Evaluation of high temperature gas reactor for demanding cogeneration load follow

コジェネレーション高温ガス炉システムにおける電力及び熱負荷追従運転の評価

Yan, X. ; 佐藤 博之  ; 橘 幸男 ; 國富 一彦 ; 日野 竜太郎

Yan, X.; Sato, Hiroyuki; Tachibana, Yukio; Kunitomi, Kazuhiko; Hino, Ryutaro

This paper reports the results of JAEA evaluation on the high temperature gas reactor (HTGR) to perform duties of demanding cogeneration load follow. The evaluation results in a plant design based on materials and design codes developed with JAEA operating test reactor and equipment technologies validated by test. The 600MWt-HTGR plant generates electricity efficiently by gas turbine and 900C heat by a topping heater. The heater couples via a heat transport loop to industrial facility that consumes the high temperature heat to yield heat product such as hydrogen fuel, steel or chemical. Original control methods are proposed to automate between the load duties. Equipment challenges are addressed in severe operation conditions. Performance limits of cogeneration load following are quantified from the plant system simulation to a range of bounding events including a loss of either load and a rapid peaking of electricity.