Optimal design of heat exchanger header for coal gasification in supercritical water through CFD simulations

作     者：Lei Huang Lin Qi Hongna Wang Jinli Zhang Xiaoqiang Jia 

作者机构：Department of Biochemical Engineering School of Chemical Engineering and Technology Tianjin University Key Laboratory of Systems Bioengineering (Ministry of Education) Tianjin University Syn Bio Research Platform Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) School of Chemical Engineering and TechnologyTianjin University 

基　　金：Supported by the National Basic Research Program of China(2014CB745100) the National Natural Science Foundation of China(21576197) Tianjin Research Program of Application Foundation and Advanced Technology(14JCQNJC06700) Tianjin Penglai 19-3 Oil Spill Accident Compensation Project(19-3 BC2014-03) 

出 版 物：《Chinese Journal of Chemical Engineering》 (中国化学工程学报（英文版）)

年 卷 期：2017年第25卷第8期

页      码：1101-1108页

摘      要：Heat exchangers play an important role in supercritical water coal gasification systems for heating feed and cooling ***,serious deposition and plugging problems always exist in heat *** modeling was used to simulate the transport characteristics of solid particles in supercritical water through the shell and tube of heat exchangers to alleviate the *** this paper,we discuss seven types of exchangers(A,B,C,D,E,F and G),which vary in inlet nozzle configuration,header height,inlet pipe diameter and tube pass *** the modeling,the possibility of deposition in the header was evaluated by accumulated mass of particles;we used the velocity contour of supercritical water(SCW)to evaluate the uniformity of the velocity distribution among the tube *** results indicated that the optimum heat exchanger had structure F,which had a rectangular configuration of tube pass distractions,a bottom inlet,a 200-mm header height and a 10-mm inlet pipe diameter.

主 题 词：CFD模拟 超临界水 换热器 优化设计 velocity 煤气化 contour 封头 

学科分类：0710[理学-生物科学类] 0830[工学-生物工程类] 081702[081702] 0817[工学-轻工类] 08[工学] 0703[理学-化学类] 

核心收录：

D　O　I：10.1016/j.cjche.2017.03.017

馆 藏 号：203261290...