Patent ID: 8015808
Filing Date: 2011-09-13
Classification: F02B,F02G,F17C,H01M,Y02E,Y02T

Abstract:
1. A power plant system that can use a fuel that is a gas at ambient temperature and pressure, comprising an energy recovery system that comprises: at least one cryogenic fuel storage container; a first conduit fluidly coupling the fuel storage container and the power plant for delivering fuel from the fuel storage container to the power plant; at least one regenerative thermodynamic cycle engine thermally coupled to the first conduit such that heat may be exchanged between the fuel and a working fluid for the regenerative thermodynamic cycle engine; an energy recovery operating mode to recover energy from release of fuel from cryogenic storage when the power plant is operating; and a reversed operating mode as a cryogenic refrigerator to condense fuel boil-off or subcool stored fuel to prevent evaporation of the fuel when the power plant is shut down.