Heat Transfer Characteristics of Calcined Petroleum Coke in Waste Heat Recovery Process

Bin Zheng,Lichen Zou,Ruiyang Li,Yongqi Liu

doi:10.1155/2016/2649383

Abstract

This paper reports the results of heat transfer characteristics of calcined petroleum coke in waste heat recovery process. The model of heat exchanger was set up. The model has been used to investigate the effects of porosity (0.58 to 0.79), equivalent heat conductivity coefficient (0.9 to 1.1), and equivalent specific heat (0.9 to 1.1). The calculated values of calcined petroleum coke temperature showed good agreement with the corresponding available experimental data. The temperature distribution of calcined petroleum coke, the calcined petroleum coke temperature at heat exchanger outlet, the average heat transfer coefficient, and the heat recovery efficiency were studied. It can also be used in deriving much needed data for heat exchanger designs when employed in industry.

Highlights

With the rapid development of economy in China, energy consumption has been increasing on a vast scale in recent years
This paper reports the results of heat transfer characteristics of calcined petroleum coke in waste heat recovery process
The researches on waste heat utilization of high temperature gas and liquid are relatively wide, and technology of waste heat recovery is relatively mature

Summary

Introduction

With the rapid development of economy in China, energy consumption has been increasing on a vast scale in recent years. In China’s industrial production, waste heat resource is rich and various, such as waste heat from high temperature gas, coke slag, and other solid particles [2]. The researches on waste heat utilization of high temperature gas and liquid are relatively wide, and technology of waste heat recovery is relatively mature. The researches and technology of waste heat utilization of high temperature solid are not inadequate. The flow and heat transfer process were simulated in fluidized bed with CFD software. Herz et al [9] researched the heat transfer coefficient between moving material layer and the wall of bed through experiment. Heat transfer characteristics of calcined petroleum coke in waste heat recovery process were studied

Physical and Mathematical Description of the Problem

Experimental System

Results and Discussions

Conclusions