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7578139 |
Refrigeration system including refrigeration cycle and rankine cycle
A controller reduces a rotational speed of a Rankine cycle from a predetermined normal rotational speed during an operation of a compressor in a predetermined state when the controller determines...
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7568342 |
Supply pump actuating turbine
A supply pump actuating turbine, in particular for a power plant, that includes at least two jet sectors for introducing a working gas into the turbine, a line system for connecting the at least...
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7546732 |
Dynamic combustion chamber
A system for converting potential energy into heat including a tower configured to contain a fluid and to permit the formation of a substantially nitrogen-free combustion chamber defined by the...
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7516620 |
Module-based oxy-fuel boiler
A boiler system for producing steam from water includes a plurality of serially arranged oxy fuel boilers. Each boiler has an inlet in flow communication with a plurality of tubes. The tubes of...
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7426832 |
Universal thermodynamic gas turbine in a closed Carnot cycle
A closed-cycle gas turbine power generator system with a combined cycle system with a neutral gaseous primary motive medium and a secondary phase change medium with a lower pressure sub-system...
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7392656 |
Steam turbine plant
A steam turbine plant includes an extraction system and a control system for controlling the steam extraction. The extraction system includes an extraction steam flowmeter and a stop valve. The...
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7325401 |
Power conversion systems
Power generation systems and methods are provided with features directed to various innovations including ones relating to the conversion of concentrated solar and biomass energy to electricity,...
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7124587 |
Heat exchange system
The invention is a system for heating hydrocarbon flows with three heat exchangers, wherein the first heat exchanger transfers heat from compressed heated air to a pressurized heat exchange fluid;...
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6782638 |
Method and device for supplying steam to the drying section in a papermaking machine
A method for increasing the drying capacity of a steam group ( 6 ) in a drying section of a pulp or paper machine. According to the method, a main steam flow ( 3 ) having a first steam pressure is...
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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...
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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...
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6145317 |
Steam turbine, steam turbine plant and method for cooling a steam turbine
A steam turbine with a steam inlet region, an exhaust-steam region and a blading region surrounded by a turbine housing and disposed axially therebetween. Furthermore, a cooling-fluid inlet is...
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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...
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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...
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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...
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6052996 |
Heat-work cycle for steam cycle electric power generation plants
A heat recovery apparatus and method suitable for steam cycle electrical generating plants including at the exhaust of a steam turbine one or more heat transfer units for capturing the heat in...
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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...
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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...
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6032468 |
Method and device for generating steam
A conventional steam power plant or a combined power plant is provided with intermediate superheating. At least part of the superheated steam in the superheater (3) and the intermediately...
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5570578 |
Heat recovery method and device suitable for combined cycles
A heat recovery method is disclosed suitable for combined gas turbine/steam turbine cycles including at the exhaust of a gas turbine a waste heat boiler in which water is first treated in a...
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5555731 |
Preheated injection turbine system
A power turbine system operating in an organic Rankine cycle with a thermodynamic medium flowing therethrough, including a power turbine (10) having an inlet connected to a conduit (50) and an...
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5440882 |
Method and apparatus for converting heat from geothermal liquid and geothermal steam to electric power
A method and apparatus for implementing a thermodynamic cycle that includes: (a) expanding a gaseous working stream, transforming its energy into usable form and producing a spent working stream;...
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5404724 |
Boiler feedpump turbine drive/feedwater train arrangement
An improved cycle arrangement for a steam turbine system in which an auxiliary turbine drives a boiler feedwater pump. The turbine system includes a primary turbine driving an electric power...
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5346592 |
Combined water purification and power of generating plant
A combined water purification and power generating plant is disclosed having special features designed to maximize the cycle thermal efficiency and salt recovery, with little or no concentrated...
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5149247 |
Single HP-MP internal stator for a steam turbine with controlled steam conditioning
The HP-MP steam turbine body has a single internal stator surrounding both the HP and the MP portions of the rotor. The internal stator co-operates with the external stator to define axial...
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5044163 |
Process and plant for generating steam using waste heat
In plants for generating steam using waste heat, the heat in the hot waste gases flowing through the steam generator must be utilized with maximum efficiency. To this end, the feed water is...
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4996846 |
Method of and apparatus for retrofitting geothermal power plants
An existing geothermal power plant, utilizing geothermal steam from a production well in a geothermal field to drive a multi-stage steam turbine when the available steam pressure from the...
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4953355 |
Steam turbine installation with adjusted bleeding
A steam turbine installation with bleeding adjusted to a predetermined pressure P, the installation driving a load and including a bleed outlet disposed between two successive stages, wherein the...
