Experimental, CFD & Parametric Analysis of Super Heater in Bagasse Fired Water Tube Boiler
Journal: International Journal of Analytical, Experimental and Finite Element Analysis (Vol.3, No. 2)Publication Date: 2016-30-10
Authors : Rajabhau S Thombare Nanasaheb B. Pawar Nitin Y Patil;
Page : 31-35
Keywords : Bagasse fired water tube boiler; Super heater; Thermal Measurements;
Abstract
A CFD simulation was carried out for the super heater placed in the combustion chamber of Bagasse fired water tube Boiler. It has been employed to understand the thermal flow in the boiler to resolve the operational problem and search for optimal solution. The numerical analysis is carried out to enhance heat transfer characteristics and minimize thermal losses. Velocity, Pressure, Temperature, of steam as well as the temperature of tube wall was computed. The heat transfer coefficient was determined based on the measured steam temperature at the inlet & outlet of the super heater. The heat transfer coefficient computed using CFD analysis and compared with experimental results. A deviation of 1.93% in heat transfer coefficient is observed at 0.4320 kg/s, of steam mass flow rate, 573 inlet temperature, with 873 constant wall temperature. If total number of super heater pipes was decreased by 45 to 40 then Nusselt number increases by 10.02% indicating the increase in heat transfer. The results are useful for the maintenance engineer to make suitable prediction of the super heater tube life and make suitable action for the high temperature zone The results are useful for the maintenance engineer to make suitable prediction of the super heater tube life and make suitable action for the high temperature zone
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