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An investigation of flashing-driven natural circulation

DSpace at IIT Bombay

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Title An investigation of flashing-driven natural circulation
 
Creator SAJITH, PP
VEDULA, RP
MITRA, SK
 
Subject boiling water-reactor
stability
instability
loop
flashing
instability
natural circulation
simulation
 
Description Natural circulation driven boiling systems are extensively used for passive heat removal, such as in nuclear power plants. The flashing phenomenon and the associated flow instabilities in a natural circulation loop are reported here. An experimental facility is constructed with a heater, an adiabatic riser, a condenser and an adiabatic down comer to study the instability regions. The experimental geometry is modeled using RELAP5. At high power (Le., at 6 kW)flashing instability is observed when the inlet sub cooling is within the range of 7 degrees C to 12 degrees C. It is also found that the presence of an inlet restriction does not help to suppress the flashing induced flow oscillation. A good comparison between the experimental and numerical results is observed and this loop can be used for validation exercises of commercial codes.
 
Publisher TAYLOR & FRANCIS INC
 
Date 2011-08-30T16:34:55Z
2011-12-26T12:59:03Z
2011-12-27T05:49:56Z
2011-08-30T16:34:55Z
2011-12-26T12:59:03Z
2011-12-27T05:49:56Z
2006
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF GREEN ENERGY, 3(4), 369-379
1543-5075
http://dx.doi.org/10.1080/01971520600873301
http://dspace.library.iitb.ac.in/xmlui/handle/10054/12392
http://hdl.handle.net/10054/12392
 
Language en