Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that generates steam and an exhaust gas, an absorption tower that allows carbon dioxide contained in the exhaust gas to be absorbed in an absorption liquid, a regeneration tower that discharges a carbon dioxide gas from the absorption liquid supplied from the absorption tower, a reboiler that heats the absorption liquid of the regeneration tower, a turbine that is rotationally driven by the steam, a first condenser, a second condenser, and a desuperheater. The first condenser generates condensate by cooling steam exhausted from the turbine. The second condenser condenses the carbon dioxide gas while using a part of the condensate as cooling water, and generates hot water. The desuperheater lowers the temperature of the steam exhausted from the turbine by spraying the hot water, and supplies the steam at lowered temperature to the reboiler.

Abstract: In a time-of-flight type, secondary ionization mass-spectrometry apparatus, spread of a primary beam irradiating a sample is calculated through a numeric or practical-experiment process, and the spread is used as a blurring function to restore an image to reduce blur. Provided is an image processing method of a mass-spectrum image derived by irradiating a surface of a sample with a converged short pulsed primary beam, while changing an irradiating position, to display two-dimensionally a signal intensity based on a ratio of mass to an electric charge relating to a mass spectrum, derived by a time-of-flight secondary ion mass spectrometer. The method includes the steps of: calculating a blurring function based on a shape of the primary beam incident on the surface of the sample; and restoring the mass-spectrum image based on the blurring function.

Abstract: A steam turbine power plant 10 includes a steam turbine facility 20 in which power is generated by driving steam turbines with steam from a boiler 21 generating steam using combustion heat and steam from a heat collecting steam generator 31 generating steam using sunlight, and a carbon dioxide collecting facility 60 in which carbon dioxide contained in combustion gas from the boiler 21 and the like is collected. Further, steam from the heat collecting steam generator 31 is delivered to a solar heat steam turbine 32 and performs expansion work, and thereafter part of the steam is delivered to the carbon dioxide collecting facility 60 via a pipe 51 and heats the absorbing liquid 100 in the recovery tower 80.

Abstract: In a flange fastening section that includes a flange of a pipe for forming a connection of the pipe to another pipe by connection of the flange to a flange of the another pipe, the flange has a groove in the face to be connected to the flange of the another pipe for forming the connection. A gasket including expanded graphite is at least partly accommodated in the groove, and at least one O-ring is at least partly accommodated in the groove and at the peripheral surface of the gasket. The O-ring has a cavity through which working fluid may flow, an inlet piping into which the working fluid may flow and an outlet piping out of which the working fluid may flow.

Abstract: In one embodiment, a steam device includes a high-temperature member and a low-temperature member. One surface of the high-temperature member is exposed to high-temperature steam, and the other surface is cooled by cooling steam having a temperature lower than the high-temperature steam. The low-temperature member is disposed to face the high-temperature member with a passage for the cooling steam therebetween and is formed of a material having a heat resistance lower than that of the high-temperature member.

Abstract: A carbon-dioxide-capture-type steam power generation system 1 according to the present invention comprises a boiler 6 producing an exhaust gas 5 by combusting a fuel 2 and having a flue 8; an absorbing unit 40 being configured to absorb the carbon-dioxide contained in the exhaust gas 5 into an absorbing solution; and a regenerating unit 44 being configured to release the carbon dioxide gas from the absorbing solution absorbing the carbon dioxide and discharge the released carbon dioxide gas. Further, in this system, a reboiler 49 is provided for receiving a heating-medium as heat source, producing a steam 43 and supplying the produced steam 43 to the regenerating unit 44. Additionally, in the flue 8 of the boiler 6, a boiler-side heat exchanger 61 is provided for heating the heating-medium by the exhaust gas 5 passing therethrough.

Abstract: An Ni-based alloy for casting used for a steam turbine of an embodiment contains in percent (%) by mass C (carbon): 0.01 to 0.1, Cr (chromium): 15 to 25, Co (cobalt): 10 to 15, Mo (molybdenum): 5 to 12, Al (aluminum): 0.5 to 2, Ti (titanium): 0.3 to 2, B (boron): 0.001 to 0.006, Ta (tantalum): 0.05 to 1, Si (silicon): 0.1 to 0.5, Mn (manganese): 0.1 to 0.5, and the balance of Ni (nickel) and unavoidable impurities.

