To efficiently generate electric power by using low temperature hot water which can be stably available such as factory waste warm water and geothermal hot water even if carbon dioxide is used for medium.
This power generation device is provided with a heating device 1 having high pressure liquefied carbon dioxide 2A contact hot water S to create high pressure carbon dioxide gas 2B, a turbine generator 3 driven by high pressure carbon dioxide gas 2B, a cooling device 6 cooling low pressure carbon dioxide gas 2C at an outlet of the turbine generator 3 to critical temperature or lower to make the same low pressure liquefied carbon dioxide 2D, and an injector 11 arranged at an outlet of the cooling device 6 blowing part of high pressure carbon dioxide gas 2B at the inlet of the turbine generator 3 and mixing the same with low pressure liquefied carbon dioxide 2D and sucking the mixture and raising pressure of the mixture to pressure roughly equivalent to high pressure carbon dioxide gas 2B at the inlet of the turbine generator 3 or higher and circulating high pressure liquefied carbon dioxide 2A to the heating device 1.
YAMANISHI AKIO
TANAKA DAISEI
JIO SERVICE KK
Seiichi Otsuka