Volume 19, Issue 5 (May 2019)                   Modares Mechanical Engineering 2019, 19(5): 1095-1101 | Back to browse issues page

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Hajilary N, Rezakazemi M. Optimization of Combustion Burner at Hoffman Brick Factories. Modares Mechanical Engineering 2019; 19 (5) :1095-1101
URL: http://mme.modares.ac.ir/article-15-17776-en.html
Optimization of Combustion Burner at Hoffman Brick Factories
N. Hajilary * 1, M. Rezakazemi2
1- Chemical Engineering Department, Engineering Faculty, Golestan University, Gorgan, Iran , n.hajilari@gu.ac.ir
2- Department of Chemical Engineering, Faculty of Chemical & Materials Engineering, Shahrood University of Technology, Shahrood, Iran
Abstract:   (8337 Views)

The combustion system used by the Hoffman furnaces for brick factories has a very low efficiency. In the current paper, the performance of the combustion system of Hoffman furnaces of Kolet Pottery Brick Co has improved, using computational fluid dynamics (CFD) by making changes to the Hoffman furnace torch, including the converging the torch head, inserting the spring in the pipe to create the swirl flow, shortening the nozzle length for the better mixing of the fuel and air, and more. The changes were simulated in each step with the FLUENT simulation software. Based on the theoretical results and simulation, optimized torch was made and a field test was carried out on it in a brick factory and the gases from their combustion were analyzed. As a result of these reforms, the combustion efficiency of the Hoffman furnaces has increased from 27% to 47 %, and consumption of fuel oil has decreased by a third. Also, the CO value of 16854 ppm in the old torch was reduced to 298 ppm in the optimized torch and the NO value ranged from 49 to 18 ppm as a result of optimizations.
 

Keywords: Brick Factory, Hoffman Furnace, Burner, Energy Consumption, Swirl Flow
Full-Text [PDF 567 kb]   (3344 Downloads)    
Article Type: Original Research | Subject: Internal Combustion Engine
Received: 2018/03/16 | Accepted: 2018/12/4 | Published: 2019/05/1
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