Performance test of solar-assisted ejector cooling system

Bin-Juine Huang, Wei-Zhe Ton, Chen-Chun Wu, Hua-Wei Ko, Hsien-Shun Chang, Hang-Yuen Hsu, Jen-Hao Liu, Jia-Hung Wu, Rue-Her Yen

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

A solar-assisted ejector cooling/heating system (SACH-2k) is built and test result is reported. The solar-driven ejector cooling system (ECS) is connected in series with an inverter-type air conditioner (IAC). Several advanced technologies are developed in SACH-k2, including generator liquid level control in ECS, the ECS evaporator temperature control, and optimal control of fan power in cooling tower of ECS. From the field test results, the generator liquid level control performs quite well and keeps stable performance of ejector. The ECS evaporator temperature control also performs satisfactorily to keep ejector performance normally under low or fluctuating solar radiation. The fan power control system cooling tower performs stably and reduces the power consumption dramatically without affecting the ECS performance. The test results show that the overall system COPo including power consumptions of peripheral increases from 2.94-3.3 (IAC alone) to 4.06-4.5 (SACH-k2), about 33-43%. The highest COPo is 4.5. © 2013 Elsevier Ltd and IIR. All rights reserved.
Original languageEnglish (US)
Pages (from-to)172-185
Number of pages14
JournalInternational Journal of Refrigeration
Volume39
DOIs
StatePublished - Mar 2014
Externally publishedYes

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