Portal de Periódicos da CAPES

A review on solar assisted heat pump systems in Singapore

2013; Elsevier BV; Volume: 26; Linguagem: Inglês

10.1016/j.rser.2013.05.032

1879-0690

Zakaria Mohd. Amin, M.N.A. Hawlader,

Solar Energy Systems and Technologies

A solar assisted heat pump is used for different applications, such as, water heating, drying and air conditioning. The unglazed evaporator-collector enables to absorb both solar energy and ambient energy due to low operating temperature. Three different systems are described: solar assisted heat pump system for hot water using an unglazed evaporator collector; solar assisted heat pump for hot water and drying, where evaporator collector and air collector are used; an integrated solar heat pump system making use of solar and ambient energy, and air-con waste heat. Unlike conventional collector, evaporator collector was found to have higher efficiency, 80% to 90%, and the coefficient of performance attained a value as high as 8.0. The integrated system leads to a reduction of global warming, as it uses solar energy, ambient energy and air-con waste heat.