石油焦渣油浆在管内不等温流动阻力

FLOW RESISTANCE FOR PETROLEUM COKE-RESIDUAL OIL SLURRY IN PIPE

对不同浓度的油焦浆在管内的不等温流动阻力进行了实验研究.采用SIMPLER算法对油焦浆在管内流动及传热的数学模型进行求解,在此基础上,用分段法对管内不等温流动阻力进行计算.计算与实验结果对照表明,用这种计算方法是可行的.此外,讨论了管内流速、管径大小和浓度对平均阻力系数的影响.

An experimental study on non-isothermal flow resistance for Petroleum Coke-Residual Oil Slurry (POS) in tubes was made. A mathematical model to describe flow and heat transfer for POS in heated pipe was solved numerically by SIMPLER. The divided length was used to calculate the pressure drop for non - isothermal flow in tube . The comparisons between the calculating and experimental results showed that the method was feasible.In addition, the influences of the parameters such as diameter, velocity and concentration of petroleum coke on the average coefficient of flow resistance were discussed.