SET Proceedings 2978-4387 Caravel Press 10.65582/set.2008.098 2008.098 Study on Solar and Heat Pump Combined Domestic Water Heating Systems with Diurnal Storage YuGuoqing guoqing.yu@163.com LiuJianyong YangHui mrhuiyang@163.com Deparment of building environment and services engineering, University of Shanghai for Science and Technology, Shanghai, China Branch in Shanghai, Guangdong Jirong engineering Co. Ltd, Shanghai, China 24082008 7 1 978-1-995850-08-5 759 763 24 August 2008 © 2008 Copyright WSSET 2008

In the paper, a simple domestic water heating system is assumed and a solar and heat pump combined heating system with diurnal storage is designed for it. Hourly simulations during a whole year were conducted under various conditions, such as different solar collector area, storage volume and heating capacities of heat pump, different hot water consumption profiles and so on. Based on the results of various simulations, some conclusions were drawn, such as the total energy-saving fraction, the water temperature variation, the suitable match of collector area, heat pump capacity and storage volume.

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