HEAT TRANSFER AND FLUID FLOW CHARACTERISTICS THROUGH U-TUBE HEAT EXCHANGER WITH CFD ANALYSIS
Keywords:
Heat exchanger, Twisted tape insert, Nano MaterialAbstract
The biggest difference about u tube heat exchanger compared with other types of heat exchanger is the tube buddle structure, the longer the tube diameter is , the longer the minimum bending radius is. And the u tube heat exchanger bending radius should not less than two times the outer diameter of the heat exchanger tube. U tube heat exchanger usually designed according to the ASME Code, Section VIII, and division 1. This high load U tube heat exchanger can prevent the stress damage caused by container inflation during the process of heating or cooling. All past studies on this topic was experimental based. The present study is based on CFD (Computational Fluid Dynamics) technique used to find out better design for u-tube heat exchanger. In this study nano fluid with 0.03% of al2O3 particles is used as cold fluid. And 3 different designs of u-tube heat exchanger is designed and analyzed with help of CFD analysis
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