Modeling and simulation of a desiccant assisted solar and geothermal air conditioning system

Arne Speerforck, Jiazhen Ling, Vikrant Aute, Reinhard Radermacher and Gerhard Schmitz

Energy, 2017, vol. 141, issue C, 2321-2336

Abstract: In this study, we investigated a desiccant assisted air conditioning system that includes borehole heat exchangers for direct cooling and solar energy for desiccant regeneration. We developed a system model and ran simulations of this model for five cities in the United States. Our research shows that the system can provide sufficient latent and sensible cooling throughout the cooling period. Depending on the location, a maximum Seasonal Energy Efficiency Ratio of up to 7.66 (kW/kW) is achieved. We further investigated the utilization of borehole heat exchangers within a desiccant assisted hybrid air conditioning system by comparing their energetic, economic and environmental performance to a vapor compression chiller that utilizes R410A as refrigerant. We found that electricity savings of more than 50% and CO2 equivalent emission savings of up to 91% are possible, while the geothermal system is not cost competitive at most of the investigated locations.

Keywords: Desiccant Wheel; Borehole Heat Exchanger; Solar Energy; Air Conditioning; Simulation; LCCP (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:141:y:2017:i:c:p:2321-2336

DOI: 10.1016/j.energy.2017.11.151

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