A combined heat and power (CHP) system is installed with a power lock-out feature preventing flow of heated working fluid to an expander driving a generator generating electrical power until installation by a licensed person is completed, whereby heat can be provided to a building substantially immediately after installation of the CHP system, while power generation can be deferred until convenient.
F24D 3/08 - Hot-water central heating systems in combination with systems for domestic hot-water supply
F24H 1/52 - Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
F24H 9/20 - Arrangement or mounting of control or safety devices
F02C 6/18 - Plural gas-turbine plantsCombinations of gas-turbine plants with other apparatusAdaptations of gas-turbine plants for special use using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants
F24H 1/00 - Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.
Waste heat in the exhaust from the expander can be used to heat or alternatively to dry an element in a device that can be operated as a desiccator to dry air when operated in a summer mode, or to heat air when operated in a winter mode. The air having been dried or alternatively heated is then ducted to an evaporative cooler which cools the dried air in summer mode and humidifies the heated air in winter mode.
B60K 3/00 - Arrangement or mounting of steam or gaseous-pressure propulsion units
B60K 3/02 - Arrangement or mounting of steam or gaseous-pressure propulsion units of piston type
B60K 3/04 - Arrangement or mounting of steam or gaseous-pressure propulsion units of turbine type
F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas
F01K 15/02 - Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives
F01K 7/02 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of multiple-expansion type
F01K 7/12 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating characterised by the engine exhaust pressure of condensing type
F01K 11/02 - Steam engine plants characterised by the engines being structurally combined with boilers or condensers the engines being turbines
F01K 9/00 - Steam engine plants characterised by condensers arranged or modified to co-operate with the engines
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for
A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.
B60K 3/00 - Arrangement or mounting of steam or gaseous-pressure propulsion units
B60K 3/02 - Arrangement or mounting of steam or gaseous-pressure propulsion units of piston type
B60K 3/04 - Arrangement or mounting of steam or gaseous-pressure propulsion units of turbine type
F01K 21/04 - Steam engine plants not otherwise provided for using mixtures of steam and gasPlants generating or heating steam by bringing water or steam into direct contact with hot gas
B60L 11/12 - with additional electric power supply, e.g. accumulator
F01K 15/02 - Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives
F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours
F01K 7/16 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
F01K 7/36 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing typeUse of steam for feed-water heating the engines being of positive-displacement type
F01D 15/10 - Adaptations for driving, or combinations with, electric generators
F02C 1/02 - Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being an unheated pressurised gas
A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.
F01K 25/00 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for
F02C 1/02 - Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being an unheated pressurised gas
F01K 7/16 - Steam engine plants characterised by the use of specific types of enginePlants or engines characterised by their use of special steam systems, cycles or processesControl means specially adapted for such systems, cycles or processesUse of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
F01D 15/10 - Adaptations for driving, or combinations with, electric generators
F01K 15/02 - Adaptations of steam engine plants for special use for driving vehicles, e.g. locomotives
F01K 25/06 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using mixtures of different fluids
F01K 25/08 - Plants or engines characterised by use of special working fluids, not otherwise provided forPlants operating in closed cycles and not otherwise provided for using special vapours
A method and system for an external combustion engine operable using at least two different working fluids to be supplied to an engine to cause it to do mechanical work. The engine is started by providing a compressed gaseous working fluid at a sufficient pressure to the engine. At the same time the compressed gaseous working fluid is provided to the engine, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas form. Once the pressure is increased to a sufficient level, the second working fluid is injected into the engine to generate power, and the supply of the first working fluid may be stopped. After expansion in the engine, the working fluids are is exhausted from the engine, and the second working fluid may be condensed for separation from the first working fluid. The initial compressed fluid is recompressed for later use. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the engine.
A method and system for an external combustion engine operable using at least two different fluids to provide pressure volume work to an engine. The engine is started by providing a compressed fluid at a sufficient pressure to move internal components of the engine that in turn rotate a shaft to generate power. At the same time the compressed fluid is provided to the engine, a liquid fluid is provided to a heater to be heated. The liquid fluid is heated to its boiling point and converted to gas form. Additional heat is provided to increase the pressure of this gas fluid. Once the pressure is increased to a sufficient level, the gas fluid is injected into the engine to generate power. The gas is exhausted from the engine, and is cooled and separated back into the two separate fluids. The initial compressed fluid is recompressed for later use.
patents