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| Number | Title | Issue Date |
| 7373904 | Stratified vapor generator A stratified vapor generator (110) comprises a first heating section (H1) and a second heating section (H2). The first and second heating sections (H1, H2) are arranged so that the inlet of the second heating sectio... | 05/20/2008 |
| 7331181 | Reheating steam temperature control A heat control system of reheating steam of a power plant, in which method the reheating steam (S3) is superheated in a reheater in a first reheating stage and a second reheating stage. The steam (S6) superheated in the first reheating stage is directe... | 02/19/2008 |
| 7318316 | Reheat/regenerative type thermal power plant using Rankine cycle A reheat-and-regenerating type thermal power plant (A) using Rankine cycle has a water feed bypass (BW) which supplies high temperature fluid (28) produced in a large incineration plant (27) to a heat exchanger (29) and by which confluent feed w... | 01/15/2008 |
| 7168233 | System for controlling steam temperature A system for controlling steam temperature that includes steam circuit including a reheater circuit, at least one reheater dilution region, at least one reheater dilution conduit, and at least one reheater supply region disposed upstream of the at least one reheater... | 01/30/2007 |
| 7124585 | Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander The present invention provides a scroll-type expander that simultaneously performs expansion and re-heating such that efficient expansion is realized and there is no reduction in efficiency caused by pressure loss occurring during the supply of an working fluid to t... | 10/24/2006 |
| 7062913 | Heat engine A heat engine (10) achieves operational efficiencies by: 1) recovering waste heat from heat engine expander (14) to preheat heat-engine working fluid, 2) using super-heated working fluid from compressor (402) to pre-heat heat-engine working flui... | 06/20/2006 |
| 7055326 | Single flow cascade power system A cascade power system is disclosed where a single basic working composition (BWC) of a multi-component working fluid stream is fully vaporized in a vaporization subsystem utilizing heat derived from a heat source stream such as a combustion gas stream and energy is... | 06/06/2006 |
| 7040095 | Method and apparatus for controlling the final feedwater temperature of a regenerative rankine cycle This invention relates to a method and apparatus for controlling the final feedwater temperature associated with a regenerative Rankine cycle, said cycle commonly used in thermal systems such as conventional power plants. This invention involves the placement of a n... | 05/09/2006 |
| 7007474 | Energy recovery during expansion of compressed gas using power plant low-quality heat sources A method of recovering energy from a cool compressed gas, compressed liquid, vapor, or supercritical fluid is disclosed which includes incrementally expanding the compressed gas, compressed liquid, vapor, or supercritical fluid through a plurality of expansion engin... | 03/07/2006 |
| 6964167 | Method for operating a steam power installation and corresponding steam power installation The invention relates to a method for operating a steam power installation, whereby steam produced in a boiler is condensed in a condenser after passing through at least one turbine, and the condensate obtained is preheated and redirected back to the boiler as boile... | 11/15/2005 |
| 6955051 | Steam generation apparatus and methods Steam generation apparatus and methods are presented that are dedicated to oxygen-enriched air combustion of a fuel, wherein the oxygen concentration of the oxygen-enriched air may range from just above 21 percent to 100 percent. One apparatus comprises an oxygen-en... | 10/18/2005 |
| 6951106 | Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control The present invention concerns an integration construction between a steam boiler provided with a combustion chamber and a steam turbine. The steam is conducted from the steam boiler (10) along a connector to the steam turbine (11) for rotating an elec... | 10/04/2005 |
| 6948315 | Method and apparatus for a waste heat recycling thermal power plant This invention, a waste heat recycling thermal power plant (1000), extracts heat from the environment, and concentrates this heat to produce a cfc super-ambient temperature heat source (1330) having an elevated temperature sufficient to supply a useabl... | 09/27/2005 |
| 6922999 | Single-winding multi-stage scroll expander A single-winding multi-stage expander comprises a fixed scroll and an orbiting scroll which revolves eccentrically with respect to the fixed scroll so as to pressurize a sealed chamber formed between the two scrolls to drive a crankshaft. A high-temperature pressuri... | 08/02/2005 |
| 6854273 | Apparatus and method for steam engine and thermionic emission based power generation system An apparatus and method for generating power, the apparatus, comprising: a steam engine for providing a first source of power, the steam engine also producing heat waste; a thermionic device for providing a second source of power, the thermionic device providing the... | 02/15/2005 |
| 6813888 | Integration construction between a boiler and a steam turbine and method in preheating of the supply water for a steam turbine and in its control The present invention concerns an integration construction between a steam boiler provided with a combustion chamber and a steam turbine. The steam is conducted from the steam boiler (10) along a connector to the steam turbine (11) for rotating an elec... | 11/09/2004 |
| 6742336 | Steam turbine power plant A steam turbine power plant comprises a high-pressure turbine to be driven by steam generated by a steam generator, a first reheater for separating moisture from steam discharged from the high-pressure turbine and heating the steam, an intermediate-pressure turbine ... | 06/01/2004 |
| 6705086 | Active thrust control system for combined cycle steam turbines with large steam extraction A combined cycle steam turbine including a system for providing process extraction steam includes a control system for counteracting the thrust effect of the steam extraction flow at the exhaust of the high pressure section of the steam turbine. The control system i... | 03/16/2004 |
| 6698204 | Steam generator plant Steam generator unit having a fluidized-bed combustion system, which has a fluidized-bed combustion chamber, at least one second gas pass, and at least one separator positioned between the fluidized-bed combustion chamber and second gas pass. The steam ge... | 03/02/2004 |
| 6647727 | Method for controlling a low-pressure bypass system In a method for controlling a steam turbine installation having a reheater (7) arranged between high-pressure turbine (2) and medium-pressure turbine (3) or low-pressure turbine (4), a low-pressure bypass (18) with a low-pressure bypass valve (19) also be... | 11/18/2003 |
