International Journal of Manufacturing Systems2152-19132152-1921Academic Journals Inc.10.3923/ijmsaj.2012.21.42OjoloS.J.AbolarinS.M.AdegbenroO.2201222This study presented a designed and fabricated 11.19 kW laboratory scale updraft gasifier tested on sawdust and palm kernel shell as feedstock. The samples of the pulverized feedstock were analysed for their fuel characteristics. The results of the proximate analysis of the sawdust and palm kernel shell showed that the respective moisture content of 9.9 and 12% (dry basis) contains 4 and 3% fixed carbon, 82 and 55% of volatile matter and 4 and 30% of ash on dry basis. The Higher Heating Value (HHV) are 23.4 and 15.8 MJ kg^{-1} while the Low Heating Values (LHV) were 22.2 and 15.0 MJ kg^{-1}. The result of ultimate analysis validates both ash and moisture content which are found to be 4 and 30% and 9.9 and 12%, respectively. Other elemental compositions determined by the ultimate analysis are respectively carbon (66.964% and 45.19), hydrogen (5.71% and 3.85), nitrogen (0.822 and 0.558%) and oxygen (12.604 and 8.402%). The performance test carried out on both the sawdust and palm kernel shell indicates the heat energy input of 28,125 and 31,633.06 kJ, power input of 7.812 and 8.79 kW, power output of 5.47 and 6.15 kW and the respective gasifier efficiency of 93 and 67.4%. The study has identified that the sawdust and palm kernel shell are suitable for the designed and fabricated updraft gasifier. This gasifier has been made to meet various energy demands from the local readily available materials and can be developed for various applications of heating, electricity supply and can be used to generate the needed combustible gases during fuel scarcity.]]>Agbontalor, E.A.,2007Anon,2002Babu, S.P.,2005Beaumont, O. and Y. Schwob,1984Brammer, J.G. and A.V. Bridgwater,2002Bridgwater, A.V.,2002Bridgwater, A.V. and G.D. Evans,1993Eastop, T.D. and A. McConkey,1993Edrich, R., T. Bradley and M. Grabboski,1985Elliot, D.C. and L.J. Sealock,1985Ergudenler, A. and A.E. Ghaly,1992Font, R., A. Marcilla, J. Deversa and E. Verdu,1988FAO,1986FAO,1985Harris, D., D. Roberts and D. Henderson,2006Hassan, S., F.M. Nor, Z.A. Zainal and M.A. Miskam,2011Hobbs, M.L., P.T. Radulovic and L.D. Smoot,1993Inayat, A., M.M. Ahmad, M.I.A. Mutalib and S. Yusup,2010Iqbal, M., Z.A. Zainal, M.M. Mahadzir and H. Suhaimi,2010Joseph, B., P. Sankarganesh, B.T. Edwin, S.J. Raj and M.V. Jeevitha et al.,2011Koledzi, K.E., G. Baba, G. Tchangbedji, K. Agbeko, G. Matejka, G. Feuillade and J. Bowen,2011Liinanki, L., P.J. Svenningsson and G. Thessen,1981Lucas, C., D. Szewczyk, W. Blasiak and S. Mochida,2004McLendon, T., A. Lui, R. Pineault, S. Beer and S. Richardson,2004Nandi, S.P. and M. Onischak,1981Nowling,2000Plante, P., C. Roy and E. Chornet,19882 gasification of wood charcoals derived from vacuum and atmospheric pyrolysis.]]>Rajput, R.K.,2004Ramana, P.V., R.N. Singh and K.N. Patil,2005Reed, T.B. and G. Siddhartha,2001Rezaiyan, J. and N.P. Cheremisinoff,2005Richard, J., M. Cathonnet and J. Rowan,1985Sadaka, S.S., A.E. Ghaly and M.A. Sabbah,1998Schoeters, J., K. Maniatis and A. Buekens,1989Scott, D.S., J. Piscorz, M.A. Bergougnou, R. Graham and R.P. Overend,1988Singh, S.,2008Stultz, S.C. and J.B. Kitto,1992Syamsiro, M., H. Saptoadi and B.H. Tambunan,2011Voloch, M., R. Neuman, M.R. Ladisch, R.M. Peart and G.T. Tsao,1983Yinesor, G.,2008Yusof, I.M., N.A. Farid, Z.A. Zainal and M. Azman,2008Akinbami, J.F.K. and A.S. Momodu,2011Azali, A., A.B. Nasrin, Y.M. Choo, N.M. Adam and S.M. Sapuan,2005Belonio, A.T.,2005Brown, R.C.,2005Jenkins, S.,2008Senapati, P.K.,2008Raman, P., W.P. Walawender, L.T. Fan and C.C. Chang,1981Miskam, A., Z.A. Zainal and I.M. Yusof,2009Kumar, S.S., K. Pitchandi and E. Natarajan,2008