Development of a Method for Mechanical Strength Analysis of Pelletizing Machine

Year 2014, Volume: 10 Issue: 2, 113 - 120, 01.04.2014

Sina Haghighat Shıshvan R. Cengiz Akdenız

Abstract

As the sources of fossil fuels are restricted and usage of them is resulted to GHG

emission, it is necessary to use renewable energy sources as strong alternative for fossil fuel. Solid

biomass is one of these renewable energy sources in order to produce heat and electric. In order

to use solid biomass energy much more effectively it must be pelletized. Pelletizing is a mass and

energy densification for materials with low bulk density such as sawdust, straw and other

herbaceous energy crops. Pelletizing is a method of increasing the bulk density of biomass by

mechanical pressure. The process assists to reduce transportation costs, provides better handling

and feeding of the biomass and efficient storage with less dust formation. In the industrial scale,

pelletizing of biomass is done by means of cylindrical pelletizing machines. Generally, these

machines are manufactured by small scale companies. Samll scale pelletizing machine

manufactures usully have not suffiicant knowlage and staff to run comprehensive mechanical

strength analyses during machine design process. The objective of this study is to proper a simple

program for mechanical strength analysis for main parts of cylindrical pelletizing machines.

Keywords

Biomass, pelletizing

References

• Bapat D. W., S. V. Kulkarni, V. P. Bhandarkar, 1997. Design and Operating Experience on Fluidized Bed Boiler Burning Biomass Fuels With High Alkali Ash.
• Proceedings of the 14th International Conference on Fluidized Bed Combustion, ASME 199: 165–174, New York: Vancouver.
• Beer F. P., E. R. Johnston, J. T. Dewolf, 2006. Mechanics of MAterial.Mc Graw Hill.
• Hall D., O. F. Rosillo-Calle, P. de Groot, 1992. Biomass Energy: Lessons From Case Studies in Developing Countries. Energy Policy, 20: 62–73.
• Mitchell P., J. Kiel, B. Livingston, and G. Dupont-Roc, 2007.
• Torrefied Biomass: A Foresighting Study into the Business Case for Pellets from Torrefied Biomass as a New Solid Fuel. All Energy.
• Purohit P., A. K. Tripathi, T. C. Kandpal, 2006. Energetics of Coal Substitution by Briquettes of Agricultural Residues. Energy, 31: 1321–1331.
• Sokhansanj S., J. Fenton, J. 2006. Cost Benefit of Biomass Supply and Pre-processing Enterprises in Canada. Biocap, Canada.
• Werther J., M. Saenger, E. U. Hartge, T. Ogada, and Z. Siagi, 2000. Combustion of Agricultural Residues. Progress in Engineering and Combustion Science, 26: 1–27.
• Zeng X. Y., Y. T. Ma., L. R. Ma, 2007. Utilization of Straw in Biomass Energy in China. Renewable and Sustainable Energy Revisions, 11: 976–987.