Abstract
The reactor outlet coolant temperature of High Temperature Engineering Test Reactor (HTTR) aims to achieve extremely high temperature of 950degC. In order to mitigate a damage of control rod casing in high temperature environment, the two-step control rods insertion method was adopted. In case of reactor scram, the control rods in reflector region are inserted in the core immediately, then the control rods in fuel region are inserted automatically after the reactor outlet coolant temperature decreases down to 750degC or after the present time of 2400 sec is elapsed. This report describes the evaluation results of shutdown margin when the control rods in the fuel region are inserted after reactor scram. It was found from the present study that the shutdown margin with one control rod stuck is higher than 0.7% {Delta}k/k in the severest case. (author).
Murata, Isao;
Yamashita, Kiyonobu;
Maruyama, So;
Fujimoto, Nozomu;
Shindo, Ryuichi;
Sudo, Yukio
[1]
- Japan Atomic Energy Research Inst., Oarai, Ibaraki (Japan). Oarai Research Establishment
Citation Formats
Murata, Isao, Yamashita, Kiyonobu, Maruyama, So, Fujimoto, Nozomu, Shindo, Ryuichi, and Sudo, Yukio.
Evaluation of shut down margin in scram condition for High Temperature Engineering Test Reactor (HTTR).
Japan: N. p.,
1991.
Web.
Murata, Isao, Yamashita, Kiyonobu, Maruyama, So, Fujimoto, Nozomu, Shindo, Ryuichi, & Sudo, Yukio.
Evaluation of shut down margin in scram condition for High Temperature Engineering Test Reactor (HTTR).
Japan.
Murata, Isao, Yamashita, Kiyonobu, Maruyama, So, Fujimoto, Nozomu, Shindo, Ryuichi, and Sudo, Yukio.
1991.
"Evaluation of shut down margin in scram condition for High Temperature Engineering Test Reactor (HTTR)."
Japan.
@misc{etde_10117401,
title = {Evaluation of shut down margin in scram condition for High Temperature Engineering Test Reactor (HTTR)}
author = {Murata, Isao, Yamashita, Kiyonobu, Maruyama, So, Fujimoto, Nozomu, Shindo, Ryuichi, and Sudo, Yukio}
abstractNote = {The reactor outlet coolant temperature of High Temperature Engineering Test Reactor (HTTR) aims to achieve extremely high temperature of 950degC. In order to mitigate a damage of control rod casing in high temperature environment, the two-step control rods insertion method was adopted. In case of reactor scram, the control rods in reflector region are inserted in the core immediately, then the control rods in fuel region are inserted automatically after the reactor outlet coolant temperature decreases down to 750degC or after the present time of 2400 sec is elapsed. This report describes the evaluation results of shutdown margin when the control rods in the fuel region are inserted after reactor scram. It was found from the present study that the shutdown margin with one control rod stuck is higher than 0.7% {Delta}k/k in the severest case. (author).}
place = {Japan}
year = {1991}
month = {Oct}
}
title = {Evaluation of shut down margin in scram condition for High Temperature Engineering Test Reactor (HTTR)}
author = {Murata, Isao, Yamashita, Kiyonobu, Maruyama, So, Fujimoto, Nozomu, Shindo, Ryuichi, and Sudo, Yukio}
abstractNote = {The reactor outlet coolant temperature of High Temperature Engineering Test Reactor (HTTR) aims to achieve extremely high temperature of 950degC. In order to mitigate a damage of control rod casing in high temperature environment, the two-step control rods insertion method was adopted. In case of reactor scram, the control rods in reflector region are inserted in the core immediately, then the control rods in fuel region are inserted automatically after the reactor outlet coolant temperature decreases down to 750degC or after the present time of 2400 sec is elapsed. This report describes the evaluation results of shutdown margin when the control rods in the fuel region are inserted after reactor scram. It was found from the present study that the shutdown margin with one control rod stuck is higher than 0.7% {Delta}k/k in the severest case. (author).}
place = {Japan}
year = {1991}
month = {Oct}
}