| 摘要 |
PROBLEM TO BE SOLVED: To improve, in a compressed fluid storage power generation device, the power generation efficiency by reusing heat of a low-temperature heat source.SOLUTION: The compressed fluid storage power generation device comprises: a compressor 11 having an electric motor 34 and compressor bodies 22, 24 driven by the electric motor 34 to compress a working fluid; a pressure accumulation tank 12 storing the working fluid compressed by the compressor bodies; a power generator 13 having expanders 28, 32 which are driven by the working fluid supplied from the pressure accumulation tank 12, and a power generator body 35 driven by the expanders; high-temperature heat recovery sections 23, 25 recovering heat from the working fluid flowing from the compressor bodies into the pressure accumulation tank 12; high-temperature heating sections 27, 30 heating, by using the heat recovered in the high-temperature heat recovery sections, the working fluid flowing from the pressure accumulation tank 12 into the expanders; a low-temperature heat recovery section recovering heat generated in a low-temperature heat generation section of at least one of the compressor 11 and the power generator 13 into a low-temperature heat medium; and low-temperature heating sections 21, 26, 29 heating the working fluid through heat exchange with the low-temperature heat medium which recovered heat in the low-temperature heat recovery section.SELECTED DRAWING: Figure 1 |
