A Method for Optimum Heating and Cooling Boiler Components of a Complex Shape

被引：0

作者：

Piotr Duda ^{[1
]}

Dariusz Rzasa ^{[2
]}

机构：

[1] Institute of Thermal Power Engineering,Faculty of Mechanical Engineering,Cracow University of Technology Al.Jana Pawla Ⅱ37,31-864 Cracow,Poland

来源：

JournalofThermalScience | 2015年 / 24卷 / 04期

关键词：

heat transfer; thermal stresses; heating optimization; steam boilers;

D O I：

暂无

中图分类号：

TK223 [锅炉构造];

学科分类号：

080703 ;

摘要：

A numerical method for determining a transient fluid temperature is presented.The method is formulated to minimize the total time of heating and cooling operation based on the assumption that maximum tensile and compressive total stresses in a solid can not exceed the allowable value during the entire process.The method can be used for any construction element of a simple or complicated geometry.In this method,material properties of solids can be assumed as constant or temperature dependent.The method will be implemented for the heating operation of an outlet header.This construction element is mounted in supercritical power plants.The outlet header is installed in the 460 MW power unit and it is designed for the working pressure of p;=26.5 MPa and the steam working temperature of T;=554℃.The results obtained from the proposed method will be compared with the calculations according to TRD 301-German boiler code.

引用

页码：364 / 369

页数：6

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