Abstract
The 5 MW nuclear heating reactor is a low temperature, low pressure, natural circulation and vessel type reactor. From the analysis of loss of power ATWS (anticipated transients without scram) accident in the original design of 5 MW nuclear heating reactor, after the safety valve opened a power oscillation with large amplitude is initiated. The large amplitude power oscillation is harmful to reactor safety and is not allowed. The oscillation is a kind of density wave instability. Under the loss of heat sink ATWS accident, the system enters into instability region because the reactor inlet subcooling increases along with the increasing of system pressure. This large amplitude oscillation can be eliminated if some appropriate ducts in the downcomer are set to reduce the dynamic time delay, and the water temperature of reactor inlet rises earlier that leads reactor inlet subcooling to less increasing.
Citation Formats
Jincai, Li, and Zuying, Gao.
A study on the instability of the dynamic process in a 5 MW nuclear heating reactor.
China: N. p.,
1992.
Web.
Jincai, Li, & Zuying, Gao.
A study on the instability of the dynamic process in a 5 MW nuclear heating reactor.
China.
Jincai, Li, and Zuying, Gao.
1992.
"A study on the instability of the dynamic process in a 5 MW nuclear heating reactor."
China.
@misc{etde_10145277,
title = {A study on the instability of the dynamic process in a 5 MW nuclear heating reactor}
author = {Jincai, Li, and Zuying, Gao}
abstractNote = {The 5 MW nuclear heating reactor is a low temperature, low pressure, natural circulation and vessel type reactor. From the analysis of loss of power ATWS (anticipated transients without scram) accident in the original design of 5 MW nuclear heating reactor, after the safety valve opened a power oscillation with large amplitude is initiated. The large amplitude power oscillation is harmful to reactor safety and is not allowed. The oscillation is a kind of density wave instability. Under the loss of heat sink ATWS accident, the system enters into instability region because the reactor inlet subcooling increases along with the increasing of system pressure. This large amplitude oscillation can be eliminated if some appropriate ducts in the downcomer are set to reduce the dynamic time delay, and the water temperature of reactor inlet rises earlier that leads reactor inlet subcooling to less increasing.}
place = {China}
year = {1992}
month = {May}
}
title = {A study on the instability of the dynamic process in a 5 MW nuclear heating reactor}
author = {Jincai, Li, and Zuying, Gao}
abstractNote = {The 5 MW nuclear heating reactor is a low temperature, low pressure, natural circulation and vessel type reactor. From the analysis of loss of power ATWS (anticipated transients without scram) accident in the original design of 5 MW nuclear heating reactor, after the safety valve opened a power oscillation with large amplitude is initiated. The large amplitude power oscillation is harmful to reactor safety and is not allowed. The oscillation is a kind of density wave instability. Under the loss of heat sink ATWS accident, the system enters into instability region because the reactor inlet subcooling increases along with the increasing of system pressure. This large amplitude oscillation can be eliminated if some appropriate ducts in the downcomer are set to reduce the dynamic time delay, and the water temperature of reactor inlet rises earlier that leads reactor inlet subcooling to less increasing.}
place = {China}
year = {1992}
month = {May}
}