Mass and Energy Balance Analysis of Pneumatic Dryers for Cassava and Development of Optimization Models to Increase Competitiveness in Nigeria.
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Date
2019-01-18
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Abstract
The use of locally fabricated flash drying system is a major challenge for the production of High
Quality Cassava Flour (HQCF). Thus, this study focuses on analysis of pneumatic dryers for
cassava processing and its significance relates to its promise to further our understanding of the
performance of the existing design models of pneumatic dryers and to identify new way to improve
drying performance of the dryers. Four different design models of pneumatic dryer for HQCF drying
were evaluated at three cassava processing centers. The dryers were subsequently modified based on minimum air. The dryer models were assessed based on energy efficiency, specific heat
consumption and thermal efficiency. The highest energy efficiency was recorded for the positive,
single cyclone system, dryer model 2 (+1C) which increased from 63.27 to 78.55% while its specific
heat consumption was reduced from 3.79 to 3.06 MJ/kg after modification. Furthermore, the
modification reduces the fuel consumption in all the dryer models by 22%, 14%, 14% and 16%
respectively. Thus, it is established that the positive, single cyclone system had the better drying
performance of all the dryer models evaluated.
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Adegbite, S. A., Adebayo, A., Olukunle, O. J., Olalusi, A. P., Asiru, W. B. and Awoyale, W. (2019): Mass and Energy Balance Analysis of Pneumatic Dryers for Cassava and Development of Optimization Models to Increase Competitiveness in Nigeria. Current Journal of Applied Science and Technology, 32(3): 1-11. https://doi.org/10.9734/CJAST/2019/46215.