Abstract
Instability of a boiling natural circulation loop with a chimney at low pressure and low heater power was investigated by linear stability analysis and experiment. A homogeneous and thermodynamic equilibrium model for two-phase flow was used. The effect of flashing induced by pressure drop in the heated channels and the chimmey was considered. The effects of coupling between two boiling channels were investigated. It was found that in-phase-mode instability was apt to occur when channel inlet subcooling was large and boiling began in the chimney. In-phase-mode instability easily occurred when channel length was shortened and chimney length was increased. Out-of-phase-mode instability was apt to occur when chimney length was decreased and boiling began in the channel.
| Original language | English |
|---|---|
| Pages (from-to) | 563-576 |
| Number of pages | 14 |
| Journal | Heat Transfer - Japanese Research |
| Volume | 24 |
| Issue number | 7 |
| Publication status | Published - 1995 Dec 1 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Fluid Flow and Transfer Processes
Cite this
Thermohydraulic instability of boiling natural circulation loop with a chimney. (Part I. Linear stability analysis using homogeneous two-phase flow model and experiment on thermohydraulic instability induced by flashing). / Inada, F.; Furuya, Masahiro; Yasuo, A.
In: Heat Transfer - Japanese Research, Vol. 24, No. 7, 01.12.1995, p. 563-576.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Thermohydraulic instability of boiling natural circulation loop with a chimney. (Part I. Linear stability analysis using homogeneous two-phase flow model and experiment on thermohydraulic instability induced by flashing)
AU - Inada, F.
AU - Furuya, Masahiro
AU - Yasuo, A.
PY - 1995/12/1
Y1 - 1995/12/1
N2 - Instability of a boiling natural circulation loop with a chimney at low pressure and low heater power was investigated by linear stability analysis and experiment. A homogeneous and thermodynamic equilibrium model for two-phase flow was used. The effect of flashing induced by pressure drop in the heated channels and the chimmey was considered. The effects of coupling between two boiling channels were investigated. It was found that in-phase-mode instability was apt to occur when channel inlet subcooling was large and boiling began in the chimney. In-phase-mode instability easily occurred when channel length was shortened and chimney length was increased. Out-of-phase-mode instability was apt to occur when chimney length was decreased and boiling began in the channel.
AB - Instability of a boiling natural circulation loop with a chimney at low pressure and low heater power was investigated by linear stability analysis and experiment. A homogeneous and thermodynamic equilibrium model for two-phase flow was used. The effect of flashing induced by pressure drop in the heated channels and the chimmey was considered. The effects of coupling between two boiling channels were investigated. It was found that in-phase-mode instability was apt to occur when channel inlet subcooling was large and boiling began in the chimney. In-phase-mode instability easily occurred when channel length was shortened and chimney length was increased. Out-of-phase-mode instability was apt to occur when chimney length was decreased and boiling began in the channel.
UR - http://www.scopus.com/inward/record.url?scp=0029431959&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0029431959&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0029431959
VL - 24
SP - 563
EP - 576
JO - Heat Transfer - Asian Research
JF - Heat Transfer - Asian Research
SN - 1099-2871
IS - 7
ER -