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Critical heat flux during transient boiling of water on a vertically oriented heater
Levin A. A.
1,2, Khan P. V.
1,2, Safarov A. S.
2, Chupin I. I.1,2,3, Samarkina E. V.
3
1Novosibirsk State University, Novosibirsk, Russia
2Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
3Irkutsk National Research Technical University, Irkutsk, Russia
2Melentiev Energy Systems Institute of Siberian Branch of the Russian Academy of Sciences, Irkutsk, Russia
3Irkutsk National Research Technical University, Irkutsk, Russia
Email: lirt@mail.ru, polina.khan@gmail.com, alexssss@list.ru, mur751539@gmail.com, ekatsamar@yandex.ru
The results of an experimental determination of the critical heat flux during transient boiling of water on a steel surface due to a rapid heat release are presented. The experimental conditions were as follows: average upward water flow velocity of 0.52 m/s, initial pressure of 0.29 MPa, and liquid subcooling relative to the saturation temperature of 23, 53, and 103 K. It is shown that the influence of the surface heating rate on reaching the temperature corresponding to the onset of boiling crisis is nonlinear. Keywords: subcooled boiling, transient boiling, critical heat flux.
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