Fabrication and Performance Evaluation of Improved Corn Cob Residual Carbonizer to Produce Bio-Charr for Energy

Gutu Birhanu Oliy¹ , Duresa Tesfaye Muleta²

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.5 , pp.27-33, May-2021

Online published on May 31, 2021

Copyright © Gutu Birhanu Oliy, Duresa Tesfaye Muleta . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Agricultural residue has great potential to offer domestic energy demand for rural community. Utilizing the residue as it is, does not fit to environmentally friend and not suitable to sustainable development scheme. Nevertheless, burning corn cob residue without change their nature to recover desirable heat considered as inefficient and insufficient. Because combustion of corn cob residual yields low heating value and density. Moreover, poor consumption of the residue subjective to respiratory infection disease. Therefore, converting the residue into useful energy resource is very imperative. To enhance the utilization, upgrading of the residue is most important. As a result, corn cob residue was carbonized, applying an improved carbonizer with very limited supply of air. On drum body, certain shacks were provided to follow up enhancement of carbonization process which by turn decrease carbonizing time. After corncob carbonization was completed, carbonized corncob was extracted from reactor over prepared floor to reduce temperature. Meanwhile products were carefully removed to minimize losses and screened to separate products. Hence charred and uncharred products were identified and organized as well as mass of broken & unbroken charred were separated and measured. Thus, mass of charred and uncharred was to be 109.3 and 15.7 kg respectively whereas mass of broken and unbroken became 4.6 & 104.7 kg respectively. Volume based conversion rate of improved carbonizer became 86.36 % whereas 56 % for the former carbonizer. Time acquired per batch for improved carbonize became 90 to 110 minutes whereas 3 to 4 hours depending on season & environment.

Key-Words / Index Term :
Corncob residue, Improved, carbonizer,Charred, Hole

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