Ihi Corporation

Ishikawajima-harima Heavy Industries Co., Ltd.

Bhp Steel (jla) Pty. Ltd.

Ryo Akiyoshi

Toshiro Fujimori

Atsushi Hirata

Kunio Matsui

Shu Ogawa

Kazuo Miyoshi

Hideki Ogata

Koichi Fujita

Masayoshi Hori

Michitaro Hashiba

A heat storage system is provided that is capable of being manufactured at lower cost and has higher heat transmission efficiency. A heat storage system includes a heat storage material having a higher specific gravity in a solid phase than in a liquid phase, a heat storage tank for containing the heat storage material, a cooling side heat exchanger arranged at an upper section inside the heat storage tank and for cooling the heat storage material, a heating side heat exchanger arranged at a lower section inside the heat storage tank and for heating the heat storage material, and a wall surface heater for heating a side wall of the heat storage tank.

Heat storage system

The present disclosure relates to a boiler water supply preheater system which preheats water (boiler water supply) supplied to a boiler by a predetermined preheating means, wherein the preheating means is a Rankine cycle (thermal cycle) which moves heat of a waste heat source in the boiler to the boiler water supply to perform preheating and drives a generator to generate electric power using a heat medium.

Boiler water supply preheater system and boiler water supply preheating method

A casting roll (18) for a twin roll continuous caster comprises a roll body (19) made of a metal material having high rigidity and a sleeve (20) made of a metal material having high thermal conductivity for covering an outer periphery of the roll body (19). A plurality of load bearing members (23) with thicker width are provided peripherally on the outer periphery of the roll body (19), the load bearing members (23) being in contact with an inner periphery of the sleeve (20) and extending axially of the roll. A plurality of fins (24) with thinner width and shorter in height than the load bearing members (23) are provided on the inner periphery of the sleeve (20) between the adjacent load bearing members (23) and extending axially of the roll, cooling water passages (25) being provided in the form of gaps defined between the roll body (19) and the sleeve (20) thereby providing a roll having sufficiently high rigidity to prevent or at least minimise damage of the cooling water passages when the solidified shells are brought together between the rolls and/or having an enhanced heat transfer area.

Roll cooling structure for twin roll continuous caster

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Kawasaki, Japan

Ryo Akiyoshi