气候变化领域集成服务门户(CCPortal): Experimental research on the cooling effect of a novel two-phase closed thermosyphon with semiconductor refrigeration in permafrost regions

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DOI	10.1016/j.csite.2023.103935
	Experimental research on the cooling effect of a novel two-phase closed thermosyphon with semiconductor refrigeration in permafrost regions
	Liu, Yongheng; Chen, Ji; Wang, Chuanglu; Liu, Youqian; Zhang, Shouhong; Dong, Tianchun; Zhao, Yaojun; Wang, Juncheng; Wang, Xi; Hou, Xin
发表日期	2024
ISSN	2214-157X
起始页码	54
卷号	54
英文摘要	Hybrid two-phase closed thermosyphon (TPCT) artificial ground freezing technique is an effective cooling strategy adaptable to different geological and meteorological conditions in permafrost regions. Previous studies have focused on the feasibility of hybrid TPCT with little atten tion given to the cooling characteristics and long-term effects of this technique under actual environmental conditions. In this study, a novel structured semiconductor refrigeration device, with simple structure, small size, and wide operating temperature range, was designed and manufactured to act as the active condenser of a hybrid TPCT, and the cooling effect of this device was investigated during a two-year field test under stable power supply. This study showed that: 1) The minimum (maximum) average temperature of the semiconductor refrigeration two-phase closed thermosyphon (SRTPCT) evaporator was 0.5 (2.1) degrees C lower than the TPCT evaporator. The average ground temperature decreased by 0.3 degrees C, and the permafrost table rose to 0.2 m at 1 m from the evaporators around SRTPCT. The semiconductor refrigeration device added more than 9.75 MJ of cold storage to the soil around the TPCT evaporator during an operating cycle. 2) The optimal working period for the semiconductor refrigeration device was from June to October, and the cooling effect was better when the ambient temperature was low in the warm season. 3) As active condenser of hybrid TPCT in permafrost regions, semiconductor refrigeration device has a larger heat transfer power enhancement for TPCTs than vapor compression refrigeration device in the warm season, and vice versa in the cold season, as well as a higher heat transfer power enhancement for TPCTs than adsorption refrigeration device. The results of this study provide relevant parameters and references for the design and engineering application of future SRTPCT.
英文关键词	Hybrid two-phase closed thermosyphon; S emiconductor refrigeration device; Artificial ground freezing; Permafrost regions; Ground temperature; Qinghai-tibet plateau
语种	英语
WOS研究方向	Thermodynamics
WOS类目	Thermodynamics
WOS记录号	WOS:001156408200001
来源期刊	CASE STUDIES IN THERMAL ENGINEERING
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/290544
作者单位	Chinese Academy of Sciences; Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; Lanzhou University of Technology
推荐引用方式 GB/T 7714	Liu, Yongheng,Chen, Ji,Wang, Chuanglu,et al. Experimental research on the cooling effect of a novel two-phase closed thermosyphon with semiconductor refrigeration in permafrost regions[J],2024,54.
APA	Liu, Yongheng.,Chen, Ji.,Wang, Chuanglu.,Liu, Youqian.,Zhang, Shouhong.,...&Hou, Xin.(2024).Experimental research on the cooling effect of a novel two-phase closed thermosyphon with semiconductor refrigeration in permafrost regions.CASE STUDIES IN THERMAL ENGINEERING,54.
MLA	Liu, Yongheng,et al."Experimental research on the cooling effect of a novel two-phase closed thermosyphon with semiconductor refrigeration in permafrost regions".CASE STUDIES IN THERMAL ENGINEERING 54(2024).