Experimental study on the effect of heat transfer temperature difference on frosting characteristics of air-cooled heat exchanger

Lu Jia, Jiang Shen, Kaiyong Hu*, Tingting Zhu

*Corresponding author for this work

Research output: Contribution to journalConference articleAcademicpeer-review

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Abstract

In this paper, the frosting experiment was carried out by the wind tunnel experimental device in the single experimental section of the closed-mouth return flow. Through the experimental study on the influence of heat exchange temperature difference on the growth characteristics of the frosting layer in the finned evaporator under the experimental conditions of different initial head wind speeds, the following conclusions were drawn: At 2m/s, the frost thickness of finned tube evaporator increases gradually with the frosting time at different heat exchange temperature differences. At 3, 4, 5m/s initial face wind speed, the frost thickness of finned tube evaporator grows in a three-stage pattern at different heat exchange temperature differences. The cooling capacity of the evaporator at different face wind speeds and different heat transfer temperature differences increases first and then decreases with the frosting time.

Original languageEnglish
Article number012123
JournalIOP conference series: Earth and environmental science
Volume791
Issue number1
DOIs
Publication statusPublished - 29 Jun 2021
Externally publishedYes
Event3rd International Conference on Advances in Civil Engineering, Energy Resources and Environment Engineering, ACCESE 2021 - Qingdao, China
Duration: 28 May 202130 May 2021
Conference number: 3

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