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22. DESIGN AND FABRICATION OF A PORTABLE MANUALLY OPERATED SAWDUST BRIQUETTING MACHINE by Ebu-nkamaodo O.T. and Linus G.S. Volume 55 (February 2020 Issue)
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DESIGN AND FABRICATION OF A PORTABLE MANUALLY OPERATED SAWDUST BRIQUETTING MACHINE

Ebu-nkamaodo O.T. and Linus G.S.

Department of Mechanical Engineering, University of Benin

Abstract

In Nigeria, furniture making, construction, and cooking compete for woody biomass as their raw material. The utilization of sawdust generated during wood processing for generating thermal energy frees up wood for other useful purposes. However, briquetting is needful, since loose biomass cannot be utilized directly. Low-pressure compaction techniques are preferred for small scale consumers. The need for portable and cheap briquetting machines, therefore, cannot be over-emphasized. The project is concerned with the design, development and fabrication of a briquetting machine for use by small scale customers, possibly resident close to saw mills. A manually operated hydraulic sawdust briquetting machine was designed, fabricated and tested. The machine consists of a cylindrical mold, a piston welded to a 5-ton hydraulic car jack, which drives it, a frame, and a cover plate. The machine worked satisfactorily with an average time of 2minutes and 4 seconds for briquette production. Three samples with different binder content were produced, with calorific values of 83.53, 113.79, and 120.44 J/g, respectively. The machine can be used by small scale consumers to produce briquettes for thermal applications.

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