Measurement of heat transfer coefficient of activated coke
FU Yuemei
LIU Jing
TANG Xishan
Abstract：In order to improve heat transfer coefficient of activated coke,the radial heat transfer on bed was simplified as effective radial thermal conductivity,the axial heat transfer was considered as two parts which were axial effective heat transfer,fluid flow and heat trans-fer. The distribution of temperature on axial and radial of bed was determined by changing turbulent flow gas velocity. Radial thermal con-ductivity and wall heat transfer coefficient were obtained by applying the orthogonal collocation method in giving the initial value. The opti-mization method was used to solve the model of partial differential equation with Matlab software. The results showed that,the effective thermal conductivity of activated coke was 1. 39 W/(m·K),the wall heat transfer coefficient rose with the raise of particle Reynolds number. The wall heat transfer coefficient which was determined through test was in agreement with the empirical formula of low heat trans-fer coefficient material.
Keywords：activated cokeeffective thermal conductivitywall heat transfer coefficientorthogonal collocationturbulent flow gas
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 56-58,63 )