Optimization of Power Distribution to Achieve Outlet Gas-Coolant Temperature of 950°C for HTTR

Kiyonobu Yamashlta, So Maruyama, Isao Murata, Ryuichi Shindo, Nozomu Fujimoto, Yukio Sudo, Tetsuo Nakata, Kazumi Tokuhara

Research output: Contribution to journalArticlepeer-review

Abstract

This report presents the optimization result with respect to the spatial power distribution of the High Temperature engineering Test Reactor (HTTR) core to achieve a high outlet coolant gas temperature of 950°C. At first, the power distribution optimization procedure was developed to achieve a high outlet coolant gas temperature while maintaining the fuel temperature as low as possible. Secondarily, the optimization procedure thus developed was applied for the power distribution design of the HTTR core. The maximum nominal fuel temperature was reduced about 300°C through the optimization and was 1,321°C. By the power distribution optimization, the maximum fuel temperature was maintained less than the fuel temperature design limit of 1,600°C, even accounting for the temperature increase at the hot spot and the anticipated operational occurrences.

Original languageEnglish
Pages (from-to)472-481
Number of pages10
Journaljournal of nuclear science and technology
Volume29
Issue number5
DOIs
Publication statusPublished - Jan 1 1992
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

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