Abstract: Image blurring of a mass spectrum image obtained by the signal intensity for each mass/charge ratio from the obtained two-dimensional mass spectrum is reduced by image restoration using a blurring function. The blurring function expresses a two dimensional distribution of transferred energy related to the distance from a point of primary ion incidence limited by a region exceeding desorption energy of a molecule.

Abstract: In a time of flight type secondary ionization mass spectrometry apparatus, spread of a primary beam irradiated on a sample is calculated through a numeric or practical experiment process, and the spread is used as a blurring function to restore an image to reduce blur. Provided is an image processing method of a mass spectrum image derived by irradiating a surface of a sample with a converged short pulsed primary beam, while changing an irradiating position, to display two-dimensionally a signal intensity based on a ratio of mass to an electric charge relating to a mass spectrum, derived by a time-of-flight secondary ion mass spectrometer, wherein the method comprising steps of: calculating a blurring function based on a shape of the primary beam incident in the surface of the sample; and restoring the mass spectrum image based on the blurring function.

Abstract: A steam turbine 10 of an embodiment has seal rings 60 between an inlet sleeve 40 for introducing steam and an inner casing 20 and an outer casing 21 into which the inlet sleeve 40 is inserted. The seal rings 60 have high-temperature side seal rings 70 which are disposed their inner circumferences contacted to the outer circumference of the inlet sleeve 40, and low-temperature side seal rings 80 which are formed to have inner and outer diameters larger than those of the high-temperature side seal rings 70 and disposed with their outer circumferences contacted to the inner casing 20 or the outer casing 21. A thermal barrier layer 90 is disposed between the inner circumferences of the high-temperature side seal rings 70 and the outer circumference of the inlet sleeve 40 and between the high-temperature side seal rings 70 and the low-temperature side seal rings 80.

Abstract: In one embodiment, a heat exchanger is provided with an inside shell, an outside shell, a cooling portion, and an inlet nozzle. The inside shell has an inside space for flowing a fluid, and an opening portion for outflowing the fluid from the inside space. The outside shell covers the inside shell to form a first passage between them to flow the fluid outflowing from the opening portion. The cooling portion is disposed within the inside shell to cool the fluid within the inside space. The inlet nozzle has an inner pipe, an outer pipe, and an outlet pipe. The inner pipe flows the fluid into the inside space through the outside shell. The outer pipe covers the inner pipe to form a second passage between them and has its one end connected to the outside shell to communicate the second passage with the first passage, and its other end connected to the inner pipe on the outside of the outside shell to seal the second passage to flow the fluid partly from the first passage to the second passage.

Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that generates steam and an exhaust gas, an absorption tower that allows carbon dioxide contained in the exhaust gas to be absorbed in an absorption liquid, a regeneration tower that discharges a carbon dioxide gas from the absorption liquid supplied from the absorption tower, a reboiler that heats the absorption liquid of the regeneration tower, a turbine that is rotationally driven by the steam, a first condenser, a second condenser, and a desuperheater. The first condenser generates condensate by cooling steam exhausted from the turbine. The second condenser condenses the carbon dioxide gas while using a part of the condensate as cooling water, and generates hot water. The desuperheater lowers the temperature of the steam exhausted from the turbine by spraying the hot water, and supplies the steam at lowered temperature to the reboiler.

Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that produces steam and generates an exhaust gas, a first turbine that is rotationally driven by the steam, an absorption tower allows carbon dioxide contained in the exhaust gas to be absorbed into an absorption liquid, a regeneration tower that discharges the carbon dioxide gas from the absorption liquid supplied from the absorption tower, a condenser that removes moisture from the carbon dioxide gas, discharged from the regeneration tower, by condensing the carbon dioxide gas using cooling water, a compressor that compresses the carbon dioxide gas from which the moisture is removed by the condenser, and a second turbine that drives the compressor. The steam produced by the cooling water recovering the heat from the carbon dioxide gas in the condenser is supplied to the first turbine or the second turbine.

