段法,即 Hottel-Cohen 法是研究炉内高温热交换场的一种数学模型方法。它又可分为一维模型和多维模型。前者计算量远小于后者,但它已能预示一维温度场和热流场,如连续加热炉温度和热流沿炉长方向的分布。这足可满足一般设计和操作条件研究的要求。此外,它可作为控制数模的基础 Section method, that is, Hottel-Cohen method is a mathematical model of high temperature heat exchange field in furnace. It can be divided into one-dimensional model and multi-dimensional model. The former calculation is far less than the latter, but it can predict one-dimensional temperature field and heat flow field, such as the continuous furnace temperature and heat flow along the furnace length distribution. This is sufficient to meet the general design and operating conditions of the study requirements. In addition, it serves as the basis for controlling the digital model