skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Simulation of Loss of RHRS Sequences in the Almaraz NPP during Mid-loop Operation using TRACE Code

Abstract

In the framework of different international and national projects sponsored by the Spanish nuclear regulatory body, Consejo de Seguridad Nuclear, and the energy industry of Spain, UNESA, one of the most important objectives is the maintenance and developing of Spanish NPP models for different codes, such as RELAP5 and TRACE. In this context, and due to the risk importance of the loss of RHRS at mid-loop conditions, our group has developed a mid-loop model of Almaraz NPP with the TRACE code. During this kind of transients the reflux condensation is one of the cooling mechanisms anticipated in the abnormal operational procedure of loss of RHRS at mid-loop level. In this sense, several simulations of loss of the RHRS are being performed attending to different plant states, such as primary closed or open (different path vents were considered), availability of steam generators, power levels, primary inventory and different secondary conditions. These parametric analyses allow us to check the capability of this cooling mechanism at different plant configurations and to apply them to the success criteria of the reflux condensation mechanism. (authors)

Authors:
; ;  [1]
  1. Departamento Sistemas Energeticos. ETSI MINAS. Universidad Politecnica de Madrid, Rios Rosas, 21, 28003 Madrid (Spain)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
21021053
Resource Type:
Conference
Resource Relation:
Conference: 2006 International congress on advances in nuclear power plants - ICAPP'06, Reno - Nevada (United States), 4-8 Jun 2006; Other Information: Country of input: France; 9 refs; Related Information: In: Proceedings of the 2006 international congress on advances in nuclear power plants - ICAPP'06, 2734 pages.
Country of Publication:
United States
Language:
English
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; AFTER-HEAT REMOVAL; AVAILABILITY; CONFIGURATION; COOLING; HAZARDS; INDUSTRY; INVENTORIES; LOSSES; NUCLEAR POWER PLANTS; OPERATION; PARAMETRIC ANALYSIS; SIMULATION; STEAM GENERATORS

Citation Formats

Queral, Cesar, Gonzalez, Isaac, and Exposito, Antonio. Simulation of Loss of RHRS Sequences in the Almaraz NPP during Mid-loop Operation using TRACE Code. United States: N. p., 2006. Web.
Queral, Cesar, Gonzalez, Isaac, & Exposito, Antonio. Simulation of Loss of RHRS Sequences in the Almaraz NPP during Mid-loop Operation using TRACE Code. United States.
Queral, Cesar, Gonzalez, Isaac, and Exposito, Antonio. 2006. "Simulation of Loss of RHRS Sequences in the Almaraz NPP during Mid-loop Operation using TRACE Code". United States.
@article{osti_21021053,
title = {Simulation of Loss of RHRS Sequences in the Almaraz NPP during Mid-loop Operation using TRACE Code},
author = {Queral, Cesar and Gonzalez, Isaac and Exposito, Antonio},
abstractNote = {In the framework of different international and national projects sponsored by the Spanish nuclear regulatory body, Consejo de Seguridad Nuclear, and the energy industry of Spain, UNESA, one of the most important objectives is the maintenance and developing of Spanish NPP models for different codes, such as RELAP5 and TRACE. In this context, and due to the risk importance of the loss of RHRS at mid-loop conditions, our group has developed a mid-loop model of Almaraz NPP with the TRACE code. During this kind of transients the reflux condensation is one of the cooling mechanisms anticipated in the abnormal operational procedure of loss of RHRS at mid-loop level. In this sense, several simulations of loss of the RHRS are being performed attending to different plant states, such as primary closed or open (different path vents were considered), availability of steam generators, power levels, primary inventory and different secondary conditions. These parametric analyses allow us to check the capability of this cooling mechanism at different plant configurations and to apply them to the success criteria of the reflux condensation mechanism. (authors)},
doi = {},
url = {https://www.osti.gov/biblio/21021053}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jul 01 00:00:00 EDT 2006},
month = {Sat Jul 01 00:00:00 EDT 2006}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: