スクロール式膨張機を用いた小温度差ガスハイドレート発電システムの開発

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  • Development of small temperature difference gas hydrate power generation system using scroll expansion machine

抄録

<p>Gas hydrate has gas molecules in cage-like water molecules, large pressure difference by the change of state is obtained to a small temperature change. This study propose a power generation system that utilizes unique state change characteristics by thermal cycle of gas hydrate. The required energy for operation of the proposed system is only heat, and the heat source use the waste heat (high temperature heat source) of individual houses and the outside air temperature (low temperature heat source) in the cold district. We developed a trial power generation system which adopts scroll expander for actuator. It uses CO2 in consideration of safety and convenience. CO2 hydrate is generated from the contact part between water and CO2 gas. Therefore, investigate the change in overall efficiency by changing the installation method (contact area) of the reactor in the trial power generation system. As a result, it is expected that the power generation efficiency will reach 11.8% by properly installing the reactor.</p>

収録刊行物

  • 年次大会

    年次大会 2018 (0), J0620005-, 2018

    一般社団法人 日本機械学会

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