PREMATURE TRANSITION TO STABLE FILM BOILING INITIATED BY POWER TRANSIENTS IN LIQUID-NITROGEN

被引：20

作者：

SINHA, DN ^{[1
]}

BRODIE, LC ^{[1
]}

SEMURA, JS ^{[1
]}

YOUNG, FM ^{[1
]}

机构：

[1] PORTLAND STATE UNIV,DEPT APPL SCI & ENGN,PORTLAND,OR 97207

来源：

CRYOGENICS | 1979年 / 19卷 / 04期

关键词：

D O I：

10.1016/0011-2275(79)90023-7

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

We have investigated transient pool boiling in liquid nitrogen for a process in which the boiling is initiated by a step-function application of power to a thin wire immersed in the liquid. For such a process we find that a transition to stable film boiling can be observed for power values as low as about 40% of the steady-state peak heat flux. Such a 'premature transition' to stable film boiling can occur, even though the maximum observed values attained by the transient heat flux may lie substantially below the steady-state peak heat flux. Heating wires of platinum, copper, and constantan were employed in this investigation. Steady-state measurements are presented for comparison with the transient results, and a demonstration of the inhibition of the premature transition is described using a form of forced convection around the test wire. © 1979.

引用

页码：225 / 230

页数：6

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