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Normal and Deteriorated Heat Transfer Under Heating Turbulent Supercritical Pressure Coolants Flows in Round Tubes
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Author(s): Vladimir A. Kurganov (Joint Institute for High Temperatures, Russian Academy of Sciences, Russia), Yury A. Zeigarnik (Joint Institute for High Temperatures, Russian Academy of Sciences, Russia)and Irina V. Maslakova (Joint Institute for High Temperatures, Russian Academy of Sciences, Russia)
Copyright: 2021
Pages: 39
Source title:
Handbook of Research on Advancements in Supercritical Fluids Applications for Sustainable Energy Systems
Source Author(s)/Editor(s): Lin Chen (Institute of Engineering Thermophysics, Chinese Academy of Sciences, China & University of Chinese Academy of Sciences, China)
DOI: 10.4018/978-1-7998-5796-9.ch014
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Abstract
Heat transfer to a turbulent flow of supercritical pressure (SCP) fluids under intense heating conditions is considered. The problem of heat transfer deteriorating under high heat loads and the reasons of its origination are analyzed. The results of hydraulic measurements in a flow and its structure using “two pressure drop” method and sounding technique in the regimes of normal and deteriorated heat transfer are presented. The existed correlations on normal heat transfer are analyzed and assessed as to their accuracy. It is pointed out that all the correlations developed using “old” thermophysical properties existed before implementing IAWPS-97 must be corrected. Respective recommendations on this problem and the new correlation for normal heat transfer are presented.
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