TY - JOUR
TI - Experimental study on refrigeration system's performance of the refrigerator truck using R404A refrigerant
AU - Su Zhiyong
AU - Zhao Kunzheng
AU - Li Haijun
AU - Zhang Yibo
JN - Thermal Science
PY - 2024
VL - 28
IS - 3
SP - 2033
EP - 2041
PT - Article
AB - 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.