Investigation of the features of critical heat transfer during boiling of subcooled hydrocarbons at the pressures, near to the critical one

Paper contains the results of investigation into heat exchange at boiling of underheated benzene and toluene under pressure values close to the critical one in a vertical straight-line and in a horizontal coiled pipes. One revealed nonequilibrium distribution of wall temperature along the perimeter of the horizontal coiled pipe and its smooth increase at heat exchange crisis. One proposes equations to calculate critical thermal flow in the mentioned pressure range at vertical position of the straight-line pipe