Abstract: A condensing equipment including a plurality of condensers having shells different in longitudinal lengths are arranged in parallel, and the condensers are connected in series by circulation water pipes. The center positions in a shell length direction of the respective condensers are made to differ in the length direction. The lengths of an inlet side circulation water pipe and an outlet side circulation pipe of condensers adjacent to each other among the condensers are made coincident with each other.

Abstract: Device for distributing a fluid in a controlled manner, in particular for distributing a gas loaded with particles, the device comprising a pipe (1) provided with at least one inlet orifice (2) and with a series of outlet orifices (3) spread along the pipe (1) and cut in the side wall of this pipe, characterized in that at least one section (4) of the wall, located downstream of at least one outlet orifice and limited by a section (5) of the edge of this orifice, has a shape such that this section of the edge of this orifice is positioned inside the pipe so that, when the device is in service, the flow direction of the fluid exiting this orifice and travelling along said wall section is controlled by the shape of the latter section.

Abstract: Raw MSW is delivered through an organic digester (12) within which an organic fraction of the MSW is broken down by a combination of aerobic microbial activity and mechanical action and converted into a solid bio fuel material. Treated waste material comprising a mixture of the solid bio fuel material and insert inorganic waste material is discharged from the digester (12). The treated material is delivered through a separator (20) for removal of the inorganic fraction. A substantially homogenous solid bio fuel material is discharged from the separator (20), and passed through a dryer (26) and into a gasifier (30). Within the gasifier (30) the homogenous solid bio fuel material is heated in a depleted oxygen atmosphere to generate a bio fuel gas rich in methane, hydrogen and carbon monoxide. The bio fuel gas is delivered through a cleaner (35) and then collected in a storage tank. Bio fuel gas is fed as required from the storage tank to a power plant (50) for generating electrical energy.

Abstract: A modification method for reducing emissions from an annular shaped combustor of a gas turbine plant, having uniformly spaced circumferentially mounted premix burners (20), includes the steps of: removing at least one burner (20), thereby disrupting the spatial uniformity of the remaining the burners (20); and modifying the combustor air distribution system so as to compensate for the increased burner pressure drop of the remaining burners, thus enabling the modified combustor to operate at a load equivalent to the unmodified combustor. Emission reduction is enabled by the increase in the gas velocity of the burner for a given load further enabled by the flame stabilizing effect of disrupting the spatial uniformity.

Abstract: Heat recovery equipment recovers heat from flue gas. The heat recovery equipment includes a power generation plant that drives a steam turbine by superheated steam produced in a boiler, and an exhaust-gas treatment line that treats flue gas output from the boiler. The exhaust-gas treatment line includes a first air preheater, a heat extractor unit, and a dry electrostatic precipitator. The power generation plant includes a condensed water line. The condensed water line includes a condenser, a condensed water heater, and a low-pressure feedwater heater. The condensed water heater heats water condensed by the condenser with the heat recovered by the heat extractor unit.

Abstract: A method for generating openings in a metal foil includes at least the following steps: a) providing a planar metal foil, b) generating at least one bend in the metal foil, and c) generating at least one opening in the region of the at least one bend through the use of a cutting production process. Grinding tools are preferably used. A method for producing a honeycomb body, an exhaust gas treatment unit for mobile internal combustion engines having a honeycomb body and being produced by the method, as well as a motor vehicle, are also described.

Abstract: An exhaust gas treatment apparatus (20) for reducing the concentration of NOx, HC and CO in an exhaust gas stream (18) such as produced by a gas turbine engine (12) of a power generating station (10). The treatment apparatus includes a multifunction catalytic element (26) having an upstream reducing-only portion (28) and a downstream reducing-plus-oxidizing portion (30) that is located downstream of an ammonia injection apparatus (24). The selective catalytic reduction (SCR) of NOx is promoted in the upstream portion of the catalytic element by the injection of ammonia in excess of the stoichiometric concentration, with the resulting ammonia slip being oxidized in the downstream portion of the catalytic element. Any additional NOx generated by the oxidation of the ammonia is further reduced in the downstream portion before being passed to the atmosphere (22).

