Class / Patent application number | Description | Number of patent applications / Date published |
060660000 | Having condition responsive control | 63 |
20090071156 | Waste heat recovery apparatus - A waste heat recovery apparatus including a Rankine cycle which includes a heater for heating an operation fluid by waste heat from a heat-generating device, an expansion unit for converting energy of expansion of the operation fluid flowing out from the heater into mechanical energy, and a condenser for condensing and liquefying the expanded operation fluid, a temperature detector for detecting the temperature of the operation fluid on the inlet side of the expansion unit, a pressure detector for detecting inlet-side pressure of the expansion unit, a pressure detector for detecting outlet-side pressure of the expansion unit, and a control unit. The control unit controls a command rotational speed of the expansion unit based on superheated degree information at the inlet of the expansion unit obtained from the operation fluid temperature and the inlet-side pressure, and pressure information in which the outlet-side pressure is considered. | 03-19-2009 |
20090094982 | POWER STATION COMPRISING A CONDENSER INSTALLATION FOR THE CONDENSATION OF WATER VAPOUR - The invention relates to a power station comprising a condenser installation ( | 04-16-2009 |
20090293478 | CONDENSER AND STEAM TURBINE POWER PLANT - A condenser that restrains fluctuations in the condenser vacuum in a power generating installation. | 12-03-2009 |
20100175378 | Method and apparatus for varying flow source to aid in windage heating issue at FSNL - A method and apparatus are disclosed for alleviating the problem of windage heating when flow, in a turbine running at full speed, no load, decreases greatly at the exhaust of the high pressure sections of the turbine. Valves connecting the different pressure levels of a heat recovery steam generator to the input of the turbine are adjusted to mix steam coming from the different pressure levels to create desired steam conditions at the inlet and the exhaust output of the turbine that allow the use of existing steam path hardware and thereby reduce the cost of such piping. In an alternative embodiment for a single pressure HRSG, high pressure saturated steam is extracted from the HSRG evaporator and then flashed into superheated steam when passing thru a control valve, that is then used to create the desired steam conditions at the inlet and the exhaust output of the turbine. | 07-15-2010 |
20100199672 | Condenser System - A method of substantially preventing contaminants from entering a condenser adapted for use within a steam generating system. A condenser is provided. Steam or a combination of water and steam is passed into the condenser, the condenser operating in a normal mode a pressure in a control area is equal to or greater than a predefined pressure and in a non-normal mode if the pressure in the control area is less than the predefined pressure. An inert gas is injected into the condenser if a pressure in the control area is less than a holding pressure, the holding pressure being equal to or greater than the predefined pressure. | 08-12-2010 |
20100205967 | PRE-HEATING GAS TURBINE INLET AIR USING AN EXTERNAL FIRED HEATER AND REDUCING OVERBOARD BLEED IN LOW-BTU APPLICATIONS - In certain embodiments, a system includes an air heating system. The air heating system is configured to heat air with waste heat generated by a waste heat source external to a turbine engine. The air heating system is also configured to deliver the heated air to a compressor of the turbine engine. | 08-19-2010 |
20110041504 | METHOD AND SYSTEM FOR INCREASING MODIFIED WOBBE INDEX CONTROL RANGE - A system and method for controlling the temperature of a fuel gas. The system and method includes mixing an intermediate pressure feedwater stream from the heat recovery steam generator with a high pressure feedwater stream from the heat recovery steam generator, then using that mixture to heat the fuel gas mixture. The system and method may provide for improved control over the Modified Wobbe Index of the fuel gas, which may allow for greater variation in the composition of the fuel gas. | 02-24-2011 |
20110041505 | Waste Heat Utilization Device for Internal Combustion Engine - A waste heat utilization device ( | 02-24-2011 |
20110120130 | Fossil Fuel Combustion Thermal Power System Including Carbon Dioxide Separation and Capture Unit - A fossil fuel combustion thermal power system including a carbon dioxide separation and capture unit comprising a fossil fuel combustion thermal power system including a boiler for burning fossil fuel and generating steam and a steam turbine including a high-pressure turbine driven by the steam generated by the boiler for generating power, and a carbon dioxide separation and capture unit. | 05-26-2011 |
20110126540 | HIGH-STRENGTH HEAT RESISTING CAST STEEL, METHOD OF PRODUCING THE STEEL, AND APPLICATIONS OF THE STEEL - A high-strength heat resisting cast steel which has high creep rupture strength at temperatures of 620° C. or above, high toughness, and good weldability. A method of producing the steel, a steam turbine casing, a main steam valve casing, and a steam control valve casing, each casing being made of that steel, as well as a steam turbine power plant using those components are also provided. The high-strength heat resisting cast steel contains 0.06-0.16% by mass of C, 0.1-1% of Si, 0.1-1% of Mn, 8-12% of Cr, 0.1-1.0% of Ni, 0.7% or less of Mo, 1.9-3.0% of W, 0.05-0.3% of V, 0.01-0.15% of one or more of Nb, Ta and Zr in total, 0.1-2% of Co, 0.01-0.08% of N, and 0.0005-0.01% of B, the balance being Fe and unavoidable impurities. | 06-02-2011 |