| 6619041 | Steam generation apparatus and methods Steam generation apparatus and methods are presented that are dedicated to oxygen-enriched air combustion of a fuel, wherein the oxygen concentration of the oxygen-enriched air may range from just above 21 percent to 100 percent. One apparatus comprises a... | 09/16/2003 |
| 6516617 | Method for transforming heat using a vortex aggregate The aim of the invention is to reduce exhaust steam losses and thus efficiency losses in condensation power stations such that the steam does not expand to the attainable vacuum (as is the case in the prior art) but, after extraction from a turbine or the... | 02/11/2003 |
| 6497102 | Method for supplementing a saturated steam generation system having at least one steam turbine set, and steam power plant supplemented using the method A saturated steam generation system is supplemented with at least one gas turbine set, at least one heat recovery steam generator, at least one topping steam turbine and at least one steam mixing component. The topping steam turbine is coupled to the gas ... | 12/24/2002 |
| 6497099 | Method and device for controlling a steam turbine with a steam bleed A method for controlling a steam turbine with a steam bleed for various operational tasks is provided. The operational tasks are each characterized by the type of the controlled variables used for controlling the steam turbine. A control structure is used... | 12/24/2002 |
| 6422017 | Reheat regenerative rankine cycle Reheat of reheat regenerative steam power cycle increases its efficiency by increasing the average temperature of heat reception. In spite of such an increase in efficiency, reheating increases the irreversibility of feed water heaters by using superheate... | 07/23/2002 |
| 6269645 | Power plant The power plant according to the present invention improves the efficiency of conversion from thermal energy to electrical energy, and is provided with a first thermoelectric conversion element that generates electric power by using a difference in temper... | 08/07/2001 |
| 6233939 | Method of operating a steam power station In a steam power station, the condensate used as feedwater is preheated up close to the boiling temperature by means of partial steam mass flows from the turbine steam quantity. Due to the steam extraction, the following steam-turbine stages can draw less... | 05/22/2001 |
| 6223536 | Starting up a steam system, and steam system for carrying out the method A drum-type heat-recovery boiler (2) forms, together with the feedwater tank/deaerator (6) and condenser/hot well (4), the steam system of a combined-cycle power station. This steam system has a plurality of containers (10, 16, 22, 6, 4) working at differ... | 05/01/2001 |
| 6170264 | Hydrocarbon combustion power generation system with CO2 sequestration A low or no pollution engine is provided for delivering power for vehicles or other power applications. The engine has an air inlet which collects air from a surrounding environment. At least a portion of the nitrogen in the air is removed using a techniq... | 01/09/2001 |
| 6158221 | Waste heat recovery technique A waste heat recovery system includes a chamber. A gas inlet and gas outlet direct the flow of hot gas from a waste heat source to and from the chamber. A working fluid inlet port and working fluid outlet port direct the flow of multicomponent working flu... | 12/12/2000 |
| 6134891 | Method and device for quick power regulation of a power station system A quick power regulation for a power station system is achieved by activating energy storage mechanisms of the power station system process. The energy storage mechanisms are used to increase the generator power. At least the generator power and a thermal... | 10/24/2000 |
| 6125634 | Power plant A method for operating a power plant includes generating flue gas in a furnace of a fossil-fueled steam generator and generating steam for a steam turbine from heat contained in the flue gas. The steam is superheated prior to entry into the steam turbine ... | 10/03/2000 |
| 6109037 | Feed water heating system for power-generating plant A feed water heating system for heating a feed water for a power-generating plant having a steam turbine, a condenser and a steam generator, comprises: a steam injector unit for receiving a plurality of bled steams having different pressures extracted fro... | 08/29/2000 |
| 6105369 | Hybrid dual cycle vapor generation A vapor generator includes a first plurality of tubes configured to direct a multicomponent working fluid so as to be subjected to process heat from a direct fired source, and a second plurality of tubes configured to direct a single component working flu... | 08/22/2000 |
| 6085829 | Regenerator type heat exchanger Heat is exchanged between high and low temperature gases in a regenerator type of heat exchanger, wherein the high temperature gas is conducted through a high temperature passage formed in a housing, and the low temperature gas is conducted through a low ... | 07/11/2000 |
| 6076476 | Method of and apparatus for preventing emission of dioxins in incineration facility An apparatus for preventing the emission of dioxins in an incineration facility including an incinerator having a boiler, and an exhaust gas treatment facility for treating exhaust gas discharged from a flue of the boiler. This apparatus further includes ... | 06/20/2000 |
| 6052997 | Reheat cycle for a sub-ambient turbine system An improved combined cycle low temperature engine system is provided in which a circulating expanding turbine medium is used to recover heat as it transverses it turbine path. The recovery of heat is accomplished by providing a series of heat exchangers a... | 04/25/2000 |
| 6047549 | Power plant facility A power plant facility having gas turbines, steam turbines and mixed gas/steam turbines. By use of appropriate networking of the three turbine facilities, an approach to isothermal heat supply and removal is achieved with optimal utilization of waste heat... | 04/11/2000 |
| 6047548 | Gas and steam turbine plant and method for operating the same A gas and steam turbine plant includes a waste-heat steam generator disposed downstream of a gas turbine on the exhaust-gas side. The waste-heat steam generator has heating surfaces connected into a water-steam circuit of a steam turbine having a high-pre... | 04/11/2000 |
| 6035642 | Refurbishing conventional power plants for Kalina cycle operation A method is provided which refurbishes a Rankine cycle vapor generator initially having a plurality of Rankine heaters for supporting a Rankine cycle subsystem. The method removes at least one of the Rankine heaters, and replaces the at least one removed ... | 03/14/2000 |
