Investigations on Improving the Performance of Solid Desiccant Cooling Systems with Passive Radiative Sky Cooling Modules

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

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Detail(s)

Original languageEnglish
Title of host publicationProceedings of ASME 2022 Heat Transfer Summer Conference (HT2022)
Place of PublicationNew York, NY
PublisherThe American Society of Mechanical Engineers
ISBN (print)9780791885796
Publication statusPublished - 2022

Publication series

NameProceedings of ASME Heat Transfer Summer Conference, HT

Conference

TitleASME 2022 Summer Heat Transfer Conference (HT2022)
LocationSheraton Philadelphia Downtown
PlaceUnited States
CityPhiladelphia
Period11 - 13 July 2022

Abstract

Solid desiccant cooling (SDC) systems are alternatives to conventional vapor compression refrigeration (VCR) systems for indoor air conditioning. Also, passive radiative sky cooling (PRSC) has been shown as an effective electricity-free technology for cooling. PRSC technology has also been incorporated in some air conditioning systems, which were demonstrated to improve system performance considerably. However, the use of PRSC technology in SDC systems has not yet been reported. In this work, a new SDC system was introduced, featuring the use of the PRSC component, i.e., radiative cooling panels, for cooling the supply air to improve the system performance. Mathematical models were developed for each component in the system, after which the models were combined to establish the simulation model of the whole system. The models were validated by comparing with the results in other papers. The performance of the conventional and the newly introduced hybrid SDC systems were evaluated with the established simulation models under the typical hot and humid weather condition in Hong Kong. The performance improvement by adding the PRSC component in the hybrid SDC system was analysed by comparing with the performance of the conventional SDC system. It is shown that the use of the PRSC component can further improve the cooling performance of the SDC system by lowering the air temperature by 3 ℃ approximately. Therefore, the new hybrid SDC systems with the PRSC component provide a more energy efficient method for indoor air conditioning than conventional SDC systems, especially in hot and humid regions, like Hong Kong.

Research Area(s)

  • Solid Desiccant Cooling Systems, Passive Radiative Cooling, Mathematical Models, Performance Improvement Estimation

Bibliographic Note

Information for this record is supplemented by the author(s) concerned.

Citation Format(s)

Investigations on Improving the Performance of Solid Desiccant Cooling Systems with Passive Radiative Sky Cooling Modules. / Pan, A.; Chen, Siru; Ho, Tsz Chung et al.
Proceedings of ASME 2022 Heat Transfer Summer Conference (HT2022). New York, NY: The American Society of Mechanical Engineers, 2022. V001T20A002 (Proceedings of ASME Heat Transfer Summer Conference, HT).

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review