Numerical Analyses of the Effects of Fuel Load Variation on Combustion Performance of a Pellet Fuelled Boiler

Yıl 2018, , 1 - 8, 25.03.2018

Bilal Sungur , Bahattin Topaloglu

https://doi.org/10.30516/bilgesci.364802

Cited By: 1

Öz

Domestic
and industrial energy requirements since the beginning of industrial revolution
have been largely met by fossil fuels. This leads to a continuous increase in
the Earth's atmosphere of carbon dioxide and other harmful components. Also
fossil energy resources decreasing day by day and scientists have turned to new
research. In this context alternative energy sources have an important role to
reduce dependence on fossil fuels. One of the alternative energy sources is
biomass and pellet fuel is one of them. In this study, combustion
characteristics of pellet fuel in a model smoke tube boiler at different
loading conditions were investigated numerically. As a Computational Fluid
Dynamic (CFD) program FLUENT package program was used. Calculations were
performed at two dimensional conditions. According to various loading
conditions, temperature and stream function contours, velocity vectors, exhaust
gas temperatures and efficiencies were investigated and results were discussed.

Anahtar Kelimeler

Biofuels; Numerical modeling; Pellet; Pellet boilers

Kaynakça

• Ahn, J., Kim, J.J., (2014). Combustion and heat transfer characteristics inside the combustion chamber of a wood pellet boiler. J Mech Sci Technol 28(2), 789-795.
• Begum, S., Rasul, M., Akbar, D., Cork, D., (2014). An Experimental and Numerical Investigation of Fluidized Bed Gasification of Solid Waste. Energies 7(1), 43.
• Chaney, J., Liu, H., Li, J., (2012). An overview of CFD modelling of small-scale fixed-bed biomass pellet boilers with preliminary results from a simplified approach. Energ Convers Manage 63, 149-156.
• Collazo, J., Porteiro, J., Míguez, J.L., Granada, E., Gómez, M.A., (2012). Numerical simulation of a small-scale biomass boiler. Energ Convers Manage 64, 87-96.
• Dong, W., Blasiak, W., (2001). CFD modeling of ecotube system in coal and waste grate combustion. Energ Convers Manage 42(15–17), 1887-1896.
• Fluent, 2006. Fluent User’s Guide.
• Gómez, M.A., Comesaña, R., Feijoo, M.A.Á., Eguía, P., (2012). Simulation of the Effect of Water Temperature on Domestic Biomass Boiler Performance. Energies 5(4), 1044.
• Klason, T., Bai, X.S., (2007). Computational study of the combustion process and NO formation in a small-scale wood pellet furnace. Fuel 86(10–11), 1465-1474.
• Lee, Y.-W., Ryu, C., Lee, W.-J., Park, Y.-K., (2011). Assessment of wood pellet combustion in a domestic stove. Journal of Material Cycles and Waste Management 13(3), 165-172.
• Pelletsatlas, (2009). English Handbook for Wood Pellet Combustion. European Biomass Industry Association.
• Porteiro, J., Collazo, J., Patiño, D., Granada, E., Moran Gonzalez, J.C., Míguez, J.L., (2009). Numerical Modeling of a Biomass Pellet Domestic Boiler. Energ Fuel 23(2), 1067-1075.
• Sui, J., Xu, X., Zhang, B., Huang, C., Lv, J., (2013). A Mathematical Model of Biomass Briquette Fuel Combustion. Energy and Power Engineering 5, 1-5.
• Sungur, B., Topaloglu, B., Ozcan, H., (2016). Effects of nanoparticle additives to diesel on the combustion performance and emissions of a flame tube boiler. Energy 113, 44-51.
• Zhou, H., Jensen, A.D., Glarborg, P., Jensen, P.A., Kavaliauskas, A., (2005). Numerical modeling of straw combustion in a fixed bed. Fuel 84(4), 389-403.
• Sungur, B., Ozdogan, M., Topaloglu, B., Namli, L. (2017). Technical and Economical Evaluation of Micro-Cogeneration Systems in the Context of Global Energy Consumption. Engineer and Machinery 58(686), 1-20.