight of air is 28.97 kg/kmol. Find the entropy of air in State 1 and State 2. Using the entropy balance equation for a closed system calculate the entropy generation (kJ/K) during the compression process. (b) If entropy decreases...
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by following a process with Pv14-const. If air is considered as ideal gas, please determine: (1) The air temperature after compression, (2) The heat transfer into or out of the system
4. Nitrogen in a piston/cylinder assembly undergoes an internally reversible compression between specified states through a polytropic process with n=1.30. Determine P, the work and heat transfer and entropy change during the process. The volume at state 1 is 0.5 m', the pressure at state 1 is 1. bar, and the temperature at state 1 is 20°C. The temperature at state 2 is 200°C. P2 - bar W = Q= AS _ kJ/K
A piston-cylinder assembly contains 2.8 kg of water at 237.3°C and 3 bar. The water is compressed to a saturated vapor state where the pressure is 52 bar. During compression, there is a heat transfer of energy from the water to its surroundings having a magnitude of 213 kJ. Neglecting changes in kinetic energy and potential energy, determine the work, in kJ, for the process of the water.
Q3: Air is compressed steadily by a reversible compressor from an inlet state of 100 kPa and 27 C to an exit pressure of 900 kPa. Determine the compressor work with the mass flow rate of 0.12 kg/s;(R-0,287 kJ/kgK) 0 a) Polytropic compression with n-1.3, b) Ideal two stage compression with intercooling with a polytropic exponent of 1 .3. Hava särekli akh, tersinir bir kompresörde 100 kPa basinç ve 27 C sicakliktan, 900 kPa basinca sikaşturidmaktadur. Akgkarun kätle debisinin 0.12...
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