CAE Analysis And Research On Temperature Field And Flow Field Of High-pressure Feed Water Heater

With the development of modern computer technology and Computer Aided Engineering (CAE) technology, various mathematical models and numeric algorithms have been perfected and updated. CAE technology based on Computational Fluid Dynamics (CFD) is being paid more attention in science research and practical engineering. Nowadays, the research and application of numerical simulation is working up for some complex heating power equipments such as shell and tube exchanger, large-scale condenser, cooling tower etc. In this paper numerical simulation is applied to high-pressure heater to analyze its temperature field and flow field by cooperating with Shanghai Power Equipment Co.Ltd (SPEC), hoping to provide better approaches and more reliable references for the design optimization and the improvement of equipment and parts in SPEC.According to the equipment's features and company's situation, high-pressure heater's vital areas such as temperature fields at inlet of DSZ (Desuperheating Zone), drips inlet, and flow field and temperature field inside DSZ, were studied with universal finite element analysis software ANSYS. After making some simplifications and hypothesis, corresponding mathematical models including turbulence model, porous media model, and finite element models were set up and then the simulations were realized. The results are in accord with theoretical computing results and can be regard as references for engineering design.What's more, the porous media model in the thermal shields was simplified as 2-D model based on 3-D simulation. The fluid in the DSZ with different baffles was simulated with ANSYS Parameter Design Language...