Fission Product Release from Molten U/Al Alloy Fuel: A Vapor Transpiration Model
Abstract
This report describes the application of a vapor transportation model to fission product release data obtained for uranium/aluminum alloy fuel during early Oak Ridge fuel melt experiments. The Oak Ridge data validates the vapor transpiration model and suggests that iodine and cesium are released from the molten fuel surface in elemental form while tellurium and ruthenium are released as oxides. Cesium iodide is postulated to form in the vapor phase outside of the fuel matrix. Kinetic data indicates that cesium iodide can form from Cs atoms and diatomic iodine in the vapor phase. Temperatures lower than those capable of melting fuel are necessary in order to maintain a sufficient I2 concentration. At temperatures near the fuel melting point, cesium can react with iodine atoms to form CsI only on solid surfaces such as aerosols.
- Authors:
- Publication Date:
- Research Org.:
- Savannah River Site (US)
- Sponsoring Org.:
- US Department of Energy (US)
- OSTI Identifier:
- 782823
- Report Number(s):
- DPST-84-477
TRN: US0103504
- DOE Contract Number:
- AC09-76SR00001
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 26 Jun 2001
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; URANIUM ALLOYS; ALUMINIUM ALLOYS; FLOW MODELS; CESIUM IODIDES; FISSION PRODUCT RELEASE; IODINE; KINETICS; MELTING POINTS; RUTHENIUM OXIDES; TELLURIUM OXIDES; EVAPORATION
Citation Formats
Whitkop, P.G. Fission Product Release from Molten U/Al Alloy Fuel: A Vapor Transpiration Model. United States: N. p., 2001.
Web. doi:10.2172/782823.
Whitkop, P.G. Fission Product Release from Molten U/Al Alloy Fuel: A Vapor Transpiration Model. United States. doi:10.2172/782823.
Whitkop, P.G. Tue .
"Fission Product Release from Molten U/Al Alloy Fuel: A Vapor Transpiration Model". United States.
doi:10.2172/782823. https://www.osti.gov/servlets/purl/782823.
@article{osti_782823,
title = {Fission Product Release from Molten U/Al Alloy Fuel: A Vapor Transpiration Model},
author = {Whitkop, P.G.},
abstractNote = {This report describes the application of a vapor transportation model to fission product release data obtained for uranium/aluminum alloy fuel during early Oak Ridge fuel melt experiments. The Oak Ridge data validates the vapor transpiration model and suggests that iodine and cesium are released from the molten fuel surface in elemental form while tellurium and ruthenium are released as oxides. Cesium iodide is postulated to form in the vapor phase outside of the fuel matrix. Kinetic data indicates that cesium iodide can form from Cs atoms and diatomic iodine in the vapor phase. Temperatures lower than those capable of melting fuel are necessary in order to maintain a sufficient I2 concentration. At temperatures near the fuel melting point, cesium can react with iodine atoms to form CsI only on solid surfaces such as aerosols.},
doi = {10.2172/782823},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 26 00:00:00 EDT 2001},
month = {Tue Jun 26 00:00:00 EDT 2001}
}
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