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Modeling the Effect of Dryer Configurations on the Thin-Layer Solar Drying Kinetics of Ogbono Seeds (Irvingea Gabonensis) CIGR Journal
Ezeanya, Nnaemeka Charles; Nwakuba, Nnaemeka Reginald.
This paper aimed at modeling the effect of dryer configurations on the thin-layer solar drying kinetics of ogbono seeds. Ogbono seeds were dried using a solar drying system, which was a forced convection distributed type solar collector, equipped with a sun-tracking mechanism. The seeds were dried at four different tilt angles of 0, 5, 10, and 15°; two absorber plate thicknesses of 1.5 mm and 2.7mm; and a constant air velocity of 2 ms-1. The drying data obtained from the experiment was fitted to six thin-layer drying predictive models. The effective moisture diffusivities at varying treatments as well as the activation energy of the ogbono seeds were determined. Results from the experiment revealed that the drying kinetics of the seeds varied with the...
Tipo: Info:eu-repo/semantics/article
Ano: 2023 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/8477
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Modeling of thin-layer solar drying kinetics of cassava noodles (tapioca) CIGR Journal
Ezeanya, Nnaemeka Charles.
This work aimed at modeling thin-layer solar drying of cassava noodles (tapioca). The selection of good drying models for dryers helps to improve their efficiency. Drying data of tapioca was obtained using a forced convection solar dryer. The treatment combinations of the experiment comprise of air flow velocities (V) of 1.5, 2.5, and 3.5 m/s; drying layer thicknesses (B) of 0.48 and 0.72 cm; and initial moisture contents (Mi) of 297, 186, and 122% (dry basis). Eleven thin-layer drying models from literature, in addition to a new model developed in this work were all fitted to the solar drying data of tapioca. Least square regression analysis was carried out and comparison between drying models was made using goodness of fit statistical parameters. Drying...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering; Power and machinery Engineering Cassava noodles drying models statistical parameters effective moisture diffusivity activation energy Nigeria.
Ano: 2018 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4578
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