Heat exchange in the case of freon r22 condensation inside of horizontal-oriented tubes
DOI:
https://doi.org/10.18372/2306-1472.42.1825Keywords:
condensation of flowing water, the head emission, the refrigerator divide, the turbulent vapor coreAbstract
In the article the questions of processes of heat exchange are examined during condensation of pair into a pipe. Theoretical and experimental researches, that the pair conducted for condensation into a horizontal smooth pipe at turbulent steam kernel and tape allowed first to get summarizing dependence for the local coefficients of heat emission in relation to the terms of work, characteristic for refrigeration units. Together with a koregovanoy formula for the criteria of determination of limit of existence along the pipe of the proper modes of flow of phases these dependences are basis for the construction of method of calculation of condensers of refrigeration units. Essence of method consists in experimental determination of the field of temperatures in the body of thick working area with the subsequent calculation of distributing of temperature on the surface of heat exchange, gradients of temperature, on verge of wall-energy source, and to distributing of coefficients of heat emission on the surface of heat exchange.
References
Консетов В.В. Теплообмен при конденсации пара внутри горизонтальных труб / В.В. Консетов // ИФЖ. – 1960. − Т. III, № 6. – С. 9−16.
Бойко Л.Д. Теплоотдача при конденсации пара в трубе / Л.Д. Бойко, Г.Н. Кружилин // Изв. АН СССР. Энергетика и транспорт. – 1966. − № 5. – С. 113−128.
Бойко Л.Д. Исследование теплоотдачи при конденсации пара внутри трубы / Л.Д. Бойко // Теплообмен в элементах энергетических установок. − Л.: Наука, − 1966. − С. 197−212.
Риферт В.Г. Режимы течения фаз и теплообмен при конденсации пара внутри горизонтальных труб / В.Г. Риферт, А.И. Сардак, А.Н. Тобилевич // Изв. АН СССР. Энергетика и транспорт. – 1985. − № 4. – С. 101−109.
