Research on solar-natural gas combined heating technology in cold and severe cold zone

Abstract The winter is very cold in cold and severe cold areas in China, we will burn coal to keep warm, in order to allow urban and rural residents to be warm in winter. Uncontrolled resource development and inefficient energy utilization have resulted in a lot of waste of resources and increasingly serious ecological pollution. How to develop and utilize renewable resources is a serious challenge that China needs to face. This paper carries out a study on the solar-natural gas combined heating system based on the climate and energy situation of cold and severe cold regions, to achieve a seamless connection between the two systems. This technology can combine the advantages of two energy supply systems, overcome their own shortcomings. It has obvious energy-saving effect, significant economic benefits and a high promotional value.