APPLICATION OF SOLAR HEATING SYSTEM IN BIOGAS PRODUCTION
In the biogas production from agriculture manure by anaerobic digestion, it is necessary to keep the bioreactor optimum and steady temperature. The optimum condition usually can not be achieved automatically in winter in North China. The solar water heating system using evacuated tubes with auxiliary electrical heater was adopted to charge the thermal energy to the bioreactor, which made the bioreactor work regularly. It was experimentally investigated that the required solar collector area, the production amount of the biogas and the auxiliary electrical power at the temperature of 15, ℃ 20 and 25 of the ℃ ℃ bioreactor. The biogas production system has been running steadily for two years. As a result, when the daily average solar flux was 13.2 MJ/m2 and the temperature of a bioreactor of 6m3 was optimized to be at (20±1) in the coldest month in Beijing, 3.85m ℃ 2 of solar collector area was required, and 0.2-0.25m3/m3d of biogas can be obtained.
Rong Dai Chang Chun Zhibin Xu Xiaobing Liu Ζhifeng Wang
Himin Solar Energy Group Co., Ltd, Dezhou, Shangdong 253090, P.R.China ;Institute of Electrical Engi Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing 100080, P.R.China Himin Solar Energy Group Co., Ltd, Dezhou, Shangdong 253090, P.R.China
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）