ISSN Online: 2377-424X
International Heat Transfer Conference 5
INVESTIGATION IN HEAT TRANSFER , VELOCITY AND TEMPERATURE PROFILES WITH CARBON DIOXIDE FLOW IN A TUBE OVER THE NEARLY CRITICAL REGION OF PARAMETERS
Abstract
The velocity and temperature distributions were studied with the forced convection of the flux under isothermal and non-isothermal conditions over the region of thermodynamic
parameters close to a critical state and far from it. Experiments with carbon dioxide at pressure 78,5 bars showed that great distortion of the velocity profile took
place at the nearly critical region. It is shown that calculation of heat transfer coefficients at the investigated region using the method proposed by B.S.Petukhov and V.N. Popov yields good agreement with the experimental results.