Abstract: A method of assembling a gas turbine engine includes providing a gas turbine engine including a compressor, a combustor downstream from the compressor, and a turbine coupled to the compressor, and coupling a seal assembly aft of the compressor such that air discharged through the seal assembly facilitates reducing the cavity pressure, and therefore reducing the axial forces induced to an aft side of the compressor.

Abstract: The wet steam exiting a low pressure steam turbine does not rapidly attain thermodynamic equilibrium because insufficient condensation nuclei are present in the phase transition zone inside the turbine. Therefore, the steam is subcooled, decreasing the power generated by the turbine, and the liquid water carried by the steam consists of relatively coarse droplets which strike the surface of the turbine blades causing erosion. Corona electrodes installed inside the turbine before the saturation line create electrically charged particles which serve as condensation nuclei, decreasing subcooling, and producing a large number of fine droplets. Thereby, thermodynamic equilibrium is more closely approached, more power is generated, and smaller water droplets cause less erosion inside the turbine.

Abstract: The present invention relates to a system in which a process of condensing steam or vapor is used for cooling or heating an ambient environment. An increase in the effectiveness of the condensing process is achieved by adjusting the input of steam or vapor into the condenser.

Abstract: An air-cooled condenser has a first stage comprising both a K and a D section with fin tubes fed with steam at both ends, and a second stage comprising a D section. Each core tube in the first stage has at least one extraction channel at the trailing edge of the core tube located in an unfinned section of the core tube and separated from the main section of the core tube by a rib or baffle. Extraction channels may be provided at both the leading and trailing edges or rounded ends of the core tube, or at the trailing edge only. Openings in the rib connect at least a central portion of the main section to the extraction channel. The upper end of each extraction channel of each core tube is connected via an extraction passageway and transfer duct to the lower ends of the D-section fin tubes. The D-section creates a strong suction action to draw steam and non-condensibles out of the first stage.

Abstract: Disclosed is a method for operating a condenser of the type having a housing inside of which is disposed a bundle of water tubes, a steam inlet for steam to flow inside the housing for contacting the tube bundle for cooling, and having a stagnant air zone during operation wherein any air in-leakage preferentially collects and condensate in the air zone becomes subcooled. A trough or drain is placed beneath the stagnant air zone for collecting subcooled condensate from the stagnant air zone. Collected subcooled condensate is transported from the trough or drain in a pipe to said steam inlet. The transported condensate is injected with an injector for contacting with steam entering the condenser, whereby the injected condensate is heated by the steam for expelling dissolved oxygen in the injected condensate. Advantageously, the condenser is fitted with an array of temperature sensors at the stagnant air zone for determination of its presence and/or size.

Abstract: For regulating the power output of a combined-cycle power station, that power output fraction which is allocated to the uncoupling of distance heat is determined as a second desired value by adopting the mass flow or mass flows of a medium to be heated through one or more heating condensers and the forward-flow and return-flow temperatures of the medium to be heated which occur at the same time. The quantities can be determined in a simple way in the region of the uncoupling of the distance heat. Thus, complicated measurements in the region of a steam turbine, by which the heating condensers are supplied with heating steam, are avoided.

Abstract: The present invention relates to an exhaust heat recovery system that recovers exhaust heat that is generated by an electrical power generator for use in supplying hot water and air conditioning, and has as an object of providing an exhaust heat recovery system that realizes reduced costs and has a high energy efficiency. The exhaust heat recovery system provides a heat exchanger HEX1 for exhaust heat recovery that heats heating medium by heat exchange between exhaust gas generated at the power generator and heating medium that is circulated and used in a predetermined facility. In addition, the exhaust heat recovery system comprises a tank 13 that temporarily stores the heating medium, and an open-air pipe 41 that releases the contents of the tank 13.

Abstract: A method for producing power to drive a load (17) using a working fluid circulating through a system that includes a prime mover (12) having an inlet and an accumulator (20) containing discharge fluid exiting the prime mover. A stream of heated vaporized fluid is supplied at relatively high pressure to the prime mover inlet and is expanded through the prime mover (12) to a lower pressure discharge side where discharge fluid enters an accumulator (20). The discharge fluid is vaporized by passing it through an expansion device (28) across a pressure differential to a lower pressure than the pressure at the prime mover discharge side. Latent heat of condensation in the discharge fluid being discharged from the prime mover is transferred by a heat exchanger (14) to discharge fluid that has passed through the expansion device (28).

