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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
energy
Experimental investigation of a solar dryer with natural convective heat flow
Renewable Energy, Volume 32, No. 11, Year 2007
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Description
A direct type natural convection solar dryer is designed. It is constructed in local materials (wood, blades of glass, metals) then tested experimentally in foodstuffs drying (cassava, bananas, mango). It is about an experimental approach which consists in analyzing the behavior of the dryer. The study relates mainly kinetics and establishment of drying heat balances. The influence of significant parameters governing heat and mass transfers, such as solar incident radiation, drying air mass flow and effectiveness, is analyzed in order to evaluate its thermal performances. Experimental data can be represented by empirical correlations of the form M(t)=Miexp(-kt) for representation of drying process. The resolution of these drying equations makes-possible to predict total drying time of each product. Moreover, this drying process allows to reduce the moisture content of cassava and sweet banana approximately to 80% in 19 and 22 h, respectively to reach the safety threshold value of 13%. This value permits the conservation of these products about one year without deterioration. The determination of parameters, like ambient temperature, drying chamber temperature, drying air mass flow and incident heat fluxes, allow to predict the drying effectiveness for modeling and refining the dimensioning of the elaborate prototype. © 2006.
Authors & Co-Authors
Gbaha, Prosper
Cote D'ivoire, Abidjan
Institut National Polytechnique Félix Houphouet-boigny
Andoh, Hiroki Y.
Cote D'ivoire, Abidjan
Institut National Polytechnique Félix Houphouet-boigny
Kouassi Saraka, J.
Cote D'ivoire, Abidjan
Institut National Polytechnique Félix Houphouet-boigny
Kaménan Koua, B.
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Touré, Siaka
Cote D'ivoire, Abidjan
Université de Cocody-abidjan
Statistics
Citations: 110
Authors: 5
Affiliations: 2
Identifiers
Doi:
10.1016/j.renene.2006.10.011
ISSN:
09601481
Research Areas
Cancer
Environmental