Showing papers on "Surface condenser published in 2004"

Method and system for recovering carbon dioxide

Abstract: To provide a method for recovering carbon dioxide, in which thermal energy for regenerating a CO2 absorbing solution and power for compressing the recovered CO2 are supplied, and high thermal efficiency is achieved, and a system therefor. A system for recovering carbon dioxide including a high pressure turbine 3, an intermediate pressure turbine 7, and a low pressure turbine 8; a boiler 1 for generating steam for driving the turbines; an absorption tower 18 filled with a CO2 absorbing solution for absorbing and removing CO2 from combustion exhaust gas of the boiler; a regeneration tower 24 for regenerating the absorbing solution having absorbed CO2; a compressor 42 for compressing the removed CO2; a turbine 41 for a compressor, which is driven by some of the exhaust steam of the high pressure turbine; turbines 51 and 52 for auxiliary machinery, which are driven by some of the exhaust steam of the intermediate pressure turbine; and supply pipes 45 and 55 for supplying exhaust steam of the compressor turbine and the auxiliary machinery turbines to a reboiler 30 of the regeneration tower as a heating source.

Steam cooking apparatus

Abstract: Midway along an outer circulation passage provided outside a heating chamber, a steam generating device is arranged, and, through the outer circulation passage, steam is fed to the heating chamber. A control device controls a steam generating heater arranged inside the steam generating device and a vapor heating heater provided in a space through which an air stream flowing through the outer circulation passage is returned to the heating chamber, and forms a cooking sequence by using, singly or in combination, a first heating mode that uses superheated steam obtained as a result of the steam being heated with the vapor heating heater and a second heating mode that uses hot air or radiation heat obtained by making the vapor heating heater produce heat without supply of steam.

Heating apparatus of washing machine and control method thereof

Abstract: A heating apparatus of a washing machine comprises: a steam generator for generating steam; and a spray nozzle for spraying steam generated from the steam generator into a tub, in which a water level sensor for detecting a level of water supplied for steam generation step by step is mounted at the steam generator. According to this, an entire size of the washing machine is reduced, an amount of washing water is reduced, and a water level inside the steam generator is detected more accurately, thereby enhancing a performance of the heating apparatus.

Steam pyrolysis as a process to enhance the hydro-gasification of carbonaceous materials

Abstract: A process and apparatus for producing a synthesis gas for use as a gaseous fuel or as feed into a Fischer-Tropsch reactor to produce a liquid fuel in a substantially self-sustaining process. In one embodiment, a slurry of particles of carbonaceous material in water, and hydrogen from an internal source, are fed into a hydro-gasification reactor under conditions whereby methane rich producer gases are generated and fed into a steam pyrolytic reformer under conditions whereby synthesis gas comprising hydrogen and carbon monoxide are generated. A portion of the hydrogen generated by the steam pyrolytic reformer is fed through a hydrogen purification filter into the hydro-gasification reactor, the hydrogen therefrom constituting the hydrogen from an internal source. The remaining synthesis gas generated by the steam pyrolytic reformer is either used as fuel for a gaseous fueled engine to produce electricity and/or process heat or is fed into a Fischer-Tropsch reactor under conditions whereby a liquid fuel is produced. Molten salt loops are used to transfer heat from the hydro-gasification reactor, and Fischer ~Tropsch reactor if liquid fuel is produced, to the steam generator and the steam pyrolytic reformer. In another embodiment of the invention, carbonaceous material can be heated simultaneously in the presence of both hydrogen and steam to undergo steam pyrolysis and hydro-gasification in a single step.

Steam generator for washing machine

Abstract: A steam generator for a washing machine comprises: a hermetic container provided with a water supply port for supplying water and a steam exhaustion port for exhausting steam; a heater arranged in the hermetic container for heating water supplied into the hermetic container; and a drain unit for draining residual water inside of the hermetic container outwardly. According to this, residual water inside of the steam generator is outwardly exhausted thus to maintain cleanness of the steam generator. Also, the drain unit using a siphon principle is installed thus to naturally exhaust residual water inside of the steam generator without an additional valve device, thereby reducing a fabrication cost.

Power generation system and method of operating same

Abstract: A power generation system comprising a liquid-cooled electrolyzer operable to produce a supply of hydrogen from water is provided. The power generation system may also comprise a steam turbine and a steam production device operable to produce a supply of steam to the steam turbine. The power generation system may also comprise a system operable to provide cooling liquid to the liquid-cooled electrolyzer and to couple heated cooling liquid from the liquid-cooled electrolyzer to the steam production device.

