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Study on the instability of flow drift and multichannel oscillation in a low pressure natural circulation system

Abstract

By using the program STEADY-LHTR, the stability of two-phase flow system of a 200 MW nuclear heating reactor being designed by INET. Tsinghua University, has been studied. This article describes the instability of Ledinegg and multichannel oscillation and its mechanism. A great deal of calculations and analyses for flow characteristics, which are shown by figures and tables, of the 200 MW nuclear heating reactor with natural circulation system have been completed. The results show that the natural circulation flow rate in the 200 MW nuclear heating reactor is slightly increasing with the core inlet temperature rising, under nominal operating conditions the flow has good stability. However, as the core inlet temperature approaches to 155 c degree at 2.0 MPa pressure the Ledinegg instability and multichannel oscillation instability will occur in the natural circulation system of the 200 MW nuclear heating reactor.
Authors:
Junxiao, He; Zuying, Gao [1] 
  1. Qinghua Univ., Beijing, BJ (China). Inst. of Nuclear Energy Technology
Publication Date:
May 01, 1992
Product Type:
Technical Report
Report Number:
CNIC-00628; TSHUNE-0042.
Reference Number:
SCA: 210900; PA: AIX-24:039065; SN: 93000980041
Resource Relation:
Other Information: PBD: May 1992
Subject:
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; NATURAL CONVECTION; INSTABILITY; DIAGRAMS; FLOW RATE; MEDIUM PRESSURE; PROCESS HEAT REACTORS; S CODES; TEMPERATURE DEPENDENCE; TWO-PHASE FLOW; 210900
OSTI ID:
10145274
Research Organizations:
China Nuclear Information Centre, Beijing, BJ (China)
Country of Origin:
China
Language:
Chinese
Other Identifying Numbers:
Other: ON: DE93623815; TRN: CN9300265039065
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[14] p.
Announcement Date:
Jul 05, 2005

Citation Formats

Junxiao, He, and Zuying, Gao. Study on the instability of flow drift and multichannel oscillation in a low pressure natural circulation system. China: N. p., 1992. Web.
Junxiao, He, & Zuying, Gao. Study on the instability of flow drift and multichannel oscillation in a low pressure natural circulation system. China.
Junxiao, He, and Zuying, Gao. 1992. "Study on the instability of flow drift and multichannel oscillation in a low pressure natural circulation system." China.
@misc{etde_10145274,
title = {Study on the instability of flow drift and multichannel oscillation in a low pressure natural circulation system}
author = {Junxiao, He, and Zuying, Gao}
abstractNote = {By using the program STEADY-LHTR, the stability of two-phase flow system of a 200 MW nuclear heating reactor being designed by INET. Tsinghua University, has been studied. This article describes the instability of Ledinegg and multichannel oscillation and its mechanism. A great deal of calculations and analyses for flow characteristics, which are shown by figures and tables, of the 200 MW nuclear heating reactor with natural circulation system have been completed. The results show that the natural circulation flow rate in the 200 MW nuclear heating reactor is slightly increasing with the core inlet temperature rising, under nominal operating conditions the flow has good stability. However, as the core inlet temperature approaches to 155 c degree at 2.0 MPa pressure the Ledinegg instability and multichannel oscillation instability will occur in the natural circulation system of the 200 MW nuclear heating reactor.}
place = {China}
year = {1992}
month = {May}
}