Abstract: According to one embodiment, a carbon-dioxide-recovery-type steam power generation system comprises a boiler that generates steam and an exhaust gas, an absorption tower that allows carbon dioxide contained in the exhaust gas to be absorbed in an absorption liquid, a regeneration tower that regenerates discharges a carbon dioxide gas from the absorption liquid, a reboiler that heats the absorption liquid of the regeneration tower, a turbine that is rotationally driven by the steam, a condenser that generates condensate by cooling steam exhausted from the turbine, a compressor that compresses the carbon dioxide gas, and a cooler that cools the carbon dioxide gas, which has been compressed by the compressor, while using a part of the condensate as cooling water. The reboiler is supplied with steam from the turbine and steam generated by the cooling of the carbon dioxide gas at the cooler.

Abstract: In one embodiment, a steam device includes a high-temperature member and a low-temperature member. One surface of the high-temperature member is exposed to high-temperature steam, and the other surface is cooled by cooling steam having a temperature lower than the high-temperature steam. The low-temperature member is disposed to face the high-temperature member with a passage for the cooling steam therebetween and is formed of a material having a heat resistance lower than that of the high-temperature member.

Abstract: According to the present invention, provided is a flange fastening section comprising a gasket including expanded graphite capable of being accommodated in a groove of a flange for connecting a plurality of pipings and at least one O-ring 1 arranged on an outer periphery of the gasket 2, wherein the O-ring 1 has a cavity through which working fluid may flow, an inlet piping 3 into which the working fluid flows and an outlet piping 4 out of which the working fluid flows, and a cooling system of the flange fastening section.

Abstract: A pigment ink composition has high transparency and good color characteristics such as a high OD that are not inferior to those of dyes, even though pigment particles are used, and also has good weatherability and remaining ability on the coating and printing medium surface that are inherent to pigment particles. The pigment ink composition contains pigment particles including at least needle pigment particles, a dispersant, and a solvent. The needle pigment particles have a needle shape with an aspect ratio of at least 3, an average aspect ratio of at least 5 and at most 7, an average short dimension of at least 20 nm and at most 30 nm, and a distribution of short dimension with a standard deviation of 2.0 nm or less. The needle pigment particles are covered with the dispersant.

Abstract: In one embodiment, a nickel-base alloy for forging or rolling contains, in weight %, carbon (C): 0.05 to 0.2, silicon (Si) 0.01 to 1, manganese (Mn): 0.01 to 1, cobalt (Co): 5 to 20, iron (Fe): 0.01 to 10, chromium (Cr): 15 to 25, and one kind or two kinds or more of molybdenum (Mo), tungsten (W) and rhenium (Re), with Mo+(W+Re)/2: 8 to 25, the balance being nickel (Ni) and unavoidable impurities.

Abstract: A steam turbine power plant 10 includes a steam turbine facility 20 in which power is generated by driving steam turbines with steam from a boiler 21 generating steam using combustion heat and steam from a heat collecting steam generator 31 generating steam using sunlight, and a carbon dioxide collecting facility 60 in which carbon dioxide contained in combustion gas from the boiler 21 and the like is collected. Further, steam from the heat collecting steam generator 31 is delivered to a solar heat steam turbine 32 and performs expansion work, and thereafter part of the steam is delivered to the carbon dioxide collecting facility 60 via a pipe 51 and heats the absorbing liquid 100 in the recovery tower 80.

Abstract: A steam turbine 10 is provided with a double-structure comprising an inner casing 20 and an outer casing 21. A turbine rotor 22, in which plural stages of moving blades 24 are circumferentially implanted, is operatively disposed in inner casing 20. A diaphragm outer ring 25 and a diaphragm inner ring are disposed along the circumferential direction in inner casing 20. Stationary blades 27 are circumferentially provided between diaphragm outer ring 25 and the diaphragm inner ring, so that diaphragm outer ring 25, the diaphragm inner ring and stationary blades 27 form a stage of stationary blades. The stages of the stationary blades are arranged alternately with the stages of moving blades 24 in the axial direction of turbine rotor 22. A cooling medium passage 40 for passing a cooling medium CM which is supplied through a supply pipe 45 is formed between inner casing 20 and diaphragm outer ring 25.