20110203278 | AUTO OPTIMIZING CONTROL SYSTEM FOR ORGANIC RANKINE CYCLE PLANTS - A waste heat recovery plant control system includes a programmable controller configured to generate expander speed control signals, expander inlet guide vane pitch control signals, fan speed control signals, pump speed control signals, and valve position control signals in response to an algorithmic optimization software to substantially maximize power output or efficiency of a waste heat recovery plant based on organic Rankine cycles, during mismatching temperature levels of external heat source(s), during changing heat loads coming from the heat sources, and during changing ambient conditions and working fluid properties. The waste heat recovery plant control system substantially maximizes power output or efficiency of the waste heat recovery plant during changing/mismatching heat loads coming from the external heat source(s) such as the changing amount of heat coming along with engine jacket water and its corresponding exhaust in response to changing engine power. | 08-25-2011 |
20110277478 | Electronic probe housing and automatic shutoff for steam turbine - An electronic probe housing having two speed pick up devices automatically sends electric signals to an electronic governor which causes the RPM of the steam turbine to increase, decrease or remain constant, in conjunction with one or more additional speed pick up devices in the same probe housing which uses a logical array of electro-hydraulic solenoid valves to control an automatic shut off system which cuts off the steam supply to the steam turbine. | 11-17-2011 |
20120011852 | STEAM TURBINE FLOW ADJUSTMENT SYSTEM - A steam turbine flow adjustment system is disclosed. In one embodiment, the system includes a steam turbine having a first inlet port and a second inlet port for receiving inlet steam; a first conduit and a second conduit operably connected to a first valve and a second valve, respectively, the first conduit and the second conduit for providing the inlet steam to the first inlet port and the second inlet port, respectively; and a control system operably connected to the first valve and the second valve for controlling an amount of inlet steam flow admitted and pressure to each of the first inlet port and the second inlet port based upon a load demand on the steam turbine and an admission pressure of the inlet steam. | 01-19-2012 |
20120023946 | EMISSIONS-CRITICAL CHARGE COOLING USING AN ORGANIC RANKINE CYCLE - The disclosure provides a system including a Rankine power cycle cooling subsystem providing emissions-critical charge cooling of an input charge flow, which includes at least one of an exhaust gas recirculation (EGR) source and a charge air source, upstream of an intake internal combustion engine. The system includes a boiler fluidly coupled to the input charge flow and adapted to transfer heat from the input charge to a working fluid of the Rankine power cycle subsystem and vaporize the working fluid, an energy conversion device fluidly coupled to the boiler and adapted to receive vaporized working fluid and convert the energy of the transferred heat, a condenser fluidly coupled to the energy conversion device and adapted to receive the working fluid from which the energy was converted, a pump having an inlet fluidly coupled to an outlet of the condenser and an outlet fluidly coupled to an inlet of the boiler, said pump adapted to move fluid from the condenser to the boiler, an adjuster that adjusts at least one parameter of the Rankine power cycle subsystem to change a temperature of the input charge exiting the boiler, and a sensor adapted to sense a temperature characteristic of the vaporized input charge. The system includes a controller that can determine a target temperature of the input charge sufficient to meet or exceed predetermined target emissions and cause the adjuster to adjust at least one parameter of the Rankine power cycle to achieve the predetermined target emissions. | 02-02-2012 |
20120073293 | STEAM TURBINE VALVE HAVING INTEGRAL PRESSURE CHAMBER - A steam turbine valve having an integral pressure chamber is disclosed. In one aspect of the invention, the valve for supplying steam includes a valve body; and a pressure chamber substantially contained within a wall of the valve body, the pressure chamber having an inlet for receiving a pressurized fluid. | 03-29-2012 |
20120073294 | RANKINE CYCLE SYSTEM - A Rankine cycle system mounted on a vehicle includes a Rankine cycle circuit, a pressure detector, a temperature detector and a controller. The Rankine cycle circuit includes a fluid expansion device, a fluid transferring device, first and second passages, a heater, a cooling device, a bypass passage and a flow regulating valve. The bypass passage connects the first passage and the second passage, and in which the flow regulating valve is provided for opening and closing the bypass passage. The controller is connected to the flow regulating valve for controlling an operation of the flow regulating valve and to the pressure and temperature detectors and for receiving signals of pressure and temperature from the pressure and temperature detectors, respectively. The controller controls the operation of the flow regulating valve based on a superheat degree of the working fluid calculated from the signals of the pressure and temperature. | 03-29-2012 |
