Nuclear design of the high-temperature engineering test reactor (HTTR)

Kiyonobu Yamashita, Ryuichi Shindo, Isao Murata, So Maruyama, Nozomu Fujimoto, Takeshi Takeda

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

The high-temperature engineering test reactor has been designed whose outlet gas temperature is 950°C. That is the highest temperature in the world for a block-type high-temperature gas-cooled reactor. The power distribution in the core was optimized by changing the uranium enrichment to maintain the fuel temperature at less than the limit (1600°C). Deviation from the optimized distribution due to the burnup of fissile materials was avoided by flattening time-dependent changes in local reactivities. Flattening was achieved by optimizing the specifications of the burnable poisons. Control rod destruction of the optimized power distribution was avoided by limiting the depth of insertion. The insertion depth of the control rods is limited by reducing the excess reactivity of the whole core by the burnable poisons to the minimum value necessary for operations.

Original languageEnglish
Pages (from-to)212-228
Number of pages17
JournalNuclear Science and Engineering
Volume122
Issue number2
DOIs
Publication statusPublished - Jan 1 1996

Fingerprint

High temperature engineering
Control rods
High temperature gas reactors
Uranium
Temperature
Specifications
Gases

All Science Journal Classification (ASJC) codes

  • Nuclear Energy and Engineering

Cite this

Nuclear design of the high-temperature engineering test reactor (HTTR). / Yamashita, Kiyonobu; Shindo, Ryuichi; Murata, Isao; Maruyama, So; Fujimoto, Nozomu; Takeda, Takeshi.

In: Nuclear Science and Engineering, Vol. 122, No. 2, 01.01.1996, p. 212-228.

Research output: Contribution to journalArticle

Yamashita, K, Shindo, R, Murata, I, Maruyama, S, Fujimoto, N & Takeda, T 1996, 'Nuclear design of the high-temperature engineering test reactor (HTTR)', Nuclear Science and Engineering, vol. 122, no. 2, pp. 212-228. https://doi.org/10.13182/NSE96-A24156
Yamashita, Kiyonobu ; Shindo, Ryuichi ; Murata, Isao ; Maruyama, So ; Fujimoto, Nozomu ; Takeda, Takeshi. / Nuclear design of the high-temperature engineering test reactor (HTTR). In: Nuclear Science and Engineering. 1996 ; Vol. 122, No. 2. pp. 212-228.
@article{625f4e308adb4d22bf93bcce5f2555a7,
title = "Nuclear design of the high-temperature engineering test reactor (HTTR)",
abstract = "The high-temperature engineering test reactor has been designed whose outlet gas temperature is 950°C. That is the highest temperature in the world for a block-type high-temperature gas-cooled reactor. The power distribution in the core was optimized by changing the uranium enrichment to maintain the fuel temperature at less than the limit (1600°C). Deviation from the optimized distribution due to the burnup of fissile materials was avoided by flattening time-dependent changes in local reactivities. Flattening was achieved by optimizing the specifications of the burnable poisons. Control rod destruction of the optimized power distribution was avoided by limiting the depth of insertion. The insertion depth of the control rods is limited by reducing the excess reactivity of the whole core by the burnable poisons to the minimum value necessary for operations.",
author = "Kiyonobu Yamashita and Ryuichi Shindo and Isao Murata and So Maruyama and Nozomu Fujimoto and Takeshi Takeda",
year = "1996",
month = "1",
day = "1",
doi = "10.13182/NSE96-A24156",
language = "English",
volume = "122",
pages = "212--228",
journal = "Nuclear Science and Engineering",
issn = "0029-5639",
publisher = "American Nuclear Society",
number = "2",

}

TY - JOUR

T1 - Nuclear design of the high-temperature engineering test reactor (HTTR)

AU - Yamashita, Kiyonobu

AU - Shindo, Ryuichi

AU - Murata, Isao

AU - Maruyama, So

AU - Fujimoto, Nozomu

AU - Takeda, Takeshi

PY - 1996/1/1

Y1 - 1996/1/1

N2 - The high-temperature engineering test reactor has been designed whose outlet gas temperature is 950°C. That is the highest temperature in the world for a block-type high-temperature gas-cooled reactor. The power distribution in the core was optimized by changing the uranium enrichment to maintain the fuel temperature at less than the limit (1600°C). Deviation from the optimized distribution due to the burnup of fissile materials was avoided by flattening time-dependent changes in local reactivities. Flattening was achieved by optimizing the specifications of the burnable poisons. Control rod destruction of the optimized power distribution was avoided by limiting the depth of insertion. The insertion depth of the control rods is limited by reducing the excess reactivity of the whole core by the burnable poisons to the minimum value necessary for operations.

AB - The high-temperature engineering test reactor has been designed whose outlet gas temperature is 950°C. That is the highest temperature in the world for a block-type high-temperature gas-cooled reactor. The power distribution in the core was optimized by changing the uranium enrichment to maintain the fuel temperature at less than the limit (1600°C). Deviation from the optimized distribution due to the burnup of fissile materials was avoided by flattening time-dependent changes in local reactivities. Flattening was achieved by optimizing the specifications of the burnable poisons. Control rod destruction of the optimized power distribution was avoided by limiting the depth of insertion. The insertion depth of the control rods is limited by reducing the excess reactivity of the whole core by the burnable poisons to the minimum value necessary for operations.

UR - http://www.scopus.com/inward/record.url?scp=0030084047&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030084047&partnerID=8YFLogxK

U2 - 10.13182/NSE96-A24156

DO - 10.13182/NSE96-A24156

M3 - Article

VL - 122

SP - 212

EP - 228

JO - Nuclear Science and Engineering

JF - Nuclear Science and Engineering

SN - 0029-5639

IS - 2

ER -