Experimental investigation on controllable loop thermosyphon with a reservoir

Cao, Jingyu; Pei, Gang; Jiao, Dongsheng; Zhao, Pinghui; Li, Jing; Wang, Yunyun

doi:10.1016/j.applthermaleng.2017.07.182

Experimental investigation on controllable loop thermosyphon with a reservoir

Cao, Jingyu; Pei, Gang; Jiao, Dongsheng; Zhao, Pinghui; Li, Jing; Wang, Yunyun

Authors

Jingyu Cao

Gang Pei

Dongsheng Jiao

Pinghui Zhao

Dr Jing Li Jing.Li@hull.ac.uk
Senior Research Fellow

Yunyun Wang

Abstract

The controllable loop thermosyphons (CLTs) can be widely applied in temperature control applications, such as cool-storage refrigerators powered by solar energy or electricity with the TOU (time of use) price. However, the performance of the CLT requires further optimization. In this study, a new CLT is designed and reservoir structure is adopted to improve the steady-state heat transfer performance. Three control modes are available to control the start-stop of the CLT and their influence on the start-stop performances is investigated. For each control mode, the valve location and test conditions are varied; results are compared and analyzed. Control mode A performs well and is affected weakly by the valve location. The control ability of control mode B is acceptable only when the valve is located on the lower liquid line. The start-stop performance of control mode C is better than that of control mode A and B; and with its best valve location, the CLT starts up quickly in approximately 25 s and stops in about 75 s under various test conditions. The experimental investigation revealed that control mode C is the optimal one and that valves are better to be installed in lower positions for all control modes.

Citation

Cao, J., Pei, G., Jiao, D., Zhao, P., Li, J., & Wang, Y. (2017). Experimental investigation on controllable loop thermosyphon with a reservoir. Applied thermal engineering, 126, 322-329. https://doi.org/10.1016/j.applthermaleng.2017.07.182

Journal Article Type	Article
Acceptance Date	Jul 25, 2017
Online Publication Date	Jul 26, 2017
Publication Date	Nov 5, 2017
Deposit Date	Mar 24, 2022
Journal	Applied Thermal Engineering
Print ISSN	1359-4311
Publisher	Elsevier
Peer Reviewed	Peer Reviewed
Volume	126
Pages	322-329
DOI	https://doi.org/10.1016/j.applthermaleng.2017.07.182
Keywords	Refrigerator; Loop thermosyphon; Reservoir; Start-stop; Control mode
Public URL	https://hull-repository.worktribe.com/output/3602620