THERMAL SCIENCE

International Scientific Journal

Authors of this Paper

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Zhiyong Su

,

Kunzheng Zhao

,

Haijun Li

,

Yibo Zhang

EXPERIMENTAL STUDY ON REFRIGERATION SYSTEM'S PERFORMANCE OF THE REFRIGERATOR TRUCK USING R404A REFRIGERANT

ABSTRACT
A refrigerated system experimental bench using R404A as the refrigerant was built to address the current issues of high compressor discharge temperature and poor refrigeration performance of refrigerated systems for cold storage. The effects of compressor speed and temperature changes within the storage on the main refrigeration performance parameters of the system were studied and analyzed. The results show that when the rotational speed is increased from 2500-4500 rpm under the conditions of 32°C outside and 0°C inside, the highest system exhaust temperature is 84.3°C, which is lower than 90°C, and the maximum system COP is 3.86, and when the compressor speed is increased from 3500 rpm under the conditions of -5°C to 5°C, the system exhaust temperature is lower than 90°C. The COP can reach 2.74, especially at -5°C.
KEYWORDS
refrigerated truck, refrigeration system, R404A refrigerant, refrigeration performance
PAPER SUBMITTED: 2022-01-10
PAPER REVISED: 2023-03-08
PAPER ACCEPTED: 2023-05-19
PUBLISHED ONLINE: 2024-05-18
DOI REFERENCE: https://doi.org/10.2298/TSCI2403033S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 3, PAGES [2033 - 2041]
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Experimental study on refrigeration system's performance of the refrigerator truck using R404A refrigerant

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence