Dynamic Simulation of a Variable-Speed Ground-Coupled Liquid Desiccant Air-Conditioner for Use in Subtropical Regions

Abstract

Abstract-The dynamic performance of a novel variable-speed ground-coupled liquid desiccant air-conditioner (VSGCLDAC) was analysed and compared with that of a conventional constant-speed ground-coupled heat pump (GCHP) in to the subtropical climate of Hong Kong. It was found that both the borehole length and the total energy consumption were reduced substantially. For the case of a multi-storey building, the VSGCLDAC could generally serve one more floor as compared to the GCHP system. Together with the enhancement of the indoor air quality, the VSGCLDAC was demonstrated to be a good choice for use in a low-rise building.