Decay heat removal from a GFR core by natural convection

Wesley C. Williams; Pavel Hejzlar; Michael J. Driscoll

Decay heat removal from a GFR core by natural convection

Wesley C. Williams, Pavel Hejzlar, Michael J. Driscoll

Massachusetts Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

11 Scopus citations

Abstract

One of the primary challenges for Gas-cooled Fast Reactors (GFR) is decay heat removal after a loss of coolant accident (LOCA). Due to the fact that thermal gas cooled reactors currently under design rely on passive mechanisms to dissipate decay heat, there is a strong motivation to accomplish GFR core cooling through natural phenomena. This work investigates the potential of post-LOCA decay heat removal from a GFR core to a heat sink using an external convection loop. A model was developed in the form of the LOCA-COLA (Loss of Coolant Accident - Convection Loop Analysis) computer code as a means for ID steady state convective heat transfer loop analysis. The results show that decay heat removal by means of gas cooled natural circulation is feasible under elevated post-LOCA containment pressure conditions.

Original language	English
Title of host publication	Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04
Pages	624-636
Number of pages	13
State	Published - 2004
Externally published	Yes
Event	Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04 - Pittsburgh, PA, United States Duration: Jun 13 2004 → Jun 17 2004

Publication series

Name	Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04

Conference

Conference	Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04
Country/Territory	United States
City	Pittsburgh, PA
Period	06/13/04 → 06/17/04

Cite this

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title = "Decay heat removal from a GFR core by natural convection",

abstract = "One of the primary challenges for Gas-cooled Fast Reactors (GFR) is decay heat removal after a loss of coolant accident (LOCA). Due to the fact that thermal gas cooled reactors currently under design rely on passive mechanisms to dissipate decay heat, there is a strong motivation to accomplish GFR core cooling through natural phenomena. This work investigates the potential of post-LOCA decay heat removal from a GFR core to a heat sink using an external convection loop. A model was developed in the form of the LOCA-COLA (Loss of Coolant Accident - Convection Loop Analysis) computer code as a means for ID steady state convective heat transfer loop analysis. The results show that decay heat removal by means of gas cooled natural circulation is feasible under elevated post-LOCA containment pressure conditions.",

author = "Williams, {Wesley C.} and Pavel Hejzlar and Driscoll, {Michael J.}",

year = "2004",

language = "English",

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series = "Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04",

pages = "624--636",

booktitle = "Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04",

note = "Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04 ; Conference date: 13-06-2004 Through 17-06-2004",

}

Williams, WC, Hejzlar, P & Driscoll, MJ 2004, Decay heat removal from a GFR core by natural convection. in Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04. Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04, pp. 624-636, Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04, Pittsburgh, PA, United States, 06/13/04.

Decay heat removal from a GFR core by natural convection. / Williams, Wesley C.; Hejzlar, Pavel; Driscoll, Michael J.
Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04. 2004. p. 624-636 (Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Decay heat removal from a GFR core by natural convection

AU - Williams, Wesley C.

AU - Hejzlar, Pavel

AU - Driscoll, Michael J.

PY - 2004

Y1 - 2004

N2 - One of the primary challenges for Gas-cooled Fast Reactors (GFR) is decay heat removal after a loss of coolant accident (LOCA). Due to the fact that thermal gas cooled reactors currently under design rely on passive mechanisms to dissipate decay heat, there is a strong motivation to accomplish GFR core cooling through natural phenomena. This work investigates the potential of post-LOCA decay heat removal from a GFR core to a heat sink using an external convection loop. A model was developed in the form of the LOCA-COLA (Loss of Coolant Accident - Convection Loop Analysis) computer code as a means for ID steady state convective heat transfer loop analysis. The results show that decay heat removal by means of gas cooled natural circulation is feasible under elevated post-LOCA containment pressure conditions.

AB - One of the primary challenges for Gas-cooled Fast Reactors (GFR) is decay heat removal after a loss of coolant accident (LOCA). Due to the fact that thermal gas cooled reactors currently under design rely on passive mechanisms to dissipate decay heat, there is a strong motivation to accomplish GFR core cooling through natural phenomena. This work investigates the potential of post-LOCA decay heat removal from a GFR core to a heat sink using an external convection loop. A model was developed in the form of the LOCA-COLA (Loss of Coolant Accident - Convection Loop Analysis) computer code as a means for ID steady state convective heat transfer loop analysis. The results show that decay heat removal by means of gas cooled natural circulation is feasible under elevated post-LOCA containment pressure conditions.

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M3 - Conference contribution

AN - SCOPUS:10644296539

SN - 0894486802

SN - 9780894486807

T3 - Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04

SP - 624

EP - 636

BT - Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04

T2 - Proceedings of the 2004 International Congress on Advances in Nuclear Power Plants, ICAPP'04

Y2 - 13 June 2004 through 17 June 2004

ER -

Decay heat removal from a GFR core by natural convection

Abstract

Publication series

Conference

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