Optimum Excess Air for the Utilization of Palm Biodiesel Blends in Fire Tube Boiler


Article Preview

Biodiesel has great potential to be applied in a variety of combustion engines, such as boiler. The excess air control in the combustion process plays an important role to produce an ideal combustion performance. The changes in the physical properties of the fuel due to the use of palm biodiesel or its blends affect the amount of required air to the combustion chamber. This study was conducted in a package type fire tube boiler with a design pressure of 3 bars and heat capacity of 60,000 kCal/hour. Palm biodiesel blends were set as boiler fuel with composition of 10%, 20%, 30% and 50% in diesel oil. Fan damper scale is part of the burner system that in charge to regulate the air flow into the combustion chamber. The fan damper scale was set in the range of 4.0-4.9. For higher blends of biodiesel, the fan damper was optimum in lower scale (4.0 or less). More biodiesel in blends, less combustion air was needed to enter. Hence, the excess air of palm biodiesel combustion in fire tube boiler was in range of 57-67%.



Edited by:

Bale V. Reddy, Shishir Kumar Sahu, A. Kandasamy and Manuel de La Sen




S. A. Rachman and L. N. Komariah, "Optimum Excess Air for the Utilization of Palm Biodiesel Blends in Fire Tube Boiler", Applied Mechanics and Materials, Vol. 627, pp. 137-140, 2014

Online since:

September 2014




[1] M. Biarnes : Combustion, E-Instrument. Web (April, 2012), http: /www. e-inst. com/docs/E-Instruments-Combustion-Booklet-2009. pdf.

[2] M. Boyd : The Autoignition Properties of Biodiesel Fuels, University of Adelaide (2007).

[3] A. Demirbas ; Relationships derived from physical properties of vegetable oil and biodiesel fuels, Fuel vol 87 (2008) pp.1743-1748.

[4] A.B. Ghorbani : A comparative study of combustion performance and emission of biodiesel blends and diesel in an experimental boiler, Applied Energy vol 88 (2011), pp.4725-4732.

DOI: https://doi.org/10.1016/j.apenergy.2011.06.016

[5] S.B. Hosseini, K. Bashirnezhad, A.R. Moghiman, Y. Khazraii, N. Nikofaal : Combustion Characteristic and Pollution Emission of Gas Oil and Biodiesel, World Academic of Science, Engineering and Technology vol 48 (2010), pp.304-307.

[6] T. E. Jiru, B.G. Kaufman, K.E. Ileleji, D.R. Ess, H.G. Gibson, and D.E. Maier : Testing the performance and compatibility of degummed soybean heating oil blends for use in residential furnaces, Fuel vol 89 (2010), pp.105-113.

[7] M. Lapuerta, J.M. Herreos, L.I. Lyons, R. Garcia-Contreras, and Y. Brice : Effect of the alcohol type used in the production of waste cooking oil biodiesel on diesel performance and emissions, Fuel vol 87 (2008), pp.3161-3269.

DOI: https://doi.org/10.1016/j.fuel.2008.05.013

[8] Massachusetts Oilheat Council & National Oilheat Research Alliance : Combustion Testing of A biodiesel Fuel Oil blned in residential oil Burning Equipment, Energy Research Center Inc. (2003).

[9] J. Nagi, S.K. Ahmed, and F. Nagi : Palm Biodiesel an Alternative Green Renewable Energy for Energy Demands of the Future, ICCBT 07 (2008) 79-94.

[10] K. Sivaramakrishnan and P. Ravikumar: Determination of Cetane Number of Biodiesel and Its Influence on Physical Properties, ARPN J. Eng and App Sci. Vol. 7 (2012), pp.205-211.