Performance analysis on a hybrid air-conditioning system of a green building |
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| Affiliation: | 1. Energy 2050 Group, Department of Mechanical Engineering, University of Sheffield, United Kingdom;2. Department of Mechanical Engineering, Majmaah University, Kingdom of Saudi Arabia;3. School of Built Environment, University of Nottingham, United Kingdom;4. Department of Mechanical Engineering, University of Strathclyde, United Kingdom;1. Department of Mechanical Engineering, The Petroleum Institute, PO Box: 2533, Abu Dhabi, United Arab Emirates;2. Center for Environmental Energy Engineering, 4164 Glenn Martin Hall Bldg., College Park, MD, USA;1. University Miguel Hernández, Avda. Universidad S/N, Elche 03202, Spain;2. Prointer, S.L., C/Nicolás de Buss, 30, Elche 03320, Spain |
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| Abstract: | This paper presents the performance analysis on a hybrid air-conditioning system according to the hybrid building energy system of the green building demonstration project in Shanghai, in which a 150 m2 solar collector is used to power two 10 kW adsorption chillers, a vapor compression heat pump is used to cool air in the evaporating end while the condensing heating at about 80 °C is fully used to regenerate a liquid desiccant dehumidification system. In the hybrid system, the sensible cooling to the air is treated mainly by solar adsorption cooling and vapor compression cooling, whereas the latent heat is treated by the liquid desiccant dehumidification system with regeneration from the condensing heat of the heat pump. The results show that the performance of this system is 44.5% higher than conventional vapor compression system at a latent load of 30% and this improving can be achieved by 73.8% at a 42% latent load. The optimal ratio of adsorption refrigerating power to total cooling load for this kind of hybrid systems is also studied in this paper. |
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