Energy Requirement Analysis of Large-Scale Biogas Project in High-Cold Region of China

The annual mean temperature is very low in high cold region of China. The insulating and heating measures on the basis of the energy requirement analysis of biogas project are needed to ensure the normal running of fermentation process. In this paper, the heat calculation about a large-scale biogas fermentation system of Heilongjiang province was done according to the basic principles of engineering thermodynamics. Under the condition of the lowest average air temperature and the monthly average air temperatures, the energy requirement of the biogas project was studied. Its object was to provide reference for the design of insulating and heating system of large-scale biogas project in high-cold region of China.