Performance assessment and transient optimization of multi-stage solid desiccant air conditioning systems with building PV/T integration

Mohamed Gadalla; Mohammad Saghafifar

doi:10.1117/12.2237520

23 September 2016 Performance assessment and transient optimization of multi-stage solid desiccant air conditioning systems with building PV/T integration

Mohamed Gadalla, Mohammad Saghafifar

Author Affiliations +

Proceedings Volume 9937, Next Generation Technologies for Solar Energy Conversion VII; 99370S (2016) https://doi.org/10.1117/12.2237520
Event: SPIE Optics + Photonics for Sustainable Energy, 2016, San Diego, California, United States

Abstract

One of the popular solar air conditioning technologies is desiccant air conditioning. Nonetheless, single stage desiccant air conditioning systems’ coefficient of performance (COP) are relatively low. Therefore, multi-stage solid desiccant air conditioning systems are recommended. In this paper, an integrated double-stage desiccant air conditioning systems and PV/T collector is suggested for hot and humid climates such as the UAE. The results for the PV/T implementation in the double-stage desiccant cooling system are assessed against the PV/T results for a single-stage desiccant air conditioning system. In order to provide a valid comparative evaluation between the single and double stage desiccant air conditioning systems, an identical PV/T module, in terms of dimensions, is incorporated into these systems. The overall required auxiliary air heating is abated by 46.0% from 386.8 MWh to 209.0 MWh by replacing the single stage desiccant air conditioning system with the proposed double stage configuration during June to October. Moreover, the overall averaged solar share during the investigated months for the single and double stage systems are 36.5% and 43.3%.

Conference Presentation

Citation Download Citation

Mohamed Gadalla and Mohammad Saghafifar "Performance assessment and transient optimization of multi-stage solid desiccant air conditioning systems with building PV/T integration", Proc. SPIE 9937, Next Generation Technologies for Solar Energy Conversion VII, 99370S (23 September 2016); https://doi.org/10.1117/12.2237520

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