Prediction of Tube Temperature Distribution in Water Tube Boiler of a Coal Fired Power Station
This paper presents the application of finite element method (FEM) to predict the tube temperature distribution in a water tube boiler of coal fired power station. Two-dimensional (2-D) finite elemet models are developed where the axi-symmetric triangular elements for the cross section area along the water tube are considered in computer software namely MSC Patran-Nastran. The prediction of setting constant surface heat fluxes and varying parameters such as mass flow rate of steam, material properties of the tube, steam inlet tempreature and scale thickness. The results showed that the tempreature distribution at the tube wall decrease due to increasing of the mass flow rate of steam, decreasing thermal conductivity of tube materials, steam inlet temperature and increasing scale thickness.