20120073295 | RANKINE CYCLE SYSTEM - A Rankine cycle system mounted on a vehicle has a Rankine cycle circuit through which working fluid circulates, a power generator, a power storage and a controller. The Rankine cycle circuit includes a fluid expansion device, a fluid transferring device, first and second passages, a heater, a cooling device, a bypass passage and a flow regulating valve. The bypass passage connects the first passage to the second passage. The flow regulating valve is provided in the bypass passage for opening and closing the bypass passage. The power generator converts the work generated by the fluid expansion device into electric power. The controller monitors charge rate of the electric power charged in the power storage and controls an operation of the flow regulating valve based on the monitored charge rate. The controller causes the flow regulating valve to be opened when the monitored charge rate is greater than a predetermined value. | 03-29-2012 |
20120096864 | AIR COOLED CONDENSER FOGGING CONTROL SYSTEM - Certain embodiments of the invention may include systems, methods, and apparatus for controlling turbine steam output. According to an example embodiment of the invention, a method is provided for controlling steam turbine output. The method can include measuring one or more temperatures or back pressures associated with one or more cells associated with a turbine cooling condenser and controlling temperature distribution of the one or more cells in response, at least in part, to the measured one or more temperatures or back pressures. | 04-26-2012 |
20120117970 | Hydraulic Pressure Transducer and Hydraulic System - The present invention relates to a pressure transducer for transforming a pressure of a fluid from one pressure level to another, comprising at least one pair of hydraulic rotating machines that are mutually mechanically interconnected in such a way that a first machine in a first pair of said at least one pair can run a second machine in the same first pair. Said first pair of machines is mounted in a first substantially closed room and each one of said first and second machines is in hydraulic connection with said first room. The present invention also relates to a hydraulic system for transferring hydraulic energy. | 05-17-2012 |
20120137688 | VALVE DEVICE AND A STEAM TURBINE SYSTEM INCORPORATING SAID VALVE DEVICE - A valve device incorporating two valves is provided. For example the two valves could be a stop valve and a control valve, housed in the same side of a common casing. The proposed valve device includes an inlet port and an outlet port connected by a fluid flow channel. The valve device further includes a first valve and a second valve housed in a common casing. The first valve includes a first valve head mounted on an annular-shaped first spindle. The second valve includes a second valve head mounted on a second spindle, the second spindle extending concentrically and slidably through the annular-shaped first spindle. The first and second valves are displaceable along a common axis and operable to influence fluid flow between the inlet port and the outlet port through the flow channel. | 06-07-2012 |
20120151925 | METHOD AND SYSTEM FOR CONTROLLING A VALVE OF A TURBOMACHINE - A method and a system for limiting steam flow entering a steam turbine are provided. The method and system may intentionally unbalance the steam flow apportioned between sections of the steam turbine. The steam turbine comprises at least: a first section, a second section, and a rotor disposed within each section. The method may receive a speed/load command, or the like, which provides reference strokes for a first valve, associated with the first section; and a second valve, associated with the second section. The method may also determine an operational parameter that may limit the reference strokes relative to the speed/load command. The operational parameter may determine the allowable steam flow for each section of steam turbine, independent of the speed/load command. | 06-21-2012 |
20130000303 | LOW DIFFERENTIAL TEMPERATURE ROTARY ENGINES - An engine is configured to extract energy from a heat source as follows. A shaft is adapted to be rotatably coupled to a support and rotatable in a first direction. A plurality of vessels is coupled to and arranged about the shaft. At least a first vessel of the plurality of vessels includes a thermally insulative portion and a thermally conductive portion. A plurality of conduits connects the plurality of vessels together. Each of the plurality of vessels is in communication with at least one other of the plurality of vessels via at least one of the conduits. The plurality of vessels is arranged to allow the thermally conductive portion of the first vessel to encounter the heat source. The thermally conductive portion is capable of transferring heat to at least partially vaporize volatile fluid within the first vessel to cause a mass to at least partially move towards a connected vessel located above the first vessel. This produces a gravitational moment that encourages rotation of the shaft and the plurality of vessels in the first direction. | 01-03-2013 |
