基于概率分析的污垢模型初始污垢热阻的确定  

Calculating Initial Fouling of Fouling Model Based on Probabilistic Approach

作　　者：郭淑青[1] 徐志明[1] 孙灵芳[1] 杨善让[1] 

机构地区：[1]东北电力学院节能及测控技术研究中心,吉林吉林132012

出　　处：《东北电力学院学报》2003年第1期30-33,42,共5页Journal of Northeast China Institute of Electric Power Engineering

摘　　要：基于污垢形成的随机性 ,在不同风险水平的条件下 ,利用概率方法和在污垢形成过程中 ,污垢热阻达到临界可接受水平的时间遵循分布规律 ,及污垢模型本身的性质来确定线性、幂律、降率和渐近四种污垢模型的初始污垢热阻。Based on a stochastic characteristics of fouling process and especial nature of the models,initial fouling resistance of linear?power law?falling rate?asymptotic fouling model is determined.The time to reach a critical level of fouling that is normal distribution.And some experiments are conducted,the result of the experiments agrees with the result of the predictive model.

关 键 词：概率分析 污垢模型 初始污垢热阻 套管式换热器 

分 类 号：TK172[动力工程及工程热物理—热能工程]