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Updated: Jan 25, 2026

Experimental System of Solar Adsorption Refrigeration with Concentrated Collector
Published on: October 18, 2017
Improved energy utilization efficiency via adding solar radiant heating mode for traditional bioreactor to dispose
Changyu Liu1, Yong Sun2, Nan Li2
1College of Engineering, Northeast Agricultural University, Harbin 150030, China; College of Architecture and Civil Engineering, Northeast Petroleum University, Daqing 163318, China.
Abstract:
Energy utilization efficiency of heating for the operation process of biogas reactor is an important factor limiting its development and popularization. A novel mode of solar radiant heating combined with the conventional heating mode was proposed to reduce the power loss and improve the utilization cycle of heat exchanger. In present work, experimental and numerical researches about the anaerobic fermentation process under two heating modes were made to investigate the effect of temperature fluctuation on non-isothermal fermentation process under solar radiant heating. The results show that the methane production capacity of non-isothermal process under solar radiant heating reduces by up to 14% compared with the constant temperature condition in three seasons; increasing the total solid concentration of bioreactor is helpful for improving the effect of solar radiant heating; the effects of temperature fluctuation coefficient on acid and methane productions are bigger than the one on pH of slurry.
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