Engineering, 12.02.2020 02:02 7obadiah
A gas within a piston–cylinder assembly undergoes a thermodynamic cycle consisting of three processes:Process 1–2: Compression with pV 5 constant, from p1 5 1 bar, V1 5 2 m3 to V2 5 0.2 m3, U2 2 U1 5 100 kJ. Process 2–3: Constant volume to p3 5 p1.Process 3–1: Constant-pressure and adiabatic process. There are no significant changes in kinetic or potential energy. Determine the net work of the cycle, in kJ, and the heat transfer for process 2–3, in kJ. Is this a power cycle or a refrigeration cycle? Explain.
Answers: 3
Engineering, 03.07.2019 15:10
Ahouse has the following electrical appliance usage (1) single 40w lamp used for 4 hours per day (2) single 60w fan used for 12 hours per day (3) single 200w refrigerator that runs 24 hours per day with compressor run 12 hours and off 12 hours find the solar power inverter size in watt with correction factor of 1.25.
Answers: 1
Engineering, 04.07.2019 16:10
An electrical motor raises a 50kg load at a construct velencity .calculate the power of the motor, if it takes 40sec to raise the load through a height of 24m(take g =9.8n/g)
Answers: 2
Engineering, 04.07.2019 18:10
Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.
Answers: 1
Engineering, 04.07.2019 18:10
The higher the astm grain-size number, the coarser the grain is. a)-true b)-false
Answers: 3
A gas within a piston–cylinder assembly undergoes a thermodynamic cycle consisting of three processe...
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