反应器内连续移热SO_2转化系统(Ⅰ)深埋在颗粒填料中热管的传热性能

REACTOR INTERNAL CONTINUOUS HEAT TRANSFER PROCESS FOR SO_2 CONVERSION SYSTEM (Ⅰ) HEAT TRANSFER PERFORMANCE OF HEAT PIPE EMBEDDED IN PACKED DUCT

建立了气体横掠深埋在颗粒填料中的热管时的传热模型 ,并用数值方法进行求解 .此外 ,通过实验研究得到了传热的准数关联式 ,并对理论与实验结果进行了对比 ,为进一步进行SO2

Based on a reasonable hypothesis and according to the continuity equation, momentum equation, energy equation, boundary layer theory and relevant boundary condition, the mathematial model of heat transfer and fluid mechanics with fluid flowing through the heat pipe immersed in the packed bed is developed in this paper. After analogy transition and numerical calculation, the model is simplified and solved. In addition, convective heat transfer is measured experimentally with the fluid flowing through heat pipe immersed in the packed bed. After analyzing the experimental data, a heat transfer correlation is obtained. The experimental result is in agreement with the theoretical result while Re d<500. The reason why there exists a great difference between the experimental result and theoretical result while Re d>500 is discussed.