Effect of wood moisture content and log diameter on conversion efficiency of a drum Kiln

dc.contributor.authorLuwaya, E.
dc.contributor.authorMukanda, M.
dc.contributor.authorBanda, E.
dc.contributor.authorMsimuko, S.
dc.date.accessioned2016-07-19T07:15:06Z
dc.date.available2016-07-19T07:15:06Z
dc.date.issued2015
dc.description.abstractPapers presented to the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, South Africa, 20-23 July 2015.en_ZA
dc.description.abstractIn Zambia wood fuel, as a forest resource currently accounts for 80% of the country’s total energy consumption at household level. About 60.9% of households use firewood for cooking and 24.3% use charcoal while only 13.8% use electricity. Further in rural areas, 87.7% use wood for cooking, 9.5% use charcoal and only 1.5% used electricity. Traditional earth charcoal kilns are the dominant method used in charcoal production, they incur minimal construction costs for rural communities, but have low conversion efficiencies, ranging from 6 to 12%.This causes high annual rate of deforestation due to wood harvesting. For every ton of charcoal produced using traditional kiln depletes 0.1 hectares of woodlands. Zambia has 300 000 hectares per annum rate of deforestation that is increasing at rate of 4% per annum. This research was about determining the effect of moisture content and log diameter on the conversion efficiency of drum type charcoal making kilns by comparative studies in the field. The drum kiln is intended for use at the household level in periurban and rural areas. The log diameters used in the experimentation ranged from 0.04 m to 0.16 m on an average scale. The moisture content of the wood was determined by oven dry method (ASTM-D-4442) which yielded moisture content ranges of 26.92 wt. %, 9.42 wt. %, 8.63 wt. % and 9.06 wt. % respectively.en_ZA
dc.description.librarianam2016en_ZA
dc.format.mediumPDFen_ZA
dc.identifier.citationLuwaya, E, Mukanda, M, Banda, E & Msimuko, S 2015, 'Effect of wood moisture content and log diameter on conversion efficiency of a drum Kiln', Paper presented to the 11th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 20-23 July 2015.en_ZA
dc.identifier.isbn97817759206873
dc.identifier.urihttp://hdl.handle.net/2263/55911
dc.language.isoenen_ZA
dc.publisherInternational Conference on Heat Transfer, Fluid Mechanics and Thermodynamicsen_ZA
dc.rights© 2015 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.en_ZA
dc.subjectCharcoalen_ZA
dc.subjectElectricityen_ZA
dc.subjectRural communitiesen_ZA
dc.subjectZambiaen_ZA
dc.titleEffect of wood moisture content and log diameter on conversion efficiency of a drum Kilnen_ZA
dc.typePresentationen_ZA

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