Closed-loop cooling system for a hydrogen/oxygen based combustor

Abstract: A closed-loop cooling system is provided for a hydrogen/oxygen based combustor. A combustion reaction between hydrogen and oxygen in the combustor produces steam. The steam is used to generate work from a turbine shaft, which is used to drive a propulsion system for the underwater vessel. After the steam passes through the turbine, the steam is cooled back to liquid water by a condenser that uses a seawater cooling loop to cool the steam into cold water. The cold water is then injected into the combustor, and pumped into passages along the walls of the combustor, thus absorbing the heat. The cold water absorbs this heat until it becomes hot water or steam, which is then injected into the combustor with the hydrogen and oxygen to act as a diluent, thus reducing the reaction temperature of the hydrogen/oxygen combustion reaction. The reaction produces more steam, and the cycle repeats.

Thermal power process

Abstract: In a power generation unit, especially in a gasturbo group, a gaseous process fluid is guided in a closed cycle. The gaseous process fluid flows through a compression device ( 1 ), a heater ( 6 ) and an expansion device ( 2 ), especially a turbine. Downstream from the expansion device at least one heat sink ( 11, 13 ) is arranged in which the gaseous process fluid is cooled before it is returned to the compressor device ( 1 ). At least one heat sink includes a waste heat steam generator in which an overheated amount of steam ( 26 ) is generated that is added to the compressed gaseous process fluid. Together with the gaseous process fluid the steam flows through the heater ( 6 ) if necessary and is expanded together with it. The expanded steam condenses in the waste heat steam generator ( 11 ) and another heat sink ( 13 ); the condensate is processed in a filter ( 16 ) and is returned to the waste heat steam generator ( 11 ) under pressure via a feed pump ( 18 ). Due to the closed process any kind of process fluid and process filling for controlling performance can be used.

Steam turbine, steam turbine plant and method of operating a steam turbine in a steam turbine plant

Abstract: A steam turbine and steam turbine plant that can utilize a relatively higher reheated steam, such as about 1300 degrees Fahrenheit or higher, is provided. A steam turbine plant includes a steam generator generating high pressure steam and reheated steam, a high pressure turbine driven by the high pressure steam generated by the steam generator, and an intermediate pressure turbine driven by the reheated steam. A steam bleed line coupled with the high pressure turbine bleeds steam from the high pressure turbine as cooling steam. The intermediate pressure turbine includes a heated steam inlet for receiving the reheated steam, and a cooling steam inlet for receiving the cooling steam. The cooling steam cools components of the intermediate pressure turbine that receive the reheated steam. A low pressure turbine is driven by steam discharged from the intermediate pressure turbine, and a condenser condenses steam discharged from the low pressure turbine into water as a condensate. A plurality of feedwater heaters heat the condensate to produce feedwater provided to the steam generator.

Use of a thermal barrier coating for a housing of a steam turbine, and a steam turbine

Abstract: The invention relates to the use of a thermal insulating layer for a housing of a steam turbine in order to even out the deformation behavior of different components based on different heatings of the components.

Process for the generation of superheated steam, steam generator for a power plant and power plant

Abstract: A process for making superheated steam comprises using a superheater (74) to superheat steam generated in a separate vaporizer (84). Preferably the units are independent and in separate system and solar power is used. Independent claims are also included for the following: (a) a steam-producing step for a power station as above; and (b) a power station, especially a solar power station having steam turbines using the above.

Heat dissipating device with enhanced boiling/condensation structure

Abstract: A heat dissipating device. The heat dissipating device comprises a receptor plate to be placed over a device that generates heat, an evaporator coupling to the receptor plate, a condenser column placed in fluid communication with the evaporator, and a set of condenser extension surfaces extending from the condenser. The evaporator includes a modulated porous layer and stores liquid. The condenser column includes a non-wetting surface. The condenser extension surface facilitates heat dissipation.

The Condensation of Ammonia-Water Mixtures in a Horizontal Shell and Tube Condenser

Abstract: The heat transfer rates that develop when ammonia water mixtures condense within a small, un-vented, horizontal, shell and tube condenser are examined. The vapor flow within the condenser was constrained by baffles and the condensate created formed a pool that flowed along the base of the condenser. During the test program the inlet ammonia vapor concentration to the condenser varied from 0 to 10 wt % and the maximum local vapor concentration measured was 26 wt %

Steam turbine power generating unit

Abstract: PROBLEM TO BE SOLVED: To provide a steam turbine power generating unit which inhibits increase in facility cost and generation of excessive thermal stress at load transition such as unit start-up or shut-down and offers a high thermal efficiency and good operational characteristics, by using austenitic heat-resistant steel or an Ni alloy exclusively for prescribed structural members in an intermediate pressure turbine. SOLUTION: The steam turbine power generating unit has the intermediate pressure turbine divided into a high-temperature intermediate pressure turbine part 11a of a high-temperature high-pressure side and a low-temperature intermediate pressure turbine part 11b of a low-temperature low-pressure side. Here, the high-temperature intermediate pressure turbine 11a comprises the structural members formed from the austenitic heat-resistant steel or the Ni alloy and is operated by steam at a temperature of ≥650°C. Other turbines are formed mainly from ferritic heat-resistant steel. This provides the economical steam turbine power generating unit which has a high thermal efficiency. COPYRIGHT: (C)2005,JPO&NCIPI

