Volumetric Efficiency Evaluation of the Use of Refrigerants R445a, R515a, R456a, ND, and R516a with Low GWP Instead of R134a

Ümit İŞKAN; Mehmet DİREK; Cemil KOYUNOĞLU; Fikret YÜKSEL

doi:https://doi.org/10.21597/jist.734720

Article Details

Volumetric Efficiency Evaluation of the Use of Refrigerants R445a, R515a, R456a, ND, and R516a with Low GWP Instead of R134a

Authors:

Ümit İŞKAN | Mehmet DİREK | Cemil KOYUNOĞLU | Fikret YÜKSEL

Publisher:

Igdir University

Main Topics:

Applied physics

Journal:

Journal of the Institute of Science and Technology 2021 Vol.11 Issue 1, pp.500-511

Document Type:

Article

Publication Date:

2/2021

Document Language:

English

Document ID (Org No.):

2000463209

Frequency:

Quarterly

eISSN:

2536-4618

DOI:

https://doi.org/10.21597/jist.734720

Abstract:

 

In this study, the performance of different refrigerants (with low GWP value) depending on thermophysical properties in the cooling system was evaluated. The cooling capacities of R134a, R445a, R515a, R456a, ND, and R516a refrigerants used in the cooling system are determined per unit refrigerant. If the compressor speed values and the volumetric efficiency of the compressor are constant, the results of the effects of the refrigerants in the cooling system are compared with each other. When the system is operated with R445a, the highest COP value is obtained when the volumetric efficiency value is 0.7. The R515a provided the closest COP value to R134a when the compressor speed was 1750 rpm and the 98% coefficient of performance value was similar. When the refrigerants considered are evaluated together, it was determined that R445a provides the best values according to R134a and has an average cooling capacity of approximately 12% is higher.

Article Details

Volumetric Efficiency Evaluation of the Use of Refrigerants R445a, R515a, R456a, ND, and R516a with Low GWP Instead of R134a

Authors: Ümit İŞKAN | Mehmet DİREK | Cemil KOYUNOĞLU | Fikret YÜKSEL

Publisher: Igdir University

Main Topics: Applied physics

Journal: Journal of the Institute of Science and Technology 2021 Vol.11 Issue 1, pp.500-511

Document Type: Article

Publication Date: 2/2021

Document Language: English

Document ID (Org No.): 2000463209

Frequency: Quarterly

eISSN: 2536-4618

DOI: https://doi.org/10.21597/jist.734720

Issues

Authors:

Ümit İŞKAN | Mehmet DİREK | Cemil KOYUNOĞLU | Fikret YÜKSEL

Publisher:

Igdir University

Main Topics:

Applied physics

Journal:

Journal of the Institute of Science and Technology 2021 Vol.11 Issue 1, pp.500-511

Document Type:

Article

Publication Date:

2/2021

Document Language:

English

Document ID (Org No.):

2000463209

Frequency:

Quarterly

eISSN:

2536-4618

DOI:

https://doi.org/10.21597/jist.734720