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In a refrigerant 12 system which serves a 250 kw evaporator at -30°C. The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 40°C. h2 = 357 kJ/kg, h4 = 365 kJ/kg Compute the ff: - mass flow rate at low stage compressor (m1), answer must be in kg/s - mass flow rate at high stage compressor (m3), answer must be in kg/s - low stage compressor work, answer must be in kw

In a refrigerant 12 system which serves a 250 kw evaporator at -30°C. The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 40°C. h2 = 357 kJ/kg, h4 = 365 kJ/kg Compute the ff: - mass flow rate at low stage compressor (m1), answer must be in kg/s - mass flow rate at high stage compressor (m3), answer must be in kg/s - low stage compressor work, answer must be in kw

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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In a refrigerant 12 system which serves a 250 kw evaporator at -30°C. The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 40°C.

h2 = 357 kJ/kg, h4 = 365 kJ/kg

Compute the ff:
- mass flow rate at low stage compressor (m1), answer must be in kg/s
- mass flow rate at high stage compressor (m3), answer must be in kg/s
- low stage compressor work, answer must be in kw

In a Refrigerant 12 system which serves a 250 kw evaporator at - 30 °C. The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 40°C. Compute: h2=357kJ/kg, h4=365kJ/kg mass flow rate at low stage compressor (m1) kg/s mass flow rate at high stage compressor (m3) kg/s low stage compressor work kw
Transcribed Image Text:In a Refrigerant 12 system which serves a 250 kw evaporator at - 30 °C. The system uses two stage compression with intercooling and removal of flash gas. The condenser temp is 40°C. Compute: h2=357kJ/kg, h4=365kJ/kg mass flow rate at low stage compressor (m1) kg/s mass flow rate at high stage compressor (m3) kg/s low stage compressor work kw
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