Complex fluid flow and heat transfer analysis inside a calandria based reactor using CFD technique

15th Asian Congress of Fluid Mechanics

物理学;力学

Kulkarni, P.S.^1

Computational Mechanics Laboratory, Department of Aerospace Engineering, Indian Institute of Science, Bangalore

560012, India^1

关键词: Capacity enhancement;    Complex fluid flow;    Flow parameters;    Fluid flow and heat transfers;    Heat removal capacity;    Heat transfer efficiency;    Numerical experiments;    Optimized designs;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/822/1/012026/pdf
DOI  :  10.1088/1742-6596/822/1/012026

学科分类：力学，机械学

来源: IOP

【 摘 要 】

Series of numerical experiments have been carried out on a calandria based reactor for optimizing the design to increase the overall heat transfer efficiency by using Computational Fluid Dynamic (CFD) technique. Fluid flow and heat transfer inside the calandria is governed by many geometric and flow parameters like orientation of inlet, inlet mass flow rate, fuel channel configuration (in-line, staggered, etc.,), location of inlet and outlet, etc.,. It was well established that heat transfer is more wherever forced convection dominates but for geometries like calandria it is very difficult to achieve forced convection flow everywhere, intern it strongly depends on the direction of inlet jet. In the present paper the initial design was optimized with respect to inlet jet angle, the optimized design has been numerically tested for different heat load mass flow conditions. To further increase the heat removal capacity of a calandria, further numerical studies has been carried out for different inlet geometry. In all the analysis same overall geometry size and same number of tubes has been considered. The work gives good insight into the fluid flow and heat transfer inside the calandria and offer a guideline for optimizing the design and/or capacity enhancement of a present design.