Engineering, 13.07.2019 20:20 malayalatham3357
Saturated liquid r-134a enters a heat exchanger at 200 kpa and 1.363 kg/s. the refrigerant cools liquid no. 2 diesel fuel (cp =2.1 kj/kg. k, p=760 kg/m^3) from 89°c to 8°c. the diesel flow rate is 175 liters per minute (1000 l 1 m3). determine: 1)- the rate of heat transfer, in kw 2)-the exit temperature of the refrigerant, in c
Answers: 2
Engineering, 03.07.2019 15:10
Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.
Answers: 1
Engineering, 04.07.2019 18:10
Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86
Answers: 2
Engineering, 04.07.2019 18:10
Water at 70°f and streams enter the mixing chamber at the same mass flow rate, determine the temperature and the quality of the exiting stream. 0 psia is heated in a chamber by mixing it with saturated water vapor at 20 psia. if both streams enters the mixing chamber at the same mass flow rate, determine the temperature and the quality of the existing system.
Answers: 2
Engineering, 04.07.2019 18:10
Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?
Answers: 3
Saturated liquid r-134a enters a heat exchanger at 200 kpa and 1.363 kg/s. the refrigerant cools liq...
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