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Title: Preliminary analysis of graphite dust releasing behavior in accident for HTR

Abstract

The behavior of the graphite dust is important to the safety of High Temperature Gas-cooled Reactors. This study investigated the flow of graphite dust in helium mainstream. The analysis of the stresses acting on the graphite dust indicated that gas drag played the absolute leading role. Based on the understanding of the importance of gas drag, an experimental system is set up for the research of dust releasing behavior in accident. Air driven by centrifugal fan is used as the working fluid instead of helium because helium is expensive, easy to leak which make it difficult to seal. The graphite particles, with the size distribution same as in HTR, are added to the experiment loop. The graphite dust releasing behavior at the loss-of-coolant accident will be investigated by a sonic nozzle. (authors)

Authors:
; ; ;  [1]
  1. Inst. of Nuclear and New Energy Technology, Tsinghua Univ., Beijing100084 (China)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22105968
Resource Type:
Conference
Resource Relation:
Conference: ICAPP '12: 2012 International Congress on Advances in Nuclear Power Plants, Chicago, IL (United States), 24-28 Jun 2012; Other Information: Country of input: France; 10 refs.; Related Information: In: Proceedings of the 2012 International Congress on Advances in Nuclear Power Plants - ICAPP '12| 2799 p.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AIR; BLOWERS; DRAG; DUSTS; GRAPHITE; HELIUM; HTGR TYPE REACTORS; LOSS OF COOLANT; NOZZLES; PARTICLE SIZE; REACTOR SAFETY; STRESS ANALYSIS; WORKING FLUIDS

Citation Formats

Peng, W., Yang, X. Y., Yu, S. Y., and Wang, J. Preliminary analysis of graphite dust releasing behavior in accident for HTR. United States: N. p., 2012. Web.
Peng, W., Yang, X. Y., Yu, S. Y., & Wang, J. Preliminary analysis of graphite dust releasing behavior in accident for HTR. United States.
Peng, W., Yang, X. Y., Yu, S. Y., and Wang, J. Sun . "Preliminary analysis of graphite dust releasing behavior in accident for HTR". United States.
@article{osti_22105968,
title = {Preliminary analysis of graphite dust releasing behavior in accident for HTR},
author = {Peng, W. and Yang, X. Y. and Yu, S. Y. and Wang, J.},
abstractNote = {The behavior of the graphite dust is important to the safety of High Temperature Gas-cooled Reactors. This study investigated the flow of graphite dust in helium mainstream. The analysis of the stresses acting on the graphite dust indicated that gas drag played the absolute leading role. Based on the understanding of the importance of gas drag, an experimental system is set up for the research of dust releasing behavior in accident. Air driven by centrifugal fan is used as the working fluid instead of helium because helium is expensive, easy to leak which make it difficult to seal. The graphite particles, with the size distribution same as in HTR, are added to the experiment loop. The graphite dust releasing behavior at the loss-of-coolant accident will be investigated by a sonic nozzle. (authors)},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {7}
}

Conference:
Other availability
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