Heat Transfer of Hydrocarbon Fuel in Turbulent Flow Region Under Supercritical Pressure

The convective heat transfer characteristics of hydrocarbon fuel are crucial for the regenerative cooling design of a scramjet.The flow and heat transfer of n-decane at pressure of 4.0MPa were studied experimentally using an electrically heated tube.Mass and energy conservations were applied to analyze the heat transfer of hydrocarbon fuel in the tube,and the heat transfer correlation at turbulent flow region was derived using the method of multiple linear regression.The calculated outer wall temperature was compared with experimental values,which confirmed the validity of the presented correlation.