Abstract: The present invention relates to an exhaust heat recovery system that recovers exhaust that is generated by an electrical power generator for use in supplying hot water and air conditioning, and has an object providing an exhaust heat recovery system that realizes reduced costs and has a high energy efficiency. The exhaust heat recovery system provides a heat exchanger HEX1 for exhaust heat recovery that uses the heat of the exhaust gas generated by an electrical power generator to heat a heating medium that is circulated and used in a predetermined facility, and heats the heating medium by carrying out heat exchange between the exhaust gas and the heating medium, a temperature detecting device TC2 that detects the temperature of the heating medium heated by the heat exchanger HEX1 for exhaust heat recovery, and a control valve V1 that controls the amount of exhaust gas fed to the heat exchanger HEX1 for exhaust heat recovery based on the detected results of the temperature detecting device TC2.

Abstract: In order to evacuate a turbine condenser, air contained in the turbine condenser is suctioned using propellant steam from a starting jet pump. The propellant steam and the air are guided into an auxiliary condenser which is arranged downstream from turbine condenser.

Abstract: A method of increasing the power generated by a steam turbine includes the step of receiving, at a steam turbine final stage, a steam byproduct with an electrically charged component. An electric field is created immediately proximate to the steam turbine final stage to substantially eliminate the electrically charged component from the steam byproduct and thereby reduce turbulence associated with the steam byproduct.

Abstract: Water quality detecting points for detecting sea water leakage are provided at a portion in a hot well zone right under a tube bundle of heat exchange tube forming a steam condensing zone and at a condenser outlet allowing the condensate to be led out of the condenser or in the vicinity thereof, and a difference between detection values at both detecting points is monitored. Further, when leakage of sea water occurred, a feed water stop valve or a condensate stop valve is stopped for separating the system in which the sea water is mixed, and at same time, make-up water is supplied to a steam generator. Further, chemical or chemical dilution water is injected into the condensate mixed with sea water.

Abstract: A power plant apparatus comprising a condenser for condensing turbine exhaust steam having a steam dome, a steam inlet, a tube bundle, a hot well for collecting condensate, an air removal section, an internal makeup water heater bundle. An internal makeup water header which includes a pipe having spray nozzles arranged counter-current to the flow of steam introduced by the steam inlet is used to introduce heated makeup water into the exhaust stream from the turbine within the condenser.

Abstract: The invention relates to a method and to a device for cooling the inflow area (37) of the shaft of a steam turbine (10). According to the invention, a partial mass flow m1 is branched off upstream of a feed device (23) that supplies the steam to the steam turbine (10). Said partial mass flow is cooled and then guided to the feed device (23), from where it is supplied to the steam turbine (10)t together with the remaining mass flow m2. The inventive method and device allow for a simplified control and design of the turbine.

Abstract: An apparatus for subliming or condensing a water-containing fluid, which apparatus is provided with a tubular holder (1) having a longitudinal direction and at east one tube (2) extending in that longitudinal direction at least within the holder (1), wherein the holder is provided with at least one inlet (5) and at least one outlet (6), there being further provided at least one supply (3) and at least one discharge (4), which are in communication with the interior of the at least one tube (2), which on one side extends through a wall of the holder an is sealingly secured therein an don the other side within the holder terminates with a free end, closed with respect to the interior of the holder, which free end is guided so as to be slidable in longitudinal direction, by guide means which are located at a distance from the wall in which the tube is scalingly secured.

Abstract: The invention concerns a process and an apparatus for reducing the content of nitrogen oxides (NOx) in the exhaust gases of diesel engines or turbines for stationary or mobile applications/vehicles in an SCR system by providing a stored source of liquid reducing agent and feeding the stored reducing agent to the exhaust gases, said process comprising transferring the liquid reducing agent from the external storage tank to a membrane storage tank equipped with an inner bellow consisting of a non-permeable flexible membrane, and a hydraulic or pneumatic displacement fluid located outside the inner bellow, filling the flexible inner bellow with liquid reducing agent and transferring the liquid reducing agent from the flexible inner bellow to the exhaust gases.

