Calculation of 'experimental' coefficient of heat transfer in terms of step-by-step periodical time law of heat exchange intensity variation

被引：0
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作者：
Zudin, Yu.B. [1 ]
机构：
[1] Moskovskij Energeticheskij Inst, Moscow, Russia
来源：
Teplofizika Vysokikh Temperatur | 1991年 / 29卷 / 05期
关键词：
Flow of Fluids - Tubes - Heat Exchangers - Cooling - Mathematical Models;
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学科分类号：
摘要：
Developed earlier technique to calculate averaged heat transfer in heat exchange processes with periodical intensity is unified for case of step-by-step time law of heat exchange intensity variation. Approximated analytical solution is obtained, which corresponds to asymmetric stage law of pulsations of heat transfer coefficient. Such pulsation type of heat exchange intensity is characteristic for missile condition of two-phase flow passage, for bubble and film boiling of liquids. Peculiar case of heat exchange where periodical switching-off of heating of cooled surface occurs, is analyzed.
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页码：935 / 940
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