20130192229 | METHOD FOR OPERATING A COMBINED GAS AND STEAM TURBINE SYSTEM, GAS AND STEAM TURBINE SYSTEM FOR CARRYING OUT SAID METHOD, AND CORRESPONDING CONTROL DEVICE - A method of operating a combined gas and steam turbine system is provided. The system includes a gas turbine, a waste heat steam generator with an evaporator heating area, and a steam turbine. Fluid is fed to the waste heat steam generator as feed water. A primary control loop controls a feed water flow rate. Taking into account heat stored in the evaporator heating area, a primary desired value for the feed water flow rate is determined based upon a desired overheating value characteristic of a temperature by which the fluid exceeds a boiling point as the fluid exits the evaporator heating area and based upon a heat flow parameter characteristic of a heat flow transfer from fuel gas to the fluid via the evaporator heating area. The desired overheating value is lowered from a first value to a second value in order to activate an instantaneous power reserve. | 08-01-2013 |
20130205783 | STEAM TURBINE - The invention relates to a steam turbine (10), in particular for using the waste heat of an internal combustion engine (2), comprising at least one rotor (26) and at least one stator (20), said stator (20) comprising at least two nozzles (22) which are arranged in parallel in relation to each other. The nozzles (22) are designed for different load points of the rotor (26) and can be switched on and off independently from each other. | 08-15-2013 |
20140000260 | PROTECTION DEVICE FOR TURBINE EXHAUST CHAMBER AND CONDENSER AND MONITORING CONTROLLER FOR TURBINE EXHAUST CHAMBER AND CONDENSER | 01-02-2014 |
20140047840 | STEAM FLOW CONTROL SYSTEM - Systems and methods for model based steam flow control to and/or through a steam turbine component are disclosed. In one embodiment, a system includes: at least one computing device configured to control a steam flow in a power generation system by performing actions comprising: generating a flow model for the steam flow based at least in part on operational data about the steam flow in the power generation system; and adjusting a characteristic of the steam flow based upon the flow model. | 02-20-2014 |
20140116051 | RANKINE CYCLE - A Rankine cycle where, in a circulation path of a working fluid, a heat exchanger exchanging heat between the working fluid and a heat medium, an expander, a condensing unit and a pumping device are provided in order, includes a temperature detector detecting the temperature of the working fluid flowing out of the heat exchanger, a pressure detector detecting the pressure of the working fluid flowing through the heat exchanger, a flow rate adjusting unit for adjusting the working fluid flow rate to the heat exchanger and a control device controlling the adjusting unit. The control device controls to change the temperature and pressure of the working fluid sucked into the expander while satisfying the relationship along the target pressure line TPL where the target pressure is set to increase the working fluid density following the increase in the working fluid temperature. | 05-01-2014 |
20140260253 | THERMAL ENERGY CONVERSION SYSTEM FOR REGASIFICATION OF CRYOGENIC LIQUIDS - Systems and methods for cryogenic thermal energy conversion that include the use of a heat engine in the regasification process for cryogenic liquids such that energy is created while regasifying the cryogenic liquid and no additional heat component is required. | 09-18-2014 |
20150107252 | RANKINE CYCLE APPARATUS - A Rankine cycle apparatus ( | 04-23-2015 |
20150107253 | Exhaust Heat Recovery Device - An exhaust heat recovery device provided with a Rankine cycle, capable of preventing opportunities for actuating the Rankine cycle from being decreased and capable of efficiently operating the Rankine cycle. An exhaust heat recovery device | 04-23-2015 |
20150128596 | STEAM TURBINE BLADE VIBRATION MONITOR BACKPRESSURE LIMITING SYSTEM AND METHOD - A blade vibration monitor backpressure limiting system (BVMBLS), that in addition to direct blade vibration and condenser backpressure monitoring utilizes other plural types of other parallel, real time monitored power plant operation state (OS) information that influences blade vibration. The system references previously stored information in an information storage device that associates respective types of monitored OS information with blade vibration. The BVMBLS determines in real time a likelihood of whether any of the monitored operation states, alone or in combination with other types of monitored operation states, is indicative of a turbine blade vibration safe operation (SO). The BVMBLS determination is utilized to increase or reduce power generation load incrementally so that power efficiency and maximum load is enhanced while turbine blade vibration is maintained in a safe operation state. The previously stored information is updated to new association information. | 05-14-2015 |
20150135712 | Activation Control Device - A steam turbine plant activation control device is provided, which generates an activation schedule that enables a reduction in a time period required for the activation of a steam turbine plant without complex calculation such as prediction and calculation of a temperature and calculation of thermal stress. The activation control device includes: a storage circuit for storing a correlation between an initial value of a state amount parameter and a plant operation amount which includes a control reference value related to a control target amount and time lengths of phases in a process of activating the steam turbine plant; an operation amount determination circuit for determining time lengths of phases and a control reference value based on the initial value of the state amount parameter and the correlation stored in the storage circuit; and an activation schedule circuit configured to generate activation schedules of the phases based on the phase time lengths and the control reference value, which are determined by the operation amount determination circuit, and generate an activation schedule for a time period from the start to the completion of the activation of the steam turbine plant by combining the activation schedules. | 05-21-2015 |
