標題: The experimental study on biogas power generation enhanced by using waste heat to preheat inlet gases
作者: Lee, Tsung-Han
Huang, Sheng-Rung
Chen, Chiun-Hsun
機械工程學系
Department of Mechanical Engineering
關鍵字: Biogas;Biogas generator;Methane concentration;Inlet gas temperature
公開日期: 1-二月-2013
摘要: A 30 kW generator at the Taiwan Sugar Swine Farm in Taichung was used to collect data intended for long-term electricity generation. This three-part experimental study utilized a biogas with a 73% methane concentration. First, the effect of the biogas supply rate on generator performance at different excess air ratios is investigated. Second, the results from this study are compared with results obtained from work performed on a biogas with a 60% methane concentration. Finally, for a 73% methane concentration biogas, the effect on generator performance of preheating the inlet gas to different temperatures is investigated by applying a waste-heat recovery system. Power generation increases with increasing biogas methane concentration, except when A (excess air ratio) < similar to 0.85. However, thermal efficiency increases with increasing methane concentration only when lambda > similar to 0.95, although on the relatively rich side (lambda < 0.95), there is no benefit. The improved generator performance obtained by preheating the inlet gas is apparent when the excess air ratio is relatively high, such as when lambda > 1.3. (C) 2012 Elsevier Ltd. All rights reserved.
URI: http://dx.doi.org/10.1016/j.renene.2012.06.032
http://hdl.handle.net/11536/20777
ISSN: 0960-1481
DOI: 10.1016/j.renene.2012.06.032
期刊: RENEWABLE ENERGY
Volume: 50
Issue: 
起始頁: 342
結束頁: 347
顯示於類別:期刊論文


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  1. 000311865900040.pdf