Abstract: A condenser neck (1) comprises two level cover plates (2) and two side walls (3) located between them that are favorably shaped with respect to flow technology. The cover plates (2) and side walls (3) may be reinforced with ribs (4a,4b). A pipe (5) arranged between the cover plates (2) further reinforces the condenser neck (1). It would also be conceivable to provide openings (11) for bypass lines in the pipe (5) and/or in the side walls (3).

Abstract: A condenser neck (1) comprises two level cover plates (2) and two side walls (3) located between them that are favorably shaped with respect to flow technology. The cover plates (2) and side walls (3) may be reinforced with ribs (4a,4b). A pipe (5) arranged between the cover plates (2) further reinforces the condenser neck (1). It would also be conceivable to provide openings (11) for bypass lines in the pipe (5) and/or in the side walls (3).

Abstract: A power plant apparatus comprising a condenser for condensing turbine exhaust steam having a steam dome, a steam inlet, a tube bundle, a hot well for collecting condensate, an air removal section, an internal makeup water heater bundle. An internal makeup water header which includes a pipe having spray nozzles arranged counter-current to the flow of steam introduced by the steam inlet is used to introduce heated makeup water into the exhaust stream from the turbine within the condenser.

Abstract: As geothermal steam containing contaminants such as boron, arsenic, and mercury is passed through a turbine-condenser system, the contaminants preferentially collect in the initial condensate produced from the steam. Collecting this initially-produced condensate and segregating it from the remainder of the steam being condensed ensures that condensate produced from the remainder of the steam is contaminants-lean, preferably containing the contaminants in concentrations allowing for discharge of the contaminants-lean condensate to the environment.

Abstract: Disclosed is a method for operating a condenser of the type having a housing inside of which is disposed a bundle of water tubes, a steam inlet for steam to flow inside the housing for contacting the tube bundle for cooling, and having a stagnant air zone during operation wherein any air in-leakage preferentially collects and condensate in the air zone becomes subcooled. A trough is placed beneath the stagnant air zone for collecting subcooled condensate from the stagnant air zone. Collected subcooled condensate is transported in the trough in a pipe to said steam inlet. The transported condensate is injected with an injector for contacting with steam entering the condenser, whereby the injected condensate is heated by the steam for expelling dissolved oxygen in the injected condensate. Advantageously, the condenser is fitted with an array of temperature sensors at the stagnant air zone for determination of its presence and/or size.

Abstract: Small, rigid electrodes in the form of sharp-pointed rods (“pins”) installed around the periphery of the diffuser at the exhaust of a steam turbine extend into the path of the wet steam flowing out of the turbine and remove electric charge from the steam, whereby turbine back-pressure and turbulence within the exhaust hood are decreased, and the energy conversion efficiency of the power generating unit is increased. In the preferred embodiment these pins are grounded, but pin electrodes isolated from electrical ground with a suitable voltage applied may give better performance in some situations. Similar pins may be installed around the bearing cone facing the turbine exhaust, along the L-stage guide blades, or along the trailing edges of flow guides or baffle plates within the exhaust hood and condenser to remove from the steam charge that may be present in the steam in those places, whereby energy conversion efficiency is likewise increased.

Abstract: The invention consists a dual section vessel including a first section being a turbine exhaust steam enclosure and a second section being a condensate water vessel accumulation, both sections being connected by a system of water columns. The system of water columns comprising moderate diffusers for retaining turbine exhaust steam velocity without increasing in pressure, towards impact with cold recirculated condensate water. The recirculated warm condensate water from the condensate water vessel flows through a counter current heat exchanger, and as cold condensate water to dispersion pipes connected to the ends of the diffusers. This complete system is arranged for receiving, compressing and condensing the exhaust steam from the turbine last stage. From the collision location the exhaust steam and condensate water continue to flow as “two phase flow” downward to the “condensate water vessel.