20150322812 | STEAM VALVE AND STEAM TURBINE - Provided is a steam valve ( | 11-12-2015 |
20150337690 | HEAT ENERGY RECOVERY DEVICE - A heat energy recovery device | 11-26-2015 |
20150345340 | POWER GENERATION SYSTEM - This power generation system ( | 12-03-2015 |
20160017756 | CONDENSER AND STEAM TURBINE PLANT PROVIDED THEREWITH - This condenser is provided with the following: a set of heat-transfer tubes; a main body that covers the heat-transfer tubes; an intermediate body that forms a primary steam passage for guiding exhaust steam from a steam turbine to the set of heat-transfer tubes; and a bypass steam receiving section that receives bypass steam, i.e. steam that has bypassed the steam turbine, and guides the bypass steam to the set of heat-transfer tubes. The bypass steam receiving section is located outside the primary steam passage, and an opening in the main body that is opposite to the bypass steam receiving section is formed at a position where the bypass steam flows into the set of heat-transfer tubes mainly from a region different from an inflow region through which the exhaust steam mainly flows into the set of heat-transfer tubes via the primary steam passage. | 01-21-2016 |
20160076404 | PLANT CONTROL APPARATUS AND COMBINED CYCLE POWER PLANT - In one embodiment, a combined cycle power plant includes first and second superheaters to generate first and second main steams, first and second reheaters to heat first and second discharge steams to generate first and second reheat steams, and a steam turbine to be supplied with the merged first and second reheat steams. The plant further includes a first valve to adjust a flow rate of the first discharge or reheat steam, and a second valve to adjust a flow rate of the second discharge or reheat steam. A plant control apparatus includes a determination module to determine a target opening degree of the second valve by using flow rates of the first and second main steams, and a controller to compare the determined target opening degree with a valve opening degree of the second valve and to control the second valve based on a comparison result. | 03-17-2016 |
20160125965 | Power Plant - A power plant includes a steam generator, a turbine driven by steam generated by the steam generator, a condenser which cools the steam discharged from the turbine to form condensate water by using seawater, a condensate water pipe which supplies the condensate water from the condenser to the steam generator, at least one seawater leak detection device which is included in the condensate water pipe and measures water quality of the condensate water to detect a leak of seawater in the condenser, an attemperator spray which connects to the condensate water pipe to be supplied with the condensate water from a connecting point where the attemperator spray connects to the condensate water pipe, and sprays the condensate water to the steam inside the condenser, and a pipe which diverges from the condensate water pipe and supplies the condensate water to the steam generator, wherein if the seawater leak detection device detects a leak of the seawater in the condenser, the power plant stops pouring the condensate water from the connecting point to the steam generator and stops pouring the condensate water to the pipe diverging from the condensate water pipe. | 05-05-2016 |
060661000 | Of or by heat rejecting means or its bypass | 9 |
20100107636 | PROVISION FOR RAPID WARMING OF STEAM PIPING OF A POWER PLANT - A steam power plant, in which steam from a steam generator is received by a steam turbine, is provided and includes a conduit, a main steam control valve (MSCV) disposed along the conduit to admit the steam to the steam turbine when a characteristic thereof satisfies a threshold, a bypass line, coupled to the conduit between a super-heater and a valve, including a bypass line valve which is opened until the threshold is satisfied such that the bypass line removes a portion of the steam, an evacuator line, coupled to the conduit between the MSCV and the steam turbine, including an evacuator valve which is opened to regulate a thermal environment within the steam turbine during a start up thereof, and a warming line originating between the valve and the MSCV on the conduit and terminating downstream of the evacuator valve disposed along the evacuator line. | 05-06-2010 |
20110088397 | WASTE HEAT RECOVERY SYSTEM - The waste heat recovery system of an engine includes a Rankine cycle, a first bypass passage, a first valve and a control unit. The Rankine cycle allows a working fluid to circulate therethrough. The Rankine cycle has a first heat exchanger, a second heat exchanger, an expander and a condenser. The first heat exchanger exchange heat between the working fluid and the engine or a first intermediate medium exchanging heat with the engine. The first bypass passage allows the working fluid to pass therethrough. One end of the first bypass passage is located at an upstream side of the condenser and the other end is located at a downstream side of the condenser. The first valve opens and closes the first bypass passage. When temperature of the engine or the first intermediate medium is lower than a first predetermined value, the control unit opens the first valve. | 04-21-2011 |
