NUMERICAL ANALYSIS OF AN INTEGRATED EXHAUST DUCT SYSTEM
Author’s Name : Ra Aravind | S Kumaravel | M Kavin | P Raja
Volume 03 Issue 03 Year 2016 ISSN No: 2349-3860 Page no: 12-13
In general, curved 90° elbow bends of air-conditioning, ventilation duct systems and the mill-duct conveying systems shows less energy losses and higher production cost compared to right-angled sharp 90° elbow bends. Formation of a separation zone in sharp elbow bends causes energy loss, which appears just after the corner, questionable and difficult to make numerical prediction of the flow. By using the computational fluid dynamic software’s Gambit & Fluent, geometry of the duct and flow pattern inside the duct can be modeled and visualized. Due to high pressure generation in every inlet port of the duct at full load condition, the flow should be highly streamlined but it is not created because of the poor geometry of the duct.
Integrated duct; Flue gas; CFD; Flow pattern; Energy loss
- Avvari R and Jayanti S, “Heuristic shape optimization of gas ducting in process and power plants”, Chemical Engineering Research and Design, vol. 91, pp. 999-1008, 2013.
- Aydin C and Ozerdem B, “Air leakage measurement and analysis in duct systems”, Energy and Buildings, vol. 38, pp. 207-213, 2006.
- Bhadange P J and Thakre S B, “CFD analysis of fluid flow through pipe fitting”, International Journal of Pure and Applied Research in Engineering and Technology, vol. 1, pp. 224-233, 2013.
- Chalet D and Chesse P, “Fluid dynamic modelling of junctions in internal combustion engine inlet and exhaust systems”, Journal of Thermal Science, vol. 19, pp. 410-418, 2010.
- Cho J, Kim K, Kim J and Jeong E, “Controlling the secondary flows near end wall boundary layer fences in a 90° turning duct using approximate optimization method”, Journal of Mechanical Science and Technology, vol. 25, pp. 2025-2034.