Effect of Increasing Temperature on a Solar Biogas Projects for Breeding Farm

We build a small solar biogas projects for breeding farm and study on the effect of it's raise the fermenting liquid temperature through solar-sweltering pools,solar greenhouse and solar hot-water facilities-use solar by triple effects.The results show that:In winter,solar-sweltering pools can increasing the fermentation temperature to 10 ℃,approach to the temperature of fermentation witch is in biogas projects.After the materials into biogas projects,under the together action of solar greenhouse and solar hot-water facilities that the fermentation temperature increasing to 13.7 ℃,this is exceed 4.05 ℃ compared with CK;The fermentation temperature coefficient of variation is 0.86% that is 2.02% less than CK,the extent of changed maximal;Gas production can reach 16.51 m3/d that is exceed 65.21% compared with CK.This proves,the effects on increasing the fermentation temperature,heat preservation and biogas production of this small solar biogas project is obvious.