摘要:
A compressed air energy storage power generation device 2 includes a first heat exchanger 16, a heat storage tank 20, a second heat exchanger 18, a heating unit 22, a first power distributor 24, and a controller 26. The first heat exchanger 16 performs heat exchange between the compressed air from a compressor 6 and the heating medium. The heat storage tank 20 stores the heating medium heat-exchanged by the first heat exchanger 16. The second heat exchanger 18 performs heat exchange between the compressed air from an accumulator tank 8 and the heating medium from the heat storage tank 20. The heating unit 22 heats the heating medium with the power of a power generator 12. The first power distributor 24 distributes the generated power of the power generator 12 to a power system 25 and the heating unit 22. When the internal pressure of the accumulator tank 8 reaches a predetermined pressure and the generated power is larger than the power demand, the controller 26 performs control to supply a part or all of the generated power to the heating unit 22 by the first power distributor 24. Therefore, it is possible to improve the power generation efficiency of the compressed air energy storage power generation device 2 and to reduce the equipment cost.
摘要:
A combined power apparatus (1) combines a Rankine cycle apparatus (3) that includes an expansion machine for expanding steam to generate power, and a binary cycle apparatus (4) that recovers thermal energy contained in the expanded steam and uses this thermal energy to generate power. A controller (12) adjusts the amount of thermal energy recovered from the Rankine cycle apparatus (3) by the binary cycle apparatus (4) so that the temperature of steam after being expanded by the expansion machine of the Rankine cycle apparatus (3) becomes 100°C or higher and/or the pressure of steam becomes atmospheric pressure or higher.