| Abstract |
The heat discharged without being used for surroundings including the factory waste heat is not a little. It is widely used when the temperature of the heat source is high, and it is used comparatively effectively. On the other hand, the heat is not effectively used for the heat source of a low temperature of 100Ž or less. As for the geothermal energy, this is similar. It is used as a geothermal power generation when the steam of the high temperature and high pressure is obtained, and the usage is not wide for the steam and the hot water of the low temperature and low pressure. If the use as heat in the hot spring, the indoor air-conditioning (heating), the greenhouse, and the road heating, etc. is excluded for the hot water of 100Ž or less, it is hardly used in Japan. In this paper, it introduces the power generation technology which obtains electricity from the hot water of 100Ž or less by using the power generation cycle when the medium with a low boiling point (low boiling point medium) is made an working fluid. |