Washing machine with vapour generator and water circulation

Abstract: A washing machine includes: a steam generator for generating steam; a circulation pump for pumping circulation water discharged from a tub and re-supplying it into a drum; a spray nozzle for spraying steam generated from the steam generator and the circulation water pumped from the circulation pump into the drum; and a back-current preventing branch unit connected to the steam generator by a steam supply line, connected to the circulation pump by a circulation line, and connected to the spray nozzle. With this structure, circulation water circulated by the circulation unit and steam generated from the steam generator are sprayed to the laundry through one spray nozzle, so that a system can be simplified and a fabrication cost can be reduced.

Refrigerating system for steam compression refrigerator

Abstract: PROBLEM TO BE SOLVED: To provide a refrigerating system eliminating an expansion valve and omitting measuring instruments and control equipment required for high precision control to reduce the occurrence frequency of failures or the like. SOLUTION: The expansion valve is eliminated, and an evaporator 16, a compressor 20, a condenser 18, a cooling tower 24 and load side connection piping 21 are connected as a sealed system. A vacuum state is created inside to operate the compressor 20. Steam in the evaporator 16 thereby evaporates to lower the internal temperature of the evaporator 16. After compressing the steam by the compressor 20, the steam having a high temperature is led to the condenser 18 and condensed in the condenser 18 by cooling water from the cooling tower 24 to become water again. The cooling water raised in temperature by the condensation of high temperature steam is fed to the cooling tower 24 or the like, and the heat is radiated to the outside by the cooling tower 24. Condensed water in the condenser 18 is returned to the evaporator 16 through the connection piping 17 connecting the condenser 18 and the evaporator 16, to maintain the water level difference corresponding to the pressure difference between both containers. COPYRIGHT: (C)2006,JPO&NCIPI

A portable sanitizer

Abstract: A steam cleaning device (10) for producing a flow of substantially dry steam for cleaning and sanitizing. The steam cleaning device (10) includes a housing contains a water reservoir (30) and a steam generator (20) of instantaneous type comprises of at least one steam channel (24) having reasonably smooth walls for containing water introduced into the steam channel (24) from the water reservoir (30). A pump is used to pump water from the water reservoir (30) into the steam generator (20). The device (10) includes heating means (26) for heating the smooth walls of the steam channel (24) to heat and vaporize water inside the steam channel (24) into the substantially dry steam by internal forced-convection boiling. Preferably, steam formed in the channel (24) may be superheated in the steam channel (24) and discharges onto a workpiece through a nozzle (40) coupled to the housing. The steam cleaning device (10) is designed to be compact for easy storage.

Steam injection-type drum washing machine, which is capable of heating the water into high-temperature and high-pressure steam through a steam generator and supplying the steamed water into a tub and a drum

Abstract: PURPOSE: A steam injection-type drum washing machine is provided to economize water and electricity by quickly wetting the laundry in an initial water-supply step and to improve sterilizing and washing efficiencies by heating the water into high-temperature and high-pressure steam through a steam generator and supplying the steamed water into a tub and a drum. CONSTITUTION: A steam injection-type drum washing machine is composed of a pressure vessel connected to a water supply device(62); a heater mounted in the pressure vessel to heat the water; inlet and discharge valves disposed on the upside of the pressure vessel and opened and closed to the pressure in the pressure vessel to flow in and discharge the water, respectively; and an air chamber formed at the upside in the pressure vessel to supply the water in the pressure vessel up to a constant level. The water supply device comprises water supply passages(62c,62c') having ends connected with the pressure vessel to supply the water to the pressure vessel and a steam passage(62d) having one end connected to the pressure vessel and the other end positioned in a tub(56) and a drum(58) to supply the steam into the tub and drum.

System and method of cooling steam turbines

Abstract: A system and method of cooling a steam turbine having internal moving components to a predetermined temperature by controlling a flow of nitrogen through the turbine, thus decreasing the downtime associated with maintaining the turbine. This provides a more efficient and cost effective method of operating a power plant.

