438 寒冷地域の下水処理施設におけるMGTコジェネレーションシステムの適用(CGS II,環境保全型エネルギー技術)

概要

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General concept of small distributed energy plants remarkably begins to establish both of high energy saving and space saving effects. Numbers of examples with their systems are increased year by year, especially urban areas, however, it always cannot be the same in local areas. They may be based on the actual effects related with peculiar weather conditions of each districts. This study shows the performance of co-generation system operated by MGT in a snowy and cold area. This co-generation system was tested with digestive gas, produced in a fermenting gas tank of a sewage plant. Especially in cold circumstances, most of co-generation energy was forced to exhaust to heat up the tank, since it needs to keep the digested sludge temperature over 39℃. In this case, it is also indicated that yearly smoothing method for electric power production was strongly needed, since there are much methane fermented in summer but decisive lack of heating energy from MGT was encountered in winter.
社団法人日本機械学会の論文
2005-07-06