燃烧室一维微元法设计和三维校核研究  

1-D Infinitesimal Dividing Method Design and 3-D Optimization Research of Combustor

作　　者：陈曦[1] 郑洪涛[1] 何悟[1] 潘刚[1] 张智博[1] 

机构地区：[1]哈尔滨工程大学动力与能源工程学院,哈尔滨150001

出　　处：《燃烧科学与技术》2014年第5期433-439,共7页Journal of Combustion Science and Technology

摘　　要：按照一维设计加三维优化的设计思路,对某型燃气轮机燃烧室进行设计优化.首先通过化学反应器网络法对燃烧流场进行一维分区,确定能最大化降低NOx排放的最佳配气规律,进而使用微元法求得火焰筒各燃烧段特征长度.之后通过三维全尺寸进行校核,确定主燃孔、掺混孔和旋流器等部件的详细尺寸,确保得到最优化燃烧流场.最后根据三维流场重新细化网络图分区,使之与真实流场相一致,从而得到准确的燃烧室出口NOx、CO等污染物的排放量.This article optimizes a gas turbine combustor using the method of one-dimensional design and threedimensional optimization. Firstly,the combustion flow field was divided into several zones based on chemical reactor network method. Secondly,the optimal air distribution scheme of the lowest NOx emission was found. Thirdly,the characteristic length of each part of the flame tube was calculated using infinitesimal dividing method. Fourthly,the three-dimensional combustor was simulated with numerical method to define the detailed dimension of each intake part and to make sure the combustion flow field has been organized well. Finally,the network of combustion flow field was recalculated to get the final NOx and CO emissions.

关 键 词：化学反应器网络法 微元法 一维设计 燃烧室 

分 类 号：TK16[动力工程及工程热物理—热能工程]