The heat transfer characteristics of kerosene in micro-channel under supercritical pressure
The heat transfer of the kerosene (aviation kerosene) under supercritical pressure was investigated through experiment. According to the experimental results, the heat transfer curve of the kerosene under supercritical pressure was plotted. When the temperature goes from low to high, the heat transfer of the kerosene under supercritical pressure goes through the following four periods: (1) the normal heat transfer, in this region, both the tube wall temperature and the kerosene temperature are lower than the critical temperature; (2) heat transfer enhancement period, in this region, the tube wall temperature arrives at the critical temperature, similar boiling heat transfer happens; (3) heat transfer deterioration, in this region, the temperature of the kerosene in boundary layer is higher than the critical temperature, the specific heat and thermal conductivity decrease slowly after their maximum; (4) the second heat transfer enhancement, after the heat transfer deterioration period, when the temperature is even higher, the specific heat and the conductivity coefficient slowly rise again, the second heat transfer enhancement comes.
supercritical pressure kerosene heat transfer characteristics enhancement deterioration
Li zhong zhou Zhu hui ren
School of Power and Energy Northwestern Poly-technical University Xian,Shanxi Province, China
国际会议
成都
英文
140-143
2010-06-12（万方平台首次上网日期，不代表论文的发表时间）