Design of the intermediate heat exchanger for the high temperature gas-cooled reactor hydrogen cogeneration system, 1

Kato, Ryoma; Nishihara, Tetsuo ; Kunitomi, Kazuhiko 

Japan Atomic Energy Agency (JAEA) has been carrying out design studies of the Gas Turbine High Temperature Reactor 300 for Cogeneration (GTHTR300C). One of the key components in the GTHTR300C is an intermediate heat exchanger (IHX). The IHX for the GTHTR300C is rated 170 MWt and designed on the basis of the shell & tube type IHX adopted by the High Temperature engineering Test Reactor (HTTR). As a conceptual design, we selected the heat exchanger tube size which is based on heat transfer calculation, designed conceptual structure, and evaluated the primary stress in design condition. By the results of this study, the technical feasibility of the large size shell & tube type IHX for the GTHTR300C was verified.