Performance Enhancement of Hybrid Solid Desiccant Cooling Systems by Integrating Solar Water Collectors in Taiwan

Win-Jet Luo, Dini Faridah, Fikri Rahmat Fasya, Yu-Sheng Chen, Fikri Hizbul Mulki and Utami Nuri Adilah
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Win-Jet Luo: Graduate Institute of Precision Manufacturing Engineering, National Chin-Yi University of Technology, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Dini Faridah: Graduate Institute of Precision Manufacturing Engineering, National Chin-Yi University of Technology, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Fikri Rahmat Fasya: Department of Refrigeration, Air Conditioning and Energy Engineering, National Chin-Yi University of Technology, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Yu-Sheng Chen: Department of Refrigeration, Air Conditioning and Energy Engineering, National Chin-Yi University of Technology, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Fikri Hizbul Mulki: Department of Refrigeration, Air Conditioning and Energy Engineering, National Chin-Yi University of Technology, Zhongshan Rd., Taiping Dist., Taichung 41170, Taiwan
Utami Nuri Adilah: Department of Refrigeration and Air Conditioning Engineering, Politeknik Negeri Bandung, Gegerkalong Hilir Rd., Parongpong Dist., Bandung 40012, Indonesia

Energies, 2019, vol. 12, issue 18, 1-18

Abstract: A hybrid solid desiccant cooling system (SDCS), which combines a solid desiccant system and a vapor compression system, is considered to be an excellent alternative for commercial and residential air conditioning systems. In this study, a solar-assisted hybrid SDCS system was developed in which solar-heated water is used as an additional heat source for the regeneration process, in addition to recovering heat from the condenser of an integrated heat pump. A solar thermal collector sub-system is used to generate solar regeneration water. Experiments were conducted in the typically hot and humid weather of Taichung, Taiwan, from the spring to fall seasons. The experimental results show that the overall performance of the system in terms of power consumption can be enhanced by approximately 10% by integrating a solar-heated water heat exchanger in comparison to the hybrid SDCS system. The results show that the system performs better when the outdoor humidity ratio is large. In addition, regarding the effect of ambient temperature on the coefficient of performance (COP) of the systems, a critical value of outdoor temperature exists. The COP of the systems gradually rises with the increase in ambient temperature. However, when the ambient temperature is greater than the critical value, the COP gradually decreases with the increase in ambient temperature. The critical outdoor temperature of the hybrid SDCS is from 26 °C to 27 °C, and the critical temperature of the solar-assisted hybrid SDCS is from 27 °C to 30 °C.

Keywords: hybrid solid desiccant cooling system; regeneration process; solar thermal collector; coefficient of performance (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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