Combined cycle power plant with auxiliary air-cooled condenser

Abstract: A combined cycle power plant (20) including a main air-cooled condenser (22) condensing steam at a first pressure and an auxiliary air-cooled condenser (24) condensing steam at a second pressure higher than the first pressure. Designing an air-cooled combined cycle power plant for startup on a hot day can significantly increase the size and cost of the required air-cooled condenser. Adding an auxiliary air-cooled condenser having appropriate thermal characteristics relative to a main air cooled compressor to the steam bypass circuit of an air-cooled combined cycle power plant enables the plant to meet plant startup requirements during periods of peak thermal load in a more cost effective manner than would be achievable with the main air cooled condenser alone.

Method and apparatus for enhanced heat recovery from steam generators and water heaters

Abstract: A heating system having a steam generator or water heater, at least one economizer, at least one condenser and at least one oxidant heater arranged in a manner so as to reduce the temperature and humidity of the exhaust gas (flue gas) stream and recover a major portion of the associated sensible and latent heat. The recovered heat is returned to the steam generator or water heater so as to increase the quantity of steam generated or water heated per quantity of fuel consumed. In addition, a portion of the water vapor produced by combustion of fuel is reclaimed for use as feed water, thereby reducing the make-up water requirement for the system.

Method for reducing the calcium content in a domestic steam iron has a housing in which the generated steam circulates to separate the heavy calcium containing droplets from the pure steam

Abstract: The heated sole plate (16) generates steam in the form of heavy droplets which are passed (4) into the conditioning vessel (2) to circulate (28) around the heated bulb before entering the outlet tube (8) as fine steam vapour (26).

Steam cooker and related superheater

Abstract: A steam cooker includes a steam generator including a heating chamber defining a volume for holding water. A heat exchanger is associated with the heating chamber so as to generate steam. A steam superheater superheats steam traveling from the heating chamber to a steam cooking chamber.

Steam turbine, its cooling method and steam turbine plant

Abstract: PROBLEM TO BE SOLVED: To provide a steam turbine plant, and a cooling method of the steam turbine plant, whereby plant heat efficiency is further improved by raising the temperature of reheating steam to a superhigh temperature, maintaining a guarantee on high strength in a turbine constituting part by coping with the realization of the high temperature of the reheating steam. SOLUTION: This steam turbine plant is formed by combining a steam turbine 1, a condensation system 13, and a water supply system 14 with a steam generator 9; and has an overheat reducer 6 for supplying the reheating steam from the steam generator 9 to an intermediate pressure turbine 2 of a steam turbine part 1 via a nozzle box by arranging the nozzle box, and heating supply water by sensible heat of bleed steam from the intermediate pressure turbine 2 in a water supply system 14. COPYRIGHT: (C)2005,JPO&NCIPI

Carbonization apparatus for producing activated carbon

Abstract: A carbonization apparatus (10) for producing an activated carbon wherein an organic based material to be treated is carbonized, which comprises a carbonization furnace (40) wherein overheated steam is introduced to carbonize a material to be treated and the spent steam is discharged, a drying furnace (30) wherein the steam discharged from the carbonization furnace (40) is introduced to dry the material to be treated and the spent steam is discharged, a high temperature steam generating device (60) wherein steam is introduced and the high temperature overheated steam for use in supplying to the carbonization furnace (40) is formed, a deodorizing furnace (70) wherein impurities contained in the spent steam discharged from the drying furnace (30) are heated to deodorize them through burning and discharging a high temperature an exhaust gas is discharged, and a waste heat boiler (80) wherein water is heated by using the high temperature exhaust gas discharged from the deodorizing furnace (70) and the steam for supplying to the high temperature steam generating device (60) is formed. The carbonization apparatus allows the production of an activated carbon having high quality at a low cost, by recovering and reutilizing the heat contained in the exhaust gas which has been discharged from a deodorizing furnace and has been subjected to a burning treatment.

Progressive solar based power generating system

Abstract: An apparatus for converting solar energy to electrical energy and continue to generate electricity even when the solar radiation is not available by directing solar radiation to heating plates, which were mostly immersed in a steam generator to induce water temperature, and process water into steam which interacts with steam turbine and generator assembly to produce electricity. The remnant of the steam after steam to electricity conversion is captured by an elevated condensation collector, which is tilted with the lower side attached to a reservoir, the condensed steam descends into the reservoir, which is also elevated and attached by a water collecting system that collects rain and water from other sources. Water from the reservoir is released from the water chute at the base of the reservoir to the original elevation where it powers a water turbine and power, after electrical energy is extracted by generator assembly, the remaining water is recycled back into the steam generator for continuous solar energy conversion. A combustion chamber attached beneath the steam generator can be initiated using biomass or natural gas to ensure superheated steam production in the event that the solar radiation is unavailable or insufficient.

Steam oven system having steam generator with controlled fill process

Abstract: A steam oven includes a heating chamber or boiler in which steam is generated. Water fill and refill operations of the heating chamber are controlled in attempt to account for water expansion and/or to enable substantially regular production of steam.