THERMODYNAMICS AND TRANSPORT PROCESSES IN-REACTOR FUEL

被引：4

作者：

OLANDER, DR

机构：

[1] Department of Nuclear Engineering, University of California, Berkeley

来源：

PURE AND APPLIED CHEMISTRY | 1995年 / 67卷 / 06期

关键词：

D O I：

10.1351/pac199567061003

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Chemical thermodynamics and transport processes are inextricably linked in light-water reactor fuel rods. Two regimes can be identified, separated by their temperatures. During normal operation, the temperature at the center of the UO2 pellet usually does not exceed 1000 degrees C, and most of the important chemistry takes place at the periphery, which is separated from the Zircaloy cladding by a thin(tens of microns) gas-filled gap. The temperatures here are typically 350-600 degrees C. In a serious accident resulting in loss of cooling water circulating in the reactor's primary circuit, severe fuel damage may occur. Conditions in this regime encompass temperatures from similar to 1000 to 3000 degrees C, the state of water is steam rather than liquid, and the system total pressure may be as low as 1 atm. This paper reviews the important chemistry-transport phenomena that occur in the normal-operation and severe-fuel-damage regimes.

引用

页码：1003 / 1010

页数：8

共 14 条

[1]

Haste T.J., A Review of Axial Gas Communication in Oxide Fuel Rods, NRL Springfields Report DCO 7859, (1988)

[2]

Park K.H., Olander D.R., 74, (1991)

[3]

Heames T.J., Et al., VICTORIA, A Mechanistic Model of Radionuclide Behavior in the Reactor Coolant system under Severe Accident Conditions, (1992)

[4]

Allison C.M., Et al., Capabilities of the Integrated SCDAP/RELAP5/TRAP-MELT Severe Accident Computer Code, Internat. Symp. on Source Term Evaluation for Accident Conditions, (1985)

[5]

(1990)

[6]

Wang W., Olander D.R., 76, (1993)

[7]

Olander D.R., Materials Chemistry and Transport Modeling for Severe Accident Analyses in Light-Water Reactor

[8]

Petti D.A., Martinson Z.R., Hobbins R.R., Osetek D.J., Results from the PBF Severe Fuel Damage Test 4–1, 94, (1991)

[9]

Boureau G., Gerdanian P., 13, (1974)

[10]

Boureau G., Gerdanian P., 45, (1984)

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