Kabushiki Kaisha Toshiba

Central Research Institute of Electric Power Industry

Shigeo Kasai

Tsuneji Kameda

Kazuya Yamada

Masato Yoshino

Yasuo Takagi

Kentaro Matsunaga

Seiji Fujiwara

Shoko Suyama

Hisao Watanabe

Daisuke Horikawa

Hiroshi Nakamura

Hiroyuki Yamauchi

Masahiko Yamada

Yoshiyasu Ito

Masatoshi Kawashima

Yuko Kawajiri

Tsugio Yokoyama

Masafumi Komai

Sadao Hattori

Norihiko Handa

Takatoshi Asada

Tohru Iijima

Morihiko Sato

Hisao Oomura

Shinichi Makino

Ryoji Yoshimura

Makoto Ono

Kenji Ogura

Junko Matsuda

Megumu Yoshida

Katsutada Aoki

A hydrogen production system includes: a steam generator heating supplied raw water and generating steam; an electrolytic cell receiving the steam and generating hydrogen and oxygen through a high temperature electrolysis; a cooling unit cooling an unreacted part of the steam in the high temperature electrolysis and changing the unreacted part of the steam into steam condensate; a gas/liquid separator performing gas/liquid separation on the generated hydrogen and the generated steam condensate; a hydrogen compression unit compressing the separated hydrogen and transmitting thermal energy generated when the hydrogen is compressed, to the raw water; and a hydrogen storage unit storing the compressed hydrogen.

Hydrogen production system and method for producing hydrogen

A hydrogen production system that achieves highly-efficient hydrogen production even when hydrogen is produced by using the plurality of cell stacks is provided. A hydrogen production system includes a plurality of cell stacks provided within a reaction containment, the cell stacks generating hydrogen by high temperature steam electrolysis by supplying steam to the plurality of cell stacks, a first flow path guiding the steam to each of the cell stacks, a second flow path causing a carrier gas containing air as a main component to flow into the reaction containment, and a flow regulation device provided at an inlet of the steam in each of the cell stacks, the flow regulation device regulating a flow rate of the steam caused to flow into each of the cell stacks to be uniform.

In one embodiment, an electrical power storage system using hydrogen includes a power generation unit generating power using hydrogen and oxidant gas and an electrolysis unit electrolyzing steam. The electrical power storage system includes a hydrogen storage unit storing hydrogen generated by the electrolysis and supplying the hydrogen to the power generation unit during power generation, a high-temperature heat storage unit storing high temperature heat generated accompanying the power generation and supplying the heat to the electrolysis unit during the electrolysis, and a low-temperature heat storage unit storing low-temperature heat, which is exchanged in the high-temperature heat storage unit and generating with this heat the steam supplied to the electrolysis unit.

Electrical power storage system using hydrogen and method for storing electrical power using hydrogen

A fast reactor comprises a core composed of nuclear fuel, a core barrel surrounding an outer periphery of the core, an annular reflector surrounding an outer periphery of the core barrel, a partition wall structure surrounding an outer periphery of the annular reflector and supporting the core barrel by a supporting structure arranged radially of the fast reactor, the partition wall structure constituting an inner wall of a coolant passage for a primary coolant, a neutron shield surrounding an outer periphery of the partition wall structure and disposed in the coolant passage, a reactor vessel surrounding an outer periphery of the neutron shield and having an inner wall constituting an outer wall of the coolant passage, and a guard vessel surrounding an outer periphery of the reactor vessel.

Fast reactor having reflector control system

Growing community of inventors

Kamakura, Japan

Shigeo Kasai