Abstract: The present invention relates to a system in which a process of condensing steam or vapor is used for cooling or heating an ambient environment. An increase in the effectiveness of the condensing process is achieved by adjusting the input of steam or vapor into the condenser.

Abstract: The invention concerns a process and an apparatus for reducing the content of nitrogen oxides (NOx) in the exhaust gases of diesel engines or turbines for stationary or mobile applications/vehicles in an SCR system by providing a stored source of liquid reducing agent and feeding the stored reducing agent to the exhaust gases, said process comprising transferring the liquid reducing agent from the external storage tank to a membrane storage tank equipped with an inner bellow consisting of a non-permeable flexible membrane, and a hydraulic or pneumatic displacement fluid located outside the inner bellow, filling the flexible inner bellow with liquid reducing agent and transferring the liquid reducing agent from the flexible inner bellow to the exhaust gases.

Abstract: In order to provide for coupling between the shell and the liner, a passive mounting system is provided. The passive mounting system uses indirect metal contact between the liner or liner panel and the shell. This design serves two main objectives: to minimize heat transfer between the hot gases and ultimately the exterior of the exhaust system; and to provide flexibility and mobility between liner components for changing stress and strain conditions, whether thermally related or otherwise. A passive mounted lining system comprising an outer shell, a liner support channel having a bolt slide void, a partially threaded bolt with a predetermined length of threads, and a series of thermal expansion compatible nuts, bolts, and washers, along with a liner channel support leg is disclosed.

Abstract: A steam condenser (1) which, relative to a steam turbine (2), is arranged at equal ground level and into which turbine steam flows in the horizontal direction through the condenser neck (3) has two or more modules (4a, 4b) in which the steam condenses on cooling tubes (10). The modules (4a, 4b) are, in accordance with the invention, separated by a defined intermediate space (7). The central, mutually facing module walls (9) are supported and connected to one another by connecting parts (8). This arrangement contributes to a defined stress distribution in the central module walls (9). In a particular embodiment, bypass conduits (20), which lead the steam from the boiler directly into the steam condenser (1) while bypassing the turbine (2), are arranged in the intermediate space (7). For this purpose, the bypass conduits (20) lead to a steam introduction appliance (21), which is arranged at the condenser neck (3) at the level of the intermediate space (7).

Abstract: Water quality detecting points for detecting sea water leakage are provided at a portion in a hot well zone right under a tube bundle of heat exchange tube forming a steam condensing zone and at a condenser outlet allowing the condensate to be led out of the condenser or in the vicinity thereof, and a difference between detection values at both detecting points is monitored.

Abstract: A closed-cycle heat engine system that operates within a sealed, gas tight enclosure uses CO2, water vapor and O2 in the intake and compression cycles, injecting fuel to promote combustion and using the high temperature and pressure product CO2 and water vapor as the post combustion working gas. By controlling the individual partial pressures of the O2 and CO2 in the enclosure and allowing H2O vapor to exist in saturation within the enclosure the gamma value of the ingested gas can be controlled to meet engine design and operating requirements. Excess CO2 produced by combustion is compressed, removed from the enclosure, liquefied and stored in a separate tank. Noncondensable gasses are returned to the engine enclosure where they are recycled to promote system efficiency. Excess water produced by combustion is also removed from the enclosure and stored in a separate tank.

Abstract: In a disclosed solenoid apparatus, one end of an actuating rod secured to the plunger of the solenoid apparatus abuts on a slider equipped with extension and compression pressure control valves. A coil is excited to induce thrust in the plunger, thereby moving the slider to control damping force. An end of the actuating rod projects from the plunger and extends through a rod guide to form a hydraulic fluid chamber at the rear of the plunger. Hydraulic fluid chambers inside the hydraulic shock absorber are communicated directly with the hydraulic fluid chamber at the rear of the plunger through hydraulic fluid passages in the actuating rod. Even when there is a sharp change in the pressure in the hydraulic fluid chambers inside the hydraulic shock absorber, the pressures acting on both ends of the plunger are kept equal to each other at all times.

