Engineering, 24.02.2020 23:21 Kittylover65
A piston cylinder device contains .04 kg of air intialy at 250 kpa , 35 c during a quasiequilibrium isothermal proccess the pressure increases to 750 kpa while the paddle wheel simoltanisly does 10 kj of work on the air
Answers: 3
Engineering, 06.07.2019 02:30, jayjay5246
Air (c-1.006 kj/kg. k, r-0.287 kj/kg. k) enters a nozzle steadily at 280 kpa and 77°c with a velocity of 50 m/s and exits at 85 kpa and 320 m/s. the heat losses from the nozzle to the surrounding medium at 20°c are estimated to be 3.2 kj/kg. determine (a) the exit temperature and (b) the total entropy change for this process. solve this problem using constant specific heats.
Answers: 1
Engineering, 06.07.2019 03:10, kturvey225
Consider a 1.2 meter high and 2 meter wide glass window whose thickness is 6 mm and thermal conductivity is 0.78 w/m °c. the room temperature is maintained at 24 °c, while the outdoor temperature is -5 °c. the convective heat transfer coefficients on the inner and outer surfaces of the window are 10 w/m2 °c and 25 w/m2 °c respectively. (a) draw the thermal resistance network, etermine the steady rate of heat transfer t e glass window (c) determine the temperature of the inner surface of the window
Answers: 3
A piston cylinder device contains .04 kg of air intialy at 250 kpa , 35 c during a quasiequilibrium...
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