%0 Journal Article
%T Investment and Economy Analysis of Water-Source Heat Pump System in Chongqing, China
%A Yong Ding
%A Xin Huang
%A Xiaobo Wu
%A Baizhan Li
%J Journal of Renewable Energy
%D 2013
%I Hindawi Publishing Corporation
%R 10.1155/2013/574196
%X In China, the application of renewable energy witnesses rapid development. In the near future, a lot of demonstration projects will be built and thus it is urgent to know the economics of renewable energy building application technologies. Based on the renewable energy demonstration projects in Chongqing city, the author discussed the economy issue of water-source heat pump system (WSHPs) in order to provide suggestions for the application projects. According to the design information of demonstration projects, the average incremental investment, allowance, and payback period are calculated in this paper. Comparing WSHPs with traditional heating, ventilation, and air conditioning (HVAC) system, the saved energy of WSHPs is estimated in the current paper. The author calculated the amount of saved energy in unit applied area and unit intake water. Besides, the economy and efficiency of WSHPs project is analyzed at the end of this paper. 1. Introduction China is an energy consumption power. The shortage of energy resources is a big problem. Nowadays, conventional energy resources cannot meet the current huge energy demand and thus it is urgent to apply renewable energy technologies to solve the problems of energy shortage. In China, about 1/3 of total consumed energy is used in building, and HVAC systems account for more than 50% building energy consumption [1]. Renewable energy building application is a significant way to alleviate the situation in China. Many demonstration projects have been completed and put into operation. The application of WSHPs, seawater heat pump system, and ground source heat pump system becomes a hot topics for researchers. Research is mainly about the application potential, energy efficiency rate, modeling, and performance evaluation [2¨C4]. In order to promote the application, it is worth studying whether WSHPs is economical or not in a city like Chongqing. Combined with the geological conditions and meteorological parameters, the condition of renewable energy sources as well as the energy saving potential and the energy saving rate [5¨C8] was analyzed. Tests of the demonstration projects were carried out in Chongqing. Researchers analyzed the economic benefits of the demonstration projects and studied the relationship between the natural source building application and indoor environment [9, 10].The available technologies for energy saving were discussed by various researchers and they suggested to create a database for the application of WSHPs [11]. Experiments were conducted and it was found that WSHPs projects in Chongqing
%U http://www.hindawi.com/journals/jre/2013/574196/