Abstract: This invention relates to a gasification power generation process wherein a product gas A1 obtained by the gasification of coal or petroleum is used as the fuel of a gas turbine 4 for electric power generation, the process comprising the steps of dedusting product gas A1, introducing product gas A1 directly into gas turbine 4 as the fuel thereof to effect electric power generation, and subjecting the exhaust gas A2 discharged from gas turbine 4 to a gas purification treatment including at least desulfurization. This invention can provide a gasification power generation process which is more suitable for practical use from an economic point of view in that a high degree of exhaust gas purification and a marked improvement in thermal efficiency can be achieved and, moreover, the construction of the equipment for carrying out a gas purification treatment including desulfurization can be highly simplified.

Abstract: Sufficient negative charge density may be present in the wet steam flowing through the exhaust hood of a steam power generating unit to cause intense electrical discharges which cause severe corrosion of exposed carbon steel members and generate turbulence, decreasing power output. The electric charge density is proportional to current from a charge probe exposed to the flowing steam to ground. Electric charge density can be controlled by adjusting the concentration of ammonia in the steam supply. A small positive charge density will eliminate corrosion and minimize turbulence related to electrical discharges, thereby increasing power generated. The amount of negative charge released can also be decreased by cladding the portions of the flow guides and other carbon steel members located near to the turbine exhaust with stainless steel, or with an appropriately chosen insulating composition.

Abstract: In a process for preheating and deaerating make-up water in a power generation plant by steam, the required make-up water is initially heated up to the saturation temperature without substantial deaeration and is subsequently deaerated. The steam used for heating and deaerating is expanded steam from a condenser, which steam is almost fully condensed during the heating of the make-up water and is recycled to the steam circulation of the power generation plant.

Abstract: A combined heat and electricity generating unit is suitable for use in single family homes and the like. When it is operating it provides heat for heating the home and electricity for use by the electricity consuming devices in the home and the excess is available for sale to the power utility. It includes an air compressor, a fuel pump, a turbine driven by heated combustion products and an electric motor-generator for driving the fuel pump and air compressor and converting energy produced by the turbine to electricity. In an alternate embodiment the electric motor-generator is replaced by an electric motor and an electric generator. In the case where gaseous fuel is used the fuel pump may be a positive displacement gas compressor. The pressurized combustion products enable a particularly efficient and inexpensive heat exchanger. The air compressor maintains a slight vacuum in the housing thereby eliminating risk of combustion products escaping.

Abstract: Drops of water in wet steam exiting a steam turbine are electrically charged. When exposed to a sufficiently strong electric field produced by suitably disposed electrodes (34,85), the electrically charged water drops disintegrate into numerous small droplets, which serve as nuclei for internal condensation. Supersaturation of the steam is decreased, thereby decreasing the amount of water in the vapor phase, the condenser pressure, and the turbine backpressure. Electrostatic forces acting upon the charged water droplets decrease turbulence in the wet steam flow, further decreasing backpressure. The result is an increase in energy conversion efficiency and power output at constant fuel rate. A method and device for providing this beneficial result are provided.

Abstract: A method and apparatus for providing a required deaerating temperature differential between incoming water and sparge steam in a steam generation system having a vacuum deaerator. The present invention selectively combines raising the energy of the sparge steam with flash cooling of the incoming water to provide the required deaerating temperature differential. The energizing of the sparge steam is accomplished by a thermocompression device. The thermocompression device may also be used to reduce the pressure in a portion of the vacuum deaerator to cause the flash cooling of the incoming water.

Abstract: A cogeneration system is disclosed using a Stirling cycle engine in which the waste heat from the engine and a generator driven by the engine is used for space heating or producing hot water and the generator used to produce electricity. A Stirling engine has numerous advantages over a reciprocating internal combustion engine in cogeneration systems in that the Stirling engine has a longer life, less maintenance cost, less noise and vibration and fewer emissions. With cogeneration, the added energy and fuel required over and above that required to produce a comparable amount of heat allowed to produce the same amount of heat with a conventional furnace or boiler is often less than the amount of electric energy produced from the system thereby resulting in a efficiency greater than 100% in the production of electricity.

