Heat transfer under supercritical pressures and heat transfer deterioration boundaries

Abstract

Some relations for technical calculations of the normal heat transfer in a rising water flow under supercritical pressure (SCP) are analyzed and compared with recent experimental data obtained at the Institute of Physics and Engineering (Obninsk). The accuracy of recommendations concerning the calculation of heat transfer is estimated. The dependence is proposed for calculating the heat transfer deterioration boundary, which generalizes the data obtained for different coolants (water, CO2, and Refrigerant-12).