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Investigations on single-phase natural circulation loop dynamics. Part 3: Role of expansion tank

DSpace at IIT Bombay

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Title Investigations on single-phase natural circulation loop dynamics. Part 3: Role of expansion tank
 
Creator NAVEEN, K
IYER, KN
DOSHI, JB
VIJAYAN, PK
 
Subject STABILITY CHARACTERISTICS
FLOW
INSTABILITY
BEHAVIOR
Natural circulation
Single-phase
Instability
Expansion tank
Hysteresis
Stability
 
Description Expansion tank is an important component of all single-phase natural circulation loops. The tank serves the twin purposes of venting the air out during the loop filling and accommodation of the swells and shrinkages of the loop fluid during the transient. In the present study, experimental investigations have been carried out in a rectangular single-phase natural circulation loop to bring out the role of expansion tank in loop dynamics. The results on loop stability and transient behavior are discussed. The experimental investigations show that there is significant amount of heat exchange between the main loop fluid and the expansion tank fluid. First, the results of experimental studies are presented. The different flow regimes observed in these experimental investigations are discussed. Next, a model is presented for taking into account the heat exchange between the main loop fluid and the expansion tank fluid. Finally, the model is applied to simulate the dynamic behavior of different single-phase natural circulation loops. The investigations carried out in this study have helped in resolving the issue of hysteresis observed in these loops. (C) 2014 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2016-01-15T05:01:53Z
2016-01-15T05:01:53Z
2015
 
Type Article
 
Identifier PROGRESS IN NUCLEAR ENERGY, 78,65-79
0149-1970
http://dx.doi.org/10.1016/j.pnucene.2014.08.007
http://dspace.library.iitb.ac.in/jspui/handle/100/17823
 
Language en