Validation of evaluation model for analysis of steam reformer in HTGR hydrogen production plant

Ishii, Katsunori  ; Aoki, Takeshi  ; Isaka, Kazuyoshi; Noguchi, Hiroki  ; Shimizu, Atsushi ; Sato, Hiroyuki  

JAEA initiated High Temperature engineering Test Reactor (HTTR) heat application test project to establish coupling technologies between HTGR and a hydrogen production plant necessary to achieve large-scale, low cost, and carbon-free hydrogen production. One important element for the coupling technologies is a system analysis code which can simulate dynamic behavior of a HTGR hydrogen production system to design a plant control system for the effects of circulated helium heat through both facilities. The code is required to deal with a complex system which involves several subsystems and different physics with different timescales. As a first step of the development, we developed a heat and mass balance evaluation model of a helium-heated steam reformer. This report will present the outline of the developed model and simulation results with comparison to the experimental results.