20110146279 | Steam turbine system for a power plant - A steam turbine system for a power generating plant is provided. The steam turbine in the system has a live steam control valve at its live steam inlet, an extraction steam outlet, a live steam bypass line with a throttle valve which is connected to the inlet of the live steam control valve and also to the extraction steam outlet for directing live steam, which is throttled with the throttle valve, from upstream of the live steam control valve to the extraction steam outlet. The steam turbine with the live steam control valve and the live steam bypass line with the throttle valve are designed such that the steam turbine can be operated both in the nominal operating state with 100% live steam mass flow and in a special operating state with live steam mass flow above 100%, with a fully open live steam control valve in each case. | 06-23-2011 |
20110308253 | DUAL CYCLE RANKINE WASTE HEAT RECOVERY CYCLE - A dual cycle waste heat recovery system includes a high-temperature circuit that utilizes a first working fluid. The first working fluid is heated by a first waste heat source and then expanded through a first expander to produce power. The heat recovery system further includes a low-temperature circuit that utilizes a second working fluid. The low-temperature circuit also includes a first heat exchanger for heating the second working fluid with heat from the first working fluid and a second heat exchanger for heating the second working fluid with heat from a second waste heat source. A control valve selectively controls the flow of the second working fluid to each of the first and second heat exchangers according to a predetermined set of parameters. An expander receives the second working fluid from the first and second heat exchangers and expands the second working fluid to produce power. | 12-22-2011 |
20110314817 | SYSTEM FOR CONTROLLING THRUST IN STEAM TURBINE - A system controls net thrust of a steam turbine having a stepped rotating shaft. A first leak off line fluidly couples a first stage of a turbine section to a packing upstream of a stepped portion on the rotating shaft. A second leak off line fluidly couples a second stage of the turbine section that is subsequent to the first stage to a step area upstream of the stepped portion, and a connection line fluidly couples the first leak off line to the second leak off line. The lines include control valves such that a controller can actively control the net thrust by regulating thrust pressure on the stepped portion using steam from the first and second stages of the turbine section. The controller may also prevent damage to an active retractable seal using the control valves. | 12-29-2011 |
20140318131 | HEAT SOURCES FOR THERMAL CYCLES - Systems, methods, and apparatuses are directed to monitoring a capacity at which an engine is operating, the engine comprising a turbocharger. It can be determined whether the engine is operating above a threshold capacity. If the engine is operating above a threshold capacity, a closed-loop thermal cycle working fluid can be heated with heated air from the turbocharger. If the engine is operating at or below a threshold capacity, the working fluid can be heated with exhaust from the engine. The heated working fluid can be directed to a turbine generator, which can generate electrical power. | 10-30-2014 |
20150135713 | STEAM TURBINE SYSTEM AND CONTROL SYSTEM THEREFOR - Steam turbine system and control system therefor are provided. In one embodiment, a steam turbine system includes an auxiliary turbine in fluid communication with an IP turbine via an auxiliary turbine inlet conduit branch of an IP exhaust conduit. A heat exchanger system may remove heat from an IP exhaust steam, and may add the removed heat to water flowing through a boiler feed-water conduit to a boiler of the steam turbine system. | 05-21-2015 |
20150369085 | EVAPORATOR, RANKINE CYCLE APPARATUS, AND COMBINED HEAT AND POWER SYSTEM - An evaporator which heats working fluid with high-temperature fluid to evaporate the working fluid includes: a working fluid channel which is arranged in a flow direction of the high temperature fluid and through which the working fluid flows; and a temperature sensor which is provided for the working fluid channel. A part of the working fluid channel is exposed to outside of a housing of the evaporator, and the temperature sensor is provided in the part of the working fluid channel exposed to the outside of the housing of the evaporator in a region other than an inlet of the working fluid channel into which the working fluid flows from the outside of the evaporator and other than an outlet of the working fluid channel through which the working fluid flows out of the evaporator. The output value of the temperature sensor is used to adjust the temperature of the working fluid in the evaporator. | 12-24-2015 |
