Experimental study on the heat transfer of gas with coagulative particles flowing through a packed granular bed filter

被引：10

作者：

Chen, Junlin

Li, Xunfeng ^{[1
]}

Huai, Xiulan ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China

来源：

APPLIED THERMAL ENGINEERING | 2018年 / 141卷

基金：

国家重点研发计划; 中国国家自然科学基金;

关键词：

Heat transfer; Coagulative particles; Two-phase flow; Packed granular bed; SOLID SUSPENSION FLOW; SIMULATION; CFD;

D O I：

10.1016/j.applthermaleng.2018.06.050

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

An experimental study was carried out on heat transfer of gas with coagulative particles flowing through a packed granular bed. A logarithmic mean temperature difference (LMTD) method was used to obtain the overall heat transfer coefficient. An empirical formula was used to compare with the experimental results. The results show that the heat quantity released by the concretion of coagulative particles has an improved influence on the heat transfer when the inlet gas temperature of packed bed is above the melting point of the coagulative particles and outlet gas temperature is below the melting point. However, the heat quantity absorbed by the melting of coagulative particles can weaken the heat transfer when both the inlet and outlet gas temperature of the packed bed are above the melting point of coagulative particles. Two modified correlations are proposed to give the Nusselt number.

引用

页码：906 / 912

页数：7

共 18 条

[1] CONVECTIVE HEAT-TRANSFER IN GAS-SOLID SUSPENSION FLOW THROUGH PACKED-BEDS [J].