IJSER Home >> Journal >> IJSER
International Journal of Scientific and Engineering Research
ISSN Online 2229-5518
ISSN Print: 2229-5518 1    
Website: http://www.ijser.org
scirp IJSER >> Volume 3,Issue 1,January 2012
New features for performance enhancement of experimental Model Bubbling Fluidized Bed Combusto
Full Text(PDF, )  PP.217-226  
Author(s)
Raji T.O, Oyewola O.M, Salau T.A.O
KEYWORDS
Bubbling, Fluidized Bed, Biomass, combustion, design analysis, Experimental model, enhancement, Performance, Renew able energy, —
ABSTRACT
Fuel flexibility and capacity to burn broad spectrum of fuels at high combustion efficiency with minimum emissions of greenhouse gases are few of the key advantages fluidized bed combustion technology has over other existing combustion technology. This report examines the design, development and testing of an experimental model Bubbling fluidized bed combustor. Three unique features to enhance performance of this system were suggested and comprehensively discussed; inert bed's temperature regulating unit, an integrated unit that enable Fluidizing air pre-heating as well as Biomass feeding pipe's cooling and segmentations of the Combustor body into modules /partitioning of these modules into lower and upper section. The results of the test run with Palm kernel shell and Coconut shell show that the system performance is enhanced and that the temperature is well regulated as observed in the thermal distribution. It is therefore proposed that the present Bubbling Fluidized bed combustor could be beneficial to development of commercial sizes for power generation in Nigeria and Africa sub region.
References
[1] Srinivasa Rao, K.V.N. and Venkat Reddy, G. Effect of secondary air injection on the combustion efficiency of sawdust in a fluidized bed combustor. Brazilian Journal of Chemical Engineering 2008. Vol.25, No 01: 129-141.

[2] Rosyida ,P., Kang, K. H., Mohammad, N. M. J. Emissions Characteristics ofpalm Wastes in Fluidized Bed Combustion. Faculty of Mechanical Engineering, Universiti TeknologiMalaysia, 81310 UTM Skudai, Johor, Malaysia. 2006

[3] Wan,W.A., AbKarim, G., Alias, A.B., and Cliffe,K.R. Cocombustion of refuse derived fuel with coal in a fluidised bed combustor. Journal of Engineering Science andTechnology . Vol. 4,No.1, 122-131. 2009

[4] Suthum P. Fluidised Bed Combustion of Oil PalmSolid Waste. Waste Incineration Research Center (WIRC). Department of Mechanical Engineering, King Mongkuts Institute of Technology North Bangkok. 2004

[5] Wan,W.A.,AbKarim, G. R., MohdSalleh,M.A.,and Alias,A.B..Air Gasification of Agricultural Waste in a Fluidized Bed Gasifier:Hydrogen Production Performance. Energies 2009, 2, 258-268; doi:10.3390/en2020 0258

[6] Ishbir,S. Design, Development and Testing of a Circulating fluidized bed Combustor for incineration of Agriwaste. A Thesis submitted in partial fulfillment of the requirements for the award of degree of Master of Engineering in CAD/CAM & Robotics to Thapar Institute of Engineering and Technology, India. 2006

[7] Information on Parameters of air at different temperature and pressure. Retrieved 17-august 2010,from http://www.engineeringtoolbox.com/air-absolute-kinematicviscosity-d_601.html.

[8] Calculations for screw conveyors. Retrieved April 15,2010, from www.vavnl.com

[9] Hemad Z., Mohammad, H.K., Mohammad R.A., Mahdi Masoomi. Screw Conveyors Power and Throughput Analysis during Horizontal Handling of Paddy Grains. Journal of Agricultural Science2010 . Vol. 2, No. 2.

[10] Hoekstra, A.J., Derksen, J.J., Van Den Akker, H.E.A. An experimental and numerical study of turbulent swirling flow in gas cyclones. Chemical Engineering Science 54, 2055-2065. 1999

[11] Santana,J.D.A.M.,Arnosti,S.Jr.,andCoury, J.R. Performance of cylindrical conical cyclones with different geometrical configurations. Brazilian Journal of Chemical Engineering 2001 Eng. Vol.18 no.3.

[12] Learning about Gas Cyclone. Retrieved august 15, 2010, from http://aerosol .ees.ufl.edu/cyclone/ cyclone.html

[13] MaterialBulkdensity: Retrieved on August 20, 2010 from www.asiinstr.com/technical/Material_Bulk_Density_Chart_

[14] Abubakar, S.S. Strategic Developments In Renewable Energy In Nigeria. International association of energy economics. 2009

[15] UNEP-DTIE Energy Branch: Technical study report on Biomass fired Fluidized bed combustion Boiler Technology for cogeneration. Retrieved on 17-September, 2010 from http://www.unep.fr/ energy.

[16] Najmi, W.M.W.A., Rosli, A.N. and Izat, M.S. S. Combustion Characteristics ofPalm Kernel Shells Using an Inclined

[17] IPPA : African Case Study: Palm Oil and Economic Development in Nigeria and Ghana; Recommendations for the World Bank’s 2010 Palm Oil Strategy.Retieved 15July 2010 fromwww.ippanigeria.org

[18] Simeon N. Oka: Fluidized bed combustion. MercelDekker Inc.New York. Page 435, 2004

Untitled Page