use the refrigerant tables (134a for example)MODULE: THERMODYNAMICS QUESTION 1A steady-flow Carnot refrigeration cycle uses refrigerant-134a as the working fluid. The refrigerant changes from saturated vapour to saturated liquid at 70°C in the condenser as it rejects heat. The evaporator pressure is 100 kPa. Show the cycle on a T-s diagram relative to saturation lines , and determine(a) The coefficient of performance, (b) The amount of heat absorbed from the refrigerated space (c) The network input. a.2.56 ; 89.20 kJ/kg ; 213.29 kJ/kg b.2.56 ; 89.20 kJ/kg ; 30.89 kJ/kg c.2.56 ; 89.20 kJ/kg ; 17.89 kJ/kg d.2.56 ; 89.20 kJ/kg ; 34.89 kJ/kg

Given that: For a Carnot refrigeration cycle with R134a as working fluid, Condenser temperature is…

Answered: A steady-flow Carnot refrigeration…

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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use the refrigerant tables (134a for example)

MODULE: THERMODYNAMICS

QUESTION 1

A steady-flow Carnot refrigeration cycle uses refrigerant-134a as the working fluid. The refrigerant changes from saturated vapour to saturated liquid at 70°C in the condenser as it rejects heat. The evaporator pressure is 100 kPa. Show the cycle on a T-s diagram relative to saturation lines , and determine

(a) The coefficient of performance,

(b) The amount of heat absorbed from the refrigerated space

(c) The network input.

a.

2.56 ; 89.20 kJ/kg ; 213.29 kJ/kg

b.

2.56 ; 89.20 kJ/kg ; 30.89 kJ/kg

c.

2.56 ; 89.20 kJ/kg ; 17.89 kJ/kg

d.

2.56 ; 89.20 kJ/kg ; 34.89 kJ/kg

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