Physics, 12.07.2019 22:20 brenda0014
Apump with an isentropic efficiency of 90% is operating in a rankine cycle. saturated liquid water enters at 100kpa and is compressed to 1mpa. what is the enthalpy at the exit?
a. 417.5kj/kg
b. 418.5kj/kg
c. 416.5kj/kg
d. 419.5kj/kg
Answers: 3
Physics, 22.06.2019 02:30, JanaMiqdad1003
Agas initially at p1 = 1 bar and occupying a volume of 0.5 liter is compressed within a piston–cylinder assembly to a final pressure p2 = 4 bar. (a) if the relationship between pressure and volume during the compression is pv = constant, determine the volume, in liters, at a pressure of 3 bar. (b) repeat for a linear pressure–volume relationship between the same end states. reference
Answers: 1
Physics, 22.06.2019 11:00, Arielledt10
1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
Answers: 1
Apump with an isentropic efficiency of 90% is operating in a rankine cycle. saturated liquid water e...
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