1. A standard refrigerating system with a heat exchanger is operating with a condenser pressure of 1571.2 kPa and evaporator pressure of 421.35 kPa using refrigerant R22. If the liquid line from the condenser is soldered to the suction line from the evaporator to form a heat exchanger and if as a result of this, the saturated vapor leaving the evaporator is superheated by 10°. Determine (a) temperature of refrigerant entering the compressor (b) temperature of refrigerant leaving the compressor (c) degree superheat leaving the compressor (d) temperature of subcooled liquid leaving heat exchanger (e) degree subcooled leaving the heat exchanger (f) mass of flash gas per kg refrigerant entering evaporator (g) compression ratio (h) clearance volumetric efficiency of compressor if the clearance volume is 5% (i) refrigerating effect (1) mass flow rate of refrigerant per ton of refrigeration (k) work on compressor (1) work on compressor per ton of refrigeration (m) condenser load (n) condenser load per ton of refrigeration (0) volume capacity of compressor per ton of refrigeration (p) coefficient of performance (q) draw the system diagram (r) draw the ph diagram 18 answers

1. A standard refrigerating system with a heat exchanger is operating with a condenser pressure of 1571.2 kPa and evaporator pressure of 421.35 kPa using refrigerant R22. If the liquid line from the condenser is soldered to the suction line from the evaporator to form a heat exchanger and if as a result of this, the saturated vapor leaving the evaporator is superheated by 10°. Determine (a) temperature of refrigerant entering the compressor (b) temperature of refrigerant leaving the compressor (c) degree superheat leaving the compressor (d) temperature of subcooled liquid leaving heat exchanger (e) degree subcooled leaving the heat exchanger (f) mass of flash gas per kg refrigerant entering evaporator (g) compression ratio (h) clearance volumetric efficiency of compressor if the clearance volume is 5% (i) refrigerating effect (1) mass flow rate of refrigerant per ton of refrigeration (k) work on compressor (1) work on compressor per ton of refrigeration (m) condenser load (n) condenser load per ton of refrigeration (0) volume capacity of compressor per ton of refrigeration (p) coefficient of performance (q) draw the system diagram (r) draw the ph diagram 18 answers

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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Question

1. A standard refrigerating system with a heat exchanger is operating with a condenser pressure of 1571.2 kPa and
evaporator pressure of 421.35 kPa using refrigerant R22. If the liquid line from the condenser is soldered to the
suction line from the evaporator to form a heat exchanger and if as a result of this, the saturated vapor leaving
the evaporator is superheated by 10.
Determine
(a) temperature of refrigerant entering the compressor
(b) temperature of refrigerant leaving the compressor
(c) degree superheat leaving the compressor
(d) temperature of subcooled liquid leaving heat exchanger
(e) degree subcooled leaving the heat exchanger
(f) mass of flash gas per kg refrigerant entering evaporator
(g) compression ratio
(h) clearance volumetric efficiency of compressor if the
clearance volume is 5%
18 answers
(i) refrigerating effect
(i) mass flow rate of refrigerant per ton of refrigeration
(k) work on compressor
(1) work on compressor per ton of refrigeration
(m) condenser load
(n) condenser load per ton of refrigeration
(0) volume capacity of compressor per ton of refrigeration
(p) coefficient of performance
(q) draw the system diagram
(r) draw the ph diagram

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