Abstract
This study shows an impact and a basic performance analysis of micro gas turbine (MGT) cogeneration system (CGS) and methane hydrate storage in the sewage treatment facility under various temperature conditions. The results show that, in either temperature condition, by only using biogas produced from the facility as a fuel, and methane hydrate storage method as a solution for the unbalance of biogas produced, MGT-CGS was sufficiently capable to cover all the total heat demand of the facility. On the biogas utilization and economic point of views, compared to the conventional system it was found that MGT-CGS was effective system and could reduce 82〜100% of unused biogas and 21〜33% of electrical demand. Whereas, for methane hydrate storage method, 3〜5% from reduced electricity was required. While adopting an actual data as a part of the calculation procedure, results of the performance analysis are shown in this paper.
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