Researches on heat transfer correlations of hydrocarbon fuel under supercritical condition

摘要

The heat transfer correlations of n-decane were studied under supercritical condition. The fuel temperature varied from 297K to 918K at pressure of 4.0MPa. Blank tube heating was carried out to calibrate the heat loss. The experimental Nusselt numbers along the tube were compared with Sieder-Tate and Dittus-Boelter correlations. The experimental result of Nusselt number expression in turbulent flow region for supercritical n-decane was derived. The Nusselt number expression of transition region was presented.