THERMAL SCIENCE

International Scientific Journal

Zhiyong Su

,

Gang Chen

,

Lei Liu

,

Haijun Li

,

Jiayang Gao

EFFECT OF SUPERHEAT ON REFRIGERATION SYSTEM PERFORMANCE OF REFRIGERATED TRUCK

ABSTRACT
According to the characteristics of variable operating conditions and high exhaust temperature of the refrigeration system of the refrigerator truck, the change of the superheat at the outlet of the evaporator is adjusted by a new electronic expansion valve, and a performance test-bed using the R404A refrigerant is built to study the influence of the superheat at the outlet of the evaporator on the performance of the refrigeration system of the refrigerator truck. The results show that in the process of increasing the superheat at the outlet of the evaporator, the outlet temperature of the evaporator increases and the evaporation temperature decrease, the cooling capacity of the system is reduced by 8.4%, and the COP of the system increases first and then decreases; At this time, the optimal superheat at the evaporator outlet is 6°C, and the system COP reaches the optimal value of 2.856.
KEYWORDS
refrigerated truck, refrigeration system, evaporator, Superheat
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/TSCI2403023S
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 3, PAGES [2023 - 2031]
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Effect of superheat on refrigeration system performance of refrigerated truck

© 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