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a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is compressed to 600 kpa, 260 °C. Calculate the heat transfer during the process. Consider the process as a polytropic .R= 0.2081 [kJ/kg.K] ,CV= 0.3122kj/kg k.

a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is compressed to 600 kpa, 260 °C. Calculate the heat transfer during the process. Consider the process as a polytropic .R= 0.2081 [kJ/kg.K] ,CV= 0.3122kj/kg k.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Q1 a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is compressed to 600 kpa, 260 °C. Calculate the heat transfer during the process. Consider the process as a polytropic .R= 0.2081 [kJ/kg.K] ,CV= 0.3122kj/kg k. b- Water in a chamber within which piston moves maintaining constant pressure at 330 F, quality 85% with a volume of 0.12 m'. A heater is turned on heating the water with 3 kw. What is the elapsed time to vaporize all the liquid? h= 887,5 Btu/lbm ,v=0.01776 ft’/lbm ,V=4.29ft/lbm Q2 A mass flow rate (0.22 1lbm/s) of steam entering a nozzle at 145 psi, 752°F (h=1403.215 Btu/lbm) with negligible kinetic energy. The exit is at 72.5psi, 662 °F (h= 1361.844 Btu/lbm). Consider adiabatic flow process , Find the nozzle exit velocity and the exit area.
Transcribed Image Text:Q1 a- A piston cylinder maintaining gas at 137kpa , 16°C, and the volume is 0.2 m3. The gas is compressed to 600 kpa, 260 °C. Calculate the heat transfer during the process. Consider the process as a polytropic .R= 0.2081 [kJ/kg.K] ,CV= 0.3122kj/kg k. b- Water in a chamber within which piston moves maintaining constant pressure at 330 F, quality 85% with a volume of 0.12 m'. A heater is turned on heating the water with 3 kw. What is the elapsed time to vaporize all the liquid? h= 887,5 Btu/lbm ,v=0.01776 ft’/lbm ,V=4.29ft/lbm Q2 A mass flow rate (0.22 1lbm/s) of steam entering a nozzle at 145 psi, 752°F (h=1403.215 Btu/lbm) with negligible kinetic energy. The exit is at 72.5psi, 662 °F (h= 1361.844 Btu/lbm). Consider adiabatic flow process , Find the nozzle exit velocity and the exit area.
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