Kabushiki Kaisha Toshiba

Fumio Otomo

Hisashi Matsuda

Takeshi Watanabe

Tatsuro Uchida

Asako Inomata

Yoshitaka Fukuyama

Hiroyuki Kawagishi

Yoshihiro Aburatani

Hiromitsu Iijima

Masaharu Utsunomiya

Yoshitake Fukuyama

Kazuhiro Kitayama

A turbine blade cascade structure includes a plurality of blades arranged in series in a circumferential direction on a wall surface, in which a corner portion defined by the wall surface and a front edge portion of each of blade bodies supported by the wall surface, to which a working fluid flows, includes a cover portion (fillet) that extends toward an upstream side of a flow of the working fluid. The turbine blade cascade structure is capable of reducing the secondary flow loss of the secondary flow in spite of the fluctuation of an incident angle of the working fluid flowing to the front edge portion of the blade body.

Turbine cascade structure

Embodiments of the invention provide an IGCC which achieves improved plant thermal efficiency by using a cooling steam supply system that cools the high-temperature sections of the gas turbine . Embodiments of the invention further provide and IGCC in which the cooling steam recovery system recovers steam after cooling the gas-turbine high-temperature section and makes practical re-use of the energy and substances within the system. Therefore, embodiments of the invention can reduce or eliminate the degradation of certain equipment by cooling the high-temperature sections. Methods are provided for increasing the thermal efficiency o an IGCC.

Integrated coal gasification combined cycle power generator

A gas turbine plant comprises an air compressor, a gas turbine combustor and a gas turbine, which are operatively connected in series. In the gas turbine plant, an air compressor shaft is accommodated in the air compressor and composed of discs piled up along an axial direction of the air compressor shaft, a gas turbine shaft is accommodated in the gas turbine and composed of discs piled up along an axial direction of the gas turbine shaft, and an intermediate shaft is interposed between the air compressor shaft and the gas turbine shaft. At least one of the discs of the air compressor shaft and the discs of the gas turbine shaft are provided with bulged portions each having approximately a hanging bell shape or trapezoidal shape.

Gas turbine plant

The disclosed measuring apparatus can measure a predetermined physical quantity (e.g., temperature) of a coloring member (e.g., liquid crystal) whose color condition changes according to change of the physical quantity. The measuring apparatus comprises: a coloring member (2) whose color condition changes according to change of a predetermined physical quantity; a color detecting section (5) for detecting the color condition of the coloring member; a data base section (8) for constructing a three-dimensional color space (10) having three coordinate axes each corresponding to each of tristimulus values of color of the coloring member, relationship between the predetermined physical quantity and the tristimulus values being represented in the three-dimensional color space; and a physical quantity calculating section (9) for calculating the physical quantity of an object (1) to be measure on the basis of the tristimulus values of color of the coloring member detected by the color detecting section (5) and with reference to the data base section (8).

Measuring apparatus and measuring method

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Zama, Japan

Fumio Otomo