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.
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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.
Q1)
(3)
R13ta
Condenser
T; = 70°C
P2 = 1.2 MPa
T3 = 40°C
(2)
Turr = 30°C
Adishatic
W = 0.15 k w
Compressor
(sat. vapor)a
(1)
P = 0.14 MPa
Find:
(a) 7 =?
(b) mg-124a =!
(c) V, =? (m/kg)
(d) Ta -?
(e) 7eomp
=?
(f) Qout = ?
(0) ASretal = ? (Condenser)
An adiabatic 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
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 ( ). (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.
Transcribed Image Text:Q1) (3) R13ta Condenser T; = 70°C P2 = 1.2 MPa T3 = 40°C (2) Turr = 30°C Adishatic W = 0.15 k w Compressor (sat. vapor)a (1) P = 0.14 MPa Find: (a) 7 =? (b) mg-124a =! (c) V, =? (m/kg) (d) Ta -? (e) 7eomp =? (f) Qout = ? (0) ASretal = ? (Condenser) An adiabatic 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 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 ( ). (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.
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