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The Effect of Eco-friendly Refrigerants on Performance of Vapor Compression Refrigeration System with Dedicated Mechanical Subcooling

  • Naushad Ahmad AnsariEmail author
  • Akhilesh Arora
  • Samsher
  • K. Manjunath
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 36)

Abstract

The demand for high-performance refrigeration systems with eco-friendly refrigerants is increasing due to global warming. In this article, the thermodynamic analysis of a vapor compression refrigeration system with dedicated mechanical subcooling using eco-friendly refrigerants R1243zf, R1233zd(E) is carried out and their performance is compared with refrigerant R134a. The parameters like COP and exergetic efficiency of the system is computed. The effects of subcooling temperature, condenser temperature, evaporator temperature, compressor efficiency, and effectiveness of heat exchanger are also investigated and discussed. The performance of the system can be directly related to subcooling temperature. There is an optimum value of subcooling temperature predicted for the system in this article. In the study, it is observed that low GWP refrigerant R1233zd(E) is a better-performing refrigerant than R134a, whereas R1243zf is also a low GWP refrigerant which has slightly lower COP and exergetic efficiency than R134a.

Keywords

COP Exergetic efficiency Subcooling Eco-friendly 

Nomenclature

COP

Coefficient of performance

GWP

Global warming potential

ODP

Ozone depletion level

Q

Heat transfer (kW)

W

Work transfer (kW)

h

Enthalpy (kJ/kg)

T

Temperature (℃)

P

Pressure (kPa)

η

Efficiency

\( \dot{m} \)

Mass flow rate (kg/s)

ε

Effectiveness

EP

Exergy in product (kW)

Subscripts

Comp

Compressor

r

Refrigerant

ex

Exergetic

0

Ambient states

scc

Subcooling refrigeration cycle

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Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  • Naushad Ahmad Ansari
    • 1
    Email author
  • Akhilesh Arora
    • 1
  • Samsher
    • 1
  • K. Manjunath
    • 2
  1. 1.Mechanical Engineering DepartmentDelhi Technological UniversityDelhiIndia
  2. 2.Mechanical EngineeringCh. B. P. Government Engineering CollegeDelhiIndia

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