Abstract: On the basis of promoting the joint application of solar energy and conventional energy, this paper proposes a photovoltaic power generation and solid heat storage co-heating system, and takes an enterprise in Zhangjiakou as an example to design a combined heating system. Using the solar radiation data of Zhangjiakou Meteorological Station collected by Meteonorm, the power generation of the company's photovoltaic system was simulated and combined with solid heat storage. Through the comparative analysis with its original heating system, it is found that the photovoltaic power generation and solid heat storage combined heating system can be profitable in the first two years, and the operating cost in the 25th year is 128,000 yuan, which is much lower than the original heating system, and can also reduce the emission of pollutants.

Key words: central heating, solid heat storage, photovoltaic power generation, heat source transformation, Economic benefits

摘要： 在促进太阳能与常规能源联合应用的基础上,文中提出了一种光伏发电与固体储热联合供暖系统,并以张家口某一企业为例,设计联合供暖系统。利用Meteonorm收录的张家口气象站太阳辐射量数据,模拟该企业光伏系统的发电量,与固体储热联合供暖。光伏系统的发电量供暖期用来减少供暖系统的用电量,非供暖期实现并网盈利用来减少供暖系统的运行费用。通过与其原有供暖系统对比分析发现光伏发电与固体储热联合供暖系统前2年可实现盈利,在第25年运行费用为12.8万元,远低于原有供暖系统,同时还能减少污染物的排放。

关键词: 联合供暖, 固体储热, 光伏发电, 热源改造, 经济效益