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4819436 |
Deaerator pressure control system
In a steam turbine power plant, a deaerator is heated and pressurized by extraction steam from the steam turbine for the purpose of preheating feedwater to the power plant boiler. Under certain...
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4799356 |
Synthesis gas generation complex and process
A synthesis gas-power generation complex is disclosed, the complex being characterized by ability to generate sufficient electrical power for internal use and for export, and by structure for...
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4753077 |
Multi-staged turbine system with bypassable bottom stage
An improved multi-stage turbine system is provided which includes a high pressure turbine stage assembly and at least one lower pressure turbine stage assembly. Each of these turbine assemblies...
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4715185 |
Method and means for increasing energy output and thermal efficiency of an energy cycle such as the Rankine steam cycle
Multi-stage extraction steam is taken at varying pressures from a mixed pressure turbine and sequentially charged into closed path conveyor compartments to progressively increase the pressure of...
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4628693 |
Casing for district heating turbine
IP or HP casing for a turbine designed for cogeneration of electric power and heat for district heating purposes, comprising blades carried by a rotor (31) rotating in a stator (32), an inlet steam...
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4624110 |
Fluid powered turbine
A turbine/power transmission system using pressure fluid, i.e., steam to selectively drive one of a plurality of turbine wheels depending upon the power/torque output and rotary direction required...
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4550569 |
Main steam inlet structure for steam turbine
A main steam inlet structure of a steam turbine has two inlet tubes which are separable from an inner casing and an outer casing of the turbine and are arranged concentrically with a spacing...
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4516403 |
Waste heat recovery system for an internal combustion engine
A feed water supply pump and a second control valve are provided in a water supply line system and a first control valve is provided at a second steam line. Further, a third control valve is...
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4471620 |
Turbine low pressure bypass spray valve control system and method
A bypass system for a steam turbine wherein the energy level of the steam bypassed around the intermediate pressure and low pressure turbines is modified by introduction of cooling water. The...
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4458493 |
Closed Rankine-cycle power plant utilizing organic working fluid
A closed Rankine-cycle power plant (10) has a boiler (24) for vaporizing an organic working fluid and a first nozzle box (58) for receiving vaporized working fluid from the boiler (24) and for...
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4448026 |
Turbine high pressure bypass pressure control system
A steam turbine system which includes a steam generator and a steam bypass path for bypassing steam around the turbine. The outlet throttle pressure of the steam generator is controlled by...
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4439687 |
Generator synchronization in power recovery units
There is disclosed a method and a control system for synchronizing the frequency of electrical current produced by a generator with the frequency of electrical current in an electric power grid so...
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4433545 |
Thermal power plants and heat exchangers for use therewith
A thermal power plant having multi-staged steam turbines and heat exchangers therebetween, each heat exchanger extracting heat from the supply to an upstream stage for adding heat to the supply of...
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4428190 |
Power plant utilizing multi-stage turbines
A power plant includes a steam boiler that delivers a rated amount of high-pressure steam at rated temperature and pressure to a steam turbine having a high-pressure stage and at least one...
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4407131 |
Cogeneration energy balancing system
A system is provided which improves the ability of cogeneration facilities to meet varying electrical power and process steam demands. One or more thermal boosting systems each having a Rankine...
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4403476 |
Method for operating a steam turbine with an overload valve
A method is disclosed for operating a steam turbine using turbine reserve capacity for attaining operation at elevated loads. In a preferred form of the invention, a bypass overload valve is...
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4389847 |
Method for the rapid increase in output of a steam turbine plant
A steam turbine plant capable of rapidly increasing its output in instances of sudden load jumps, by drawing the necessary process steam from a bleeding point of a turbine during normal operations,...
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4388807 |
Geothermal power extraction system with above surface heating of working fluid
In a geothermal energy conversion system of the type having a down-hole turbine pump unit driven by a heated working fluid, a heat exchanger is disposed at the surface of the earth for heating the...
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4387577 |
Boilers
A power plant forced-flow boiler operative with water letdown wherein the letdown water is arranged to deliver heat to partly expanded steam passing through a steam reheater connected between two...
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4373340 |
Peak load device of a multistage turbine
Peak load device of a multistage turbine, having a high pressure turbine section with an inlet pipe supplying working medium and an exhaust steam outlet, a subsequent turbine section having an...
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4352270 |
Method and apparatus for providing process steam of desired temperature and pressure
A method and apparatus for extracting steam from a steam turbine and adjusting the temperature and pressure for a process. Steam is extracted from the first section of the turbine and is throttled...
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4291537 |
Thermal energy storage for covering peak loads
To cover peak loads an auxiliary circuit having a water store which can be charged from the main circuit is connected to the main circuit of a thermal power station. The stored energy carrier is...
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