subject
Engineering, 12.12.2019 06:31 joshajgaa

Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 30 kw to heat a dwelling on a day when the outside temperature is below freezing. saturated vapor enters the compressor at 2.1 bar, and saturated liquid exits the condenser, which operates at 8 bar. determine for an isentropic compressor efficiency of 85%: (a) the refrigerant mass flow rate, in kg/s.; (b) the magnitude of the compressor power, in kw; (c) the coefficient of performance. (

ansver
Answers: 2

Other questions on the subject: Engineering

image
Engineering, 04.07.2019 18:10, anna22684
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
image
Engineering, 04.07.2019 19:10, 592400014353
For a process taking place in a closed system containing gas, the volume and pressure relationship is pvi-constant. -1.5 bar, the process starts with initial conditions, pi = =0.03 m3 and ends with final volume, v2-0.05 m3 determine the work done by the gas.
Answers: 2
image
Engineering, 04.07.2019 19:20, holaadios222lol
Apiping systems consists of 6 m of 6-std type k and 12 m of 4-std type k, both drawn copper tubing. the system conveys ethylene glycol at a rate of 0.013 m3/s. the pressure drop across the system is to be calculated. there are two 90° elbows in the 6-in pipe, a reduction from the 6-in pipe to the 4-in pipe and four 90° elbows in the 4-in pipe. all fittings are soldered (same as flanged) and regular. the inlet and outlet of the system are at the same height.
Answers: 1
image
Engineering, 06.07.2019 03:10, lwattsstudent
List and describe in sequence the operation process steps for boxf machine?
Answers: 1
You know the right answer?
Refrigerant 134a is the working fluid in a vapor-compression heat pump that provides 30 kw to heat a...

Questions in other subjects:

Konu
Chemistry, 23.01.2021 22:30
Konu
Health, 23.01.2021 22:30