Abstract: A steam condenser system for a turbine, which system includes: a condenser having an outlet for conveying uncondensed products out of the condenser; an exhauster having a housing, an inlet connected between the housing and the condenser outlet, and exhaust outlet connected to the housing, and a rotatable member, disposed in the housing and rotatable about an axis for propelling uncondensed products from the exhauster inlet to the exhauster outlet; and an electric motor having an output shaft connected for rotating the rotatable member. The motor is disposed relative to the exhauster such that the motor shaft forms an angle with the horizontal and extends in a downward direction from the motor to the exhauster. Preferably, the motor shaft and the axis of rotation of the rotatable member have a substantially vertical orientation and the motor is positioned above the rotatable member.

Abstract: An improved contaminant abatement process is disclosed which provides effective, cost efficient abatement of contaminants, and particularly hydrogen sulfide and sulfide ions, from geothermal power plant effluents. The process of the present invention is suitable for use with geothermal power plant effluent treatment systems having a primary hydrogen sulfide abatement system for removal of hydrogen sulfide from noncondensable gases, and a secondary hydrogen sulfide abatement system for removal of hydrogen sulfide from condensate. At least a portion of the condensate separated in the primary condenser is diverted for reinjection to the geothermal well prior to treatment in the secondary hydrogen sulfide abatement system. Diversion of at least a portion of the condensate comprising substantial amounts of hydrogen sulfide and sulfide ions reduces the cost of secondary hydrogen sulfide abatement, and reduces the costs involved in abatement of other contaminants.

Abstract: A moisture pre-separator for a steam turbine includes an inner cylinder, an outer cylinder and a bottom interconnecting lower ends of the inner and outer cylinders. An annular collection chamber formed by the outer surface of the inner cylinder and the inner surface of the outer cylinder and the bottom is vented to communicate steam from the collection chamber to the interior of the inner cylinder, thereby equalizing pressure around the circumference of the entry gap and increasing effectiveness of moisture entrapment. Vanes are provided either on the outer surface of the inner cylinder or the inner surface of the outer cylinder, or both, in order to enhance swirling flow of moisture within the chamber, thereby helping to keep moisture away from the outer surface of the inner cylinder.

Abstract: This invention relates to a power turbine system which consists of a first power turbine and a second compressor turbine. Both turbines are contained in the same housing and each turbine is connected to an individual shaft. The shafts of each turbine are interconnected by the individual gears of the gear housing system. An external energy source provides heat energy to the working fluid which enters and drives the first power turbine. The second compressor turbine receives the hot exhaust fluid of the first power turbine and compresses and circulates the gaseous fluid as it leaves the outlet of the second compressor turbine and the outlet of the turbine housing. The working fluid then flows to the inlet of the condenser. This invention is designed to allow the second compressor turbine to rotate more often than the first power turbine as a result of the gears and shafts located in the gear housing system.

Abstract: This invention consists of a medium power plant system and a low power plant system with individual closed loops. The medium power plant system recaptures heat energy from any source of heat fluid pressure. The exhaust heat energy of the medium power plant system, through a heat exchange relationship, is used to drive the individual closed loops of the low power plant system. The exhaust heat energy of the low power plant system with individual closed loops, through a heat exchange relationship, is recycled and used to preheat the working fluid inside the closed loop prior to obtaining additional exhaust heat energy from the medium power plant system. The medium power plant system and the low power plant system with individual closed loops contains a plurality of N turbine housing, where N is a whole number greater than one. Each turbine housing contains a power turbine and a compressor turbine.

Abstract: A method and apparatus for collection of water in a steam turbine exhaust system and in particular within a steam turbine exhaust pipe in which there is at least one turn or bend in the pipe and a plurality of substantially parallel turning vanes positioned in the bend for reducing undesirable flow characteristics in steam. The turning vanes extend across the pipe transverse to the direction of steam flow and are attached at opposite ends to a vane support ring embedded in the pipe wall. The invention includes forming a plurality of slots extending through the vane support ring for tranporting water from within the pipe to an external location. The slots are aligned on the vane support ring in an area corresponding to virtually zero pressure differential between each of the vanes and an adjacent vane. The slots preferably extend from a trailing edge of one of the vanes along the line normal to a tangent line to an adjacent vane on the low pressure side of the vane.