QI) R () Condenser T; = 70°C 2) P= 1.2 MPa T, = 40°C T = 30°C Adishatie W-0.15 kW Compressor (sat. vapor)a (1)- P= 0.14 MPa Find: (a) T,-? Rpe (b) me-1a =? (c) V, =? (m/kg) (d) Ta -? (e) 7.omy ? O) AS,otal =? (Condenser) An adiabatic compressor works with R-134a as working fluid and 0.15 KW. The refrigerant enters compressor as saturated vapor at 0.14MP.. The refrigerant leaves compressor at 70°C and 1.2MPA and then enters condenser to be cooled at which pressure remains constant and leaves condenser at 40°C. If the surrounding temperature is 30°C Find: (a) initial temperature (T1), (b) mass flow rate of R-134a, (c) volumetric rate of R-134a at entrance of compressor ( V). (d) T2s. (e) compressor efficiency, () rate of heat losses from condenser, and (g) total entropy generation in condenser and also show if the process is possible or not.
QI) R () Condenser T; = 70°C 2) P= 1.2 MPa T, = 40°C T = 30°C Adishatie W-0.15 kW Compressor (sat. vapor)a (1)- P= 0.14 MPa Find: (a) T,-? Rpe (b) me-1a =? (c) V, =? (m/kg) (d) Ta -? (e) 7.omy ? O) AS,otal =? (Condenser) An adiabatic compressor works with R-134a as working fluid and 0.15 KW. The refrigerant enters compressor as saturated vapor at 0.14MP.. The refrigerant leaves compressor at 70°C and 1.2MPA and then enters condenser to be cooled at which pressure remains constant and leaves condenser at 40°C. If the surrounding temperature is 30°C Find: (a) initial temperature (T1), (b) mass flow rate of R-134a, (c) volumetric rate of R-134a at entrance of compressor ( V). (d) T2s. (e) compressor efficiency, () rate of heat losses from condenser, and (g) total entropy generation in condenser and also show if the process is possible or not.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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an T, =70 P=12MPa Adisbatic Wi = 015KW Compreser T (sat. vapory, =0 1eMe Razia An adigbatic compressor works with R-134a as working fluid and 0.15 KW. The refrigerant enters compressor as saturated vapor at 0.14MPa. The refrigerant leaves compressor at 70°C and 1.2MPa and then enters condenser 1o be cooled at which pressure remains constant and Jeaves condenser at 40°C If the surrounding temperature is 30°C Find: (a) mitial temperature (1), (b) mass flow rate of R-134a, (¢) volumetric rate of R-134a at entrance of compressor (1), (@) Tas » (€) compressor efficiency, (1) rate of heat losses from condenser. and () total entropy generation in condenser and also show if the process is possible or not.
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