| 摘要 |
A power generation system using CO2 at room temperature is provided to use less energy to keep the inside of the expansion gas tank below -20°C during compressive liquefaction, thereby reducing the power consumption. CO2 liquid filled in a boiler is heated in order to generate CO2 gas of high pressure. A turbine is driven with the CO2 gas of high pressure. Expanded air of low pressure filled in an expansion tank is liquefied by a compressor and supplied to the boiler. The boiler is heated to the ambient temperature when the ambient temperature is higher than the geothermal temperature. A heat pump compressor is surrounded with geothermal water when a heat pump is driven. The heat pump is driven at the state where an evaporation tube is put in the expansion tank to liquefy the expanded air while keeping the inside of the expansion tank at low temperature. The liquid is received in a liquid receiver and pushed by a pressure pump into the boiler of high pressure, and then enters the boiler after heat exchange.
|
