An electric vehicle including the Rankine cycle in which a circulation system of working fluid is formed is proposed. The Rankine cycle includes a pump configured to circulate the working fluid along the circulation system, a heat source comprising a battery unit, a motor unit, and a solar panel unit to transmit thermal energy to the working fluid circulated by the pump, a power generating unit provided on a path of the circulation system to generate electric energy through the thermal energy of the working fluid passing through the heat source, and a radiator configured to perform a heat exchange process between the working fluid passing through the power generating unit and outside air. The Rankine cycle further includes a flow distributor to distribute the working fluid circulated by the pump to at least any one of the battery unit, the motor unit, and the solar panel unit.

The present invention provides a high efficiency prime mover with phase change energy storage for distributed generation and motor vehicle application. Phase change storage minimizes energy required for refrigerant liquefaction while reducing fuel consumption and emissions.

A closed loop steam engine assembly includes a steam generator and a prime mover which is driven from steam produced by the generator. A compressor receives exhaust steam from the prime mover and compresses the steam to a liquid state which is stored in a reservoir downstream of the compressor. A feed pump delivers a portion of the compressed and heated liquid from the reservoir to the steam generator, while another portion of the liquid is delivered to an inlet of the compressor, where the liquid flashes to mist and combines with the incoming exhaust steam to help condense the exhaust steam to liquid with greater efficiency than the compressor alone. An oil/fluid separation device may segregate any oil contained in the exhaust stream and route the oil back to an oil inlet of the prime mover.

A closed loop steam engine assembly includes a steam generator and a prime mover which is driven from steam produced by the generator. A compressor receives exhaust steam from the prime mover and compresses the steam to a liquid state which is stored in a reservoir downstream of the compressor. A feed pump delivers a portion of the compressed and heated liquid from the reservoir to the steam generator, while another portion of the liquid is delivered to an inlet of the compressor, where the liquid flashes to mist and combines with the incoming exhaust steam to help condense the exhaust steam to liquid with greater efficiency than the compressor alone. An oil/fluid separation device may segregate any oil contained in the exhaust stream and route the oil back to an oil inlet of the prime mover.

An energy system having a) one or more catalyst sources which store a catalyst; b) one or more water sources which store water; c) one or more heat sources which store a heat storage medium; d) one or more reaction chambers into which the water, the catalyst, and the heat storage medium are introduced, which are configured for an exothermic reaction between the catalyst and the water to take place while in the presence of the heat storage medium, and in which steam is generated from the exothermic reaction; and f) one or more turbines downstream of the one or more reaction chambers which are adapted to be driven by the steam generated within the one or more reaction chambers.

An energy system having a) one or more catalyst sources which store a catalyst; b) one or more water sources which store water; c) one or more heat sources which store a heat storage medium; d) one or more reaction chambers into which the water, the catalyst, and the heat storage medium are introduced, which are configured for an exothermic reaction between the catalyst and the water to take place while in the presence of the heat storage medium, and in which steam is generated from the exothermic reaction; and f) one or more turbines downstream of the one or more reaction chambers which are adapted to be driven by the steam generated within the one or more reaction chambers.

A method for recovering heat from a flue gas from an engine and a heat recovery system are described. The method involves contacting coolant in a vaporization chamber with a plurality of flow-modifying structures. The structures are arranged in series in the direction of the flow of coolant liquid and are each configured for modifying the flow of the coolant liquid and the vapour in said vaporization chamber.

A powerplant is provided that includes an engine and a water recovery system. The engine includes an engine combustor, an engine turbine, a flowpath and a fluid delivery system. The flowpath extends out of the engine combustor and through the engine turbine. The fluid delivery system includes a hydrogen reservoir and an oxygen reservoir. The hydrogen reservoir is configured to store fluid hydrogen as liquid hydrogen. The oxygen reservoir is configured to store fluid oxygen as liquid oxygen. The fluid delivery system is configured to provide the fluid hydrogen and the fluid oxygen for combustion within the engine combustor to produce combustion products within the flowpath. The water recovery system is configured to extract water from the combustion products. The water recovery system is configured to provide the water to a component of the powerplant.

A powerplant is provided that includes an engine and a water recovery system. The engine includes an engine combustor, an engine turbine, a flowpath and a fluid delivery system. The flowpath extends out of the engine combustor and through the engine turbine. The fluid delivery system includes a hydrogen reservoir and an oxygen reservoir. The hydrogen reservoir is configured to store fluid hydrogen as liquid hydrogen. The oxygen reservoir is configured to store fluid oxygen as liquid oxygen. The fluid delivery system is configured to provide the fluid hydrogen and the fluid oxygen for combustion within the engine combustor to produce combustion products within the flowpath. The water recovery system is configured to extract water from the combustion products. The water recovery system is configured to provide the water to a component of the powerplant.

The present invention relates to an arrangement comprising a waste heat recovery system (WHR-system) and a method for controlling the arrangement. The arrangement comprises an expansion tank having a constant inner volume, first cooling means configured to cool the working fluid in the condenser and a control unit configured to control the first cooling means such that the working fluid is cooled to a desired condensation temperature in the condenser during operation of the WHR system. The arrangement comprises further a sub-cooler arranged in a position downstream of the condenser and second cooling means configured to cool the working fluid in the sub-cooler, and that the control unit is configured to control the second cooling means such that the working fluid receives a determined subcooling in the sub-cooler during operation of the WHR system.