An experimental study to convert a domestic refrigerator to produce cold water using R134a as a working fluid

Authors

  • HudaElslam Abdali Mohamed Mechanical Engineering Department, College of Mechanical Engineering Technology, Benghazi, Libya Author
  • Abdussalam Ali Ahamed Mechanical and Industrial Engineering Department, Bani Waleed University, Bani Walid, Libya Author
  • Ali Salama Mechanical Engineering Department, College of Mechanical Engineering Technology, Benghazi, Libya Author
  • Suoad Y. Alielmagssabi Mechanical Engineering Department, College of Mechanical Engineering Technology, Benghazi, Libya Author
  • Mansour A. Bellrasali Mechanical Engineering Department, College of Mechanical Engineering Technology, Benghazi, Libya Author
  • Hisham O. Altajoury Mechanical Engineering Department, College of Mechanical Engineering Technology, Benghazi, Libya Author

Keywords:

Vapor compression refrigeration, R134a, Coefficient of Performance (COP), Enthalpy change, Experimental analysis

Abstract

Abstract:
This study designed and constructed a simple vapor compression refrigeration system using R134a as the working fluid. The system's objective was to produce chilled water by immersing an evaporator coil into a water tank. The experiment was conducted under normal atmospheric conditions in a laboratory at the Faculty of Mechanical Engineering Technology in Benghazi, Libya. System performance was monitored by measuring pressure and temperature at the inlets and outlets of the primary components. The enthalpy changes of R134a were calculated to analyze its phase changes throughout the cycle, which were plotted on a P-h diagram. The Coefficient of Performance (COP) was determined for multiple experimental runs. The maximum recorded COP for the system was 2.4.

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Published

2025-08-30

Issue

Volume 1, No. 3, 2025

Section

Articles

License

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

HudaElslam Abdali Mohamed, Abdussalam Ali Ahamed, Ali Salama, Suoad Y. Alielmagssabi, Mansour A. Bellrasali, & Hisham O. Altajoury. (2025). An experimental study to convert a domestic refrigerator to produce cold water using R134a as a working fluid. Middle East Journal of Pure and Applied Sciences (MEJPAS), 1(3), 35-47. https://mideastjournals.com/index.php/mejpas/article/view/32