TY - JOUR
T1 - Boiling stability characteristics of methanol flowing over a nonuniformly heated surface
AU - Lin, W. W.
AU - Yang, J. C.
AU - Lee, D. J.
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 1998/12/1
Y1 - 1998/12/1
N2 - The stability characteristics of methanol flow boiling over a nonuniformly heated surface has been investigated. An axial heat flux distribution corresponding to a neutral stability condition, at which nucleate and film boiling can coexist steadily, was identified under various system pressures, liquid subcooling and liquid flowrates. An increase (decrease) in the bottom heat flux under nucleate boiling mode would enhance (weaken) the relative stability of the film boiling mode. Furthermore, nucleate boiling would become more stable under increasing liquid subcooling. The dependence on system pressure is relatively weak. The 'equilibrium heat flux' is proven for the first time, to exist on an indirectly conductive heating surface, which can serve for direct comparison between stability characteristics among different boiling systems.
AB - The stability characteristics of methanol flow boiling over a nonuniformly heated surface has been investigated. An axial heat flux distribution corresponding to a neutral stability condition, at which nucleate and film boiling can coexist steadily, was identified under various system pressures, liquid subcooling and liquid flowrates. An increase (decrease) in the bottom heat flux under nucleate boiling mode would enhance (weaken) the relative stability of the film boiling mode. Furthermore, nucleate boiling would become more stable under increasing liquid subcooling. The dependence on system pressure is relatively weak. The 'equilibrium heat flux' is proven for the first time, to exist on an indirectly conductive heating surface, which can serve for direct comparison between stability characteristics among different boiling systems.
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U2 - 10.1016/S0017-9310(98)00107-0
DO - 10.1016/S0017-9310(98)00107-0
M3 - RGC 21 - Publication in refereed journal
SN - 0017-9310
VL - 41
SP - 4009
EP - 4023
JO - International Journal of Heat and Mass Transfer
JF - International Journal of Heat and Mass Transfer
IS - 23
ER -