20160186616 | THERMAL ELECTRIC POWER GENERATOR - A thermal electric power generator includes an evaporator, an expander, an electric generator, a condenser, and a pump. A working fluid used in the thermal electric power generator is an organic working fluid. The evaporator includes a heat exchanger, a bypass channel, and a flow rate adjustment mechanism. The bypass channel allows a heat medium to bypass the heat exchanger. The flow rate adjustment mechanism adjusts a flow rate of the heat medium to be supplied to the heat exchanger and a flow rate of the heat medium to be supplied to the bypass channel. | 06-30-2016 |
060662000 | Involving feed from source means to separate motor stages or utilizing means | 1 |
20120111009 | SYSTEM FOR COOLING SYNGAS - A system includes a syngas cooler configured to cool a syngas. The syngas cooler includes a first syngas cooler section configured to cool the syngas and a second syngas cooler section configured to cool the syngas and generate a first superheated steam with an enthalpy of less than approximately 3800 kJ/kg. | 05-10-2012 |
060663000 | Of branched feed to, condition of, or heating means for motive fluid between motor stages | 5 |
20090025389 | Turbine Systems and Methods for Using Internal Leakage Flow for Cooling - A cooling system for a turbine with a first section and a second section. The first section may include a first line for diverting a first flow with a first temperature from the first section, a second line for diverting a second flow with a second temperature less than the first temperature from the first section, and a merged line for directing a merged flow of the first flow and the second flow to the second section. | 01-29-2009 |
20110247333 | DOUBLE FLOW LOW-PRESSURE STEAM TURBINE - A double flow low-pressure (LP) steam turbine with an LP section that can be engaged and disengaged from a drive train is provided, as are methods for its use. In one embodiment, the invention provides a steam turbine comprising: a high pressure (HP) section; an intermediate pressure (IP) section adjacent the HP section; a first low pressure (LP) section; a second LP section; a crossover pipe connecting the IP section to the first LP section and the second LP section; a drive train extending through the HP section, the IP section, the first LP section, and the second LP section; a device for engaging and disengaging the second LP section from the drive train; a valve for alternately opening and closing a portion of the crossover pipe connecting the IP section to the second LP section; and at least one extraction port for extracting a quantity of steam from at least one of the following: the crossover pipe or an exhaust of the IP section. | 10-13-2011 |
20140020387 | POWER GENERATING SYSTEM - In one embodiment, a power generating system includes; a flow dividing unit configured to divide a first heat medium supplied thereto to a first flow path and a second flow path; and a heat accumulating unit configured to accumulate the first heat medium sent thereto via the second flow path and deliver the first heat medium at a temporally leveled flow rate. The system further includes: a heat exchanging unit configured to transfer heat from the first heat medium sent thereto via the first flow path and the first heat medium delivered thereto from the heat accumulating unit, to a second heat medium that is lower in boiling point than the first heat medium; and a turbine configured to rotationally move with the second heat medium to which heat has been transferred by the heat exchanging unit. | 01-23-2014 |
20140250886 | Rankine Cycle - The Rankine cycle ( | 09-11-2014 |
20150059343 | ACTIVE COLD-REHEAT TEMPERATURE CONTROL SYSTEM - Various embodiments of the invention include systems for controlling cold-reheat extraction in a turbomachine system. Some embodiments include a system having: a high-pressure (HP) turbine section including an exhaust; a reheater conduit fluidly connected with the exhaust of the HP turbine and a reheater, the reheater conduit for passing HP exhaust steam from the HP turbine section to the reheater; a cold-reheat extraction conduit fluidly connected with the reheater conduit upstream of the reheater and downstream of the HP turbine section exhaust; and a control system coupled with the HP turbine section and the cold-reheat extraction conduit, the control system configured to: obtain data about a temperature of the HP exhaust steam; and provide instructions to modify a flow rate of the HP exhaust steam to the reheater in response to the temperature of the HP exhaust steam exceeding a threshold. | 03-05-2015 |
060664000 | Of or by heat source material or element | 6 |
20100132361 | THERMOSTATIC VALVE WITH SLEEVE, THERMAL ENGINE ASSOCIATED WITH A COOLING CIRCUIT INCLUDING SUCH VALVE AND METHOD FOR MAKING THE SLEEVE FOR SUCH VALVE - According to the invention, the thermostatic valve ( | 06-03-2010 |
20110162367 | WASTE HEAT RECOVERY TURBINE SYSTEM - Provided is a waste heat recovery turbine system capable of lowering the temperature of hot water returned to a heat source and of suppressing a steaming phenomenon in a preheater without changing the flow rate of a heating medium flowing through an evaporator. The waste heat recovery turbine system comprises a turbine | 07-07-2011 |
20130180244 | Model-Free Adaptive Control of Supercritical Circulating Fluidized-Bed Boilers - A novel 3-Input-3-Output (3×3) Fuel-Air Ratio Model-Free Adaptive (MFA) controller is introduced, which can effectively control key process variables including Bed Temperature, Excess O2, and Furnace Negative Pressure of combustion processes of advanced boilers. A novel 7-input-7-output (7×7) MFA control system is also described for controlling a combined 3-Input-3-Output (3×3) process of Boiler-Turbine-Generator (BTG) units and a 5×5 CFB combustion process of advanced boilers. Those boilers include Circulating Fluidized-Bed (CFB) Boilers and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers. | 07-18-2013 |
