Mitsubishi Heavy Industries Limited

Kabushiki Kaisha Toshiba

Manabu Maeda

Hidekazu Uehara

Kuniaki Aoyama

Kei Inoue

Kazuhiko Yamashita

Toshiyuki Osada

Takumi Hori

Zenichi Yoshida

Hiroshi Funakoshi

Masashi Tagawa

Kazuta Kobayashi

A rotary machine has a housing that houses a fluid in a supercritical state, a rotary shaft that penetrates the housing, rotation rings that rotate integrally with the rotary shaft, and stationary rings that contact the rotation rings when the rotary shaft is stopped, the stationary rings being positioned in a state in which sealing gaps are defined between the rotation rings and the stationary rings when the rotary shaft rotates, a circulating pipe path that supplies a portion of the fluid to inlet portions of the sealing gaps, a temperature-adjusting device that adjusts a temperature of the fluid in the circulating pipe path, and a control unit that controls operation of the temperature-adjusting device so as to heat the inlet portions of the sealing gaps to a predetermined temperature before the rotary shaft is driven.

Rotary machine

A solar-thermal gas turbine generator is equipped with a compressor, a heat receiver, and a turbine. Additionally, there is a generator that is driven by the solar-thermal gas turbine to generate power; and a steam power generation cycle in which high-temperature air exhausted from the turbine is introduced into a steam generator and in which a steam turbine that is operated with steam generated at the steam generator drives a generator to generator power, wherein a solar-thermal steam generator that generates steam by being heated with heat collected by the light collector is provided upstream of the steam turbine of the steam power generation cycle, and a distribution ratio for distributing the sunlight collected by the light collector to the heat receiver and the solar-thermal steam generator is adjusted in accordance with the sunlight intensity.

Solar-thermal gas turbine generator

A spent fuel storage rackaccording to the present invention is installed in a fuel storage pool of a nuclear facility, and has a rectangular parallelepiped shape forming a plurality of lattice-like cellsthat are configured to separately accommodate a plurality of fuel assemblies in a matrix of rows and columns. As shown in FIG., the spent fuel storage rackincludes: a baseconfigured to support lower parts of fuel assemblies, the baseforming a bottom surface of the spent fuel storage rack; an outer framelocated above the base, the outer frameforming an outermost periphery of the spent fuel storage rack; and a lattice bodydisposed inside the outer frame, the lattice bodyforming the lattice-like cells. The lattice bodyincludes: a main latticehaving a height equivalent to an active length of the fuel assembly; an upper latticedisposed above the main latticeso as to be fitted to an upper end of the main lattice; and a lower latticedisposed between the baseand the main latticeso as to be fitted to a lower end of the main lattice. Thus, the main latticecan be formed without welding, whereby the main latticecan be made of a boron-added stainless steel to which a sufficient amount of boron is added to absorb neutrons.

Spent fuel storage rack

Growing community of inventors

Tokyo, Japan

Manabu Maeda