摘要
针对冶金炉窑燃烧释热场、温度场计算机仿真过程中气体发射率的动态计算问题,采用计算机图形处理技术从霍脱尔发射率曲线图中智能提取数据,并基于分步回归策略,建立了CO2、SO2、H2O等气体的发射率数学模型。模型检验和误差分析表明,该模型回归结果误差小,满足辐射换热工程计算精度要求。
According to solve the dynamic calculation problems of gas emissivity while simulating heat distribution field in furnace, the mathematical models of CO_2, SO_2 and H_2O emissivity were presented based on the stepwise regression strategy, using the data obtained intelligently from H. C. Hottel curve by computer graph manipulation technology. The results show that the model has good regression effect and high precision, the regression model accuracy can meet the requirement of radiative heat transfer calculation.
出处
《冶金能源》
北大核心
2008年第1期23-25,61,共4页
Energy For Metallurgical Industry
基金
国家"863"计划引导项目(2002AA001040)
国家发改委项目(发改办高技〔2005〕1255)
关键词
气体发射率
霍脱尔曲线
辐射换热
温度场仿真
分步回归
gas emissivity H. C. Hottel curve radiation heat transfer heat distribution field simulation stepwise regression