20140260254 | Steam Turbine Power Plant - A steam turbine power plant includes heat-source equipment that heats a low-temperature flow by applying a heat medium and thus generates a high-temperature flow, a steam generator using the high-temperature flow generated by the heat-source equipment, a steam turbine driven by the steam generated by the steam generator, an electric generator that converts rotational motive power of the steam turbine into electric power, a heat-medium controller that controls a supply rate of the heat medium supplied to the heat source equipment, a low-temperature flow controller that controls a supply rate of the low-temperature flow supplied to the heat-source equipment, a prediction device that predicts startup constraints of the steam turbine from control input variables of the controllers when the steam turbine is started, and a control input variables setter so as to prevent data predictions by the prediction device from exceeding limit values of startup constraints. | 09-18-2014 |
20140360192 | Systems and Methods for Electric and Heat Generation from Biomass - A system for producing energy and heat from biomass is disclosed. The system includes a feed system, a gasifier, a thermal fluid oil heater, and a generator based on the organic Rankine cycle (ORC). The system may also include a controller that takes input from a number of sensors and controls, among other things, the rate at which fuel is fed into the system and the speed of fans and pumps that draw the products from one apparatus into the next. In this system, the biomass is fed into the gasifier, the resulting producer gas is flared and used to heat an oil in the thermal fluid oil heater, and the hot oil is used to provide input heat for the ORC generator. Methods for controlling such a system are also disclosed. | 12-11-2014 |
060665000 | And of or by boiler liquid level or feed | 1 |
20130000304 | POWER GENERATION APPARATUS - In a power generation apparatus, a working medium is evaporated in an evaporator using a heating medium supplied from outside, and the evaporated working medium is subsequently introduced into an expander, which is connected to an electric generator, to convert a thermal expansion force of the working medium into a rotation force inside the expander for generation of electric power. Then, the working medium exhausted from the expander is fed into a condenser in which the working medium is condensed by cooling the working medium with a coolant medium supplied from outside, and the condensed working medium is pressurized by a circulating pump to resupply the evaporator with the pressurized working medium. In the power generation apparatus, when a condensing pressure in the condenser is high, a rotational speed of the circulating pump and a suction volume of the evaporator are increased. | 01-03-2013 |
060666000 | Of bypass of superheater or desuperheater | 1 |
20100307155 | Waste Heat Utilization Device for Internal Combustion Engine - Control means ( | 12-09-2010 |
060667000 | Of means controlling boiler or its feed | 3 |
20120227406 | Thermal Power Plant, Steam Turbine and Control Method for a Thermal Power Plant - A thermal power plant includes a boiler for burning fossil fuel to generate steam, a steam turbine including a high-pressure turbine, an intermediate-pressure turbine, and a low-pressure turbine which are driven by steam generated in the boiler, an absorber for absorbing and capturing CO | 09-13-2012 |
20120312021 | POWER GENERATION APPARATUS - A power generation apparatus that suppress cavitation includes a first on/off valve provided between a steam generator and an expander in a circulating channel; a bypass channel connected between an area between the steam generator and the first on/off valve and an area between the expander and a condenser; a second on/off valve provided in the bypass channel; a third on/off valve provided between a pump and the steam generator; and a controller. When stopping the pump, the controller outputs a control signal that stops the pump, a control signal that closes the first on/off valve, a control signal that opens the second on/off valve, and a control signal that closes the third on/off valve. In the case where a predetermined condition has been met, the controller outputs a control signal that closes the second on/off valve. | 12-13-2012 |
20140033715 | MAIN STREAM TEMPERATURE CONTROL SYSTEM FOR LARGE BOILER - A main stream temperature control system for a large boiler comprises a PID module, A/D converters (M2, M3, M4, and M5), D/A converters (M6 and M7), electrical water spray adjusting valves (AA101 and AA102) and main stream temperature sensors (T1, T2, T3, and T4) for the boiler. The system uses a function module (f (x)), a differential module, a division module, multiplication modules (F1 and F2), addition and subtraction modules (J1, J2, J3, and J4), set value modules (K1-K6), selection modules (N1 and N2), a time pulse module (S1) and small value comparison modules (Z1 and Z2) in a distributed control system, so as to construct a real-time online optimized circuit and form an independent automatic control system for dynamic tracking and stable control, thereby increasing the thermal economic index of the boiler, and achieving the objective of energy saving and emission reduction. | 02-06-2014 |