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Scirj, Volume IX [2021]
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Scientific Research Journal

Scirj Volume IX, Issue VIII, August 2021 Edition
ISSN: 2201-2796


Publication starts: 25th August 2021
Full Paper available from: 25th August 2021


ENERGY CONSUMPTION OF YAM SLICE DRYING IN AN EXHAUST GAS WASTE HEAT RECOVERY HOT AIR TRAY DRYER
Ononogbo Chibuike, Dr. Nwufo Olisaemeka Chukwudozie, Dr. Nwakuba Nnaemeka Reginald, Dr. Okoronkwo Chukwunenye Anthony, Dr. Igbokwe Onyechege Johnson, Professor Emmanuel Enyioma Anyanwu

Abstract: Evaluation of the energy consumption during the thin-layer drying of yam slices in an exhaust gas waste heat recovery dryer is presented. The study took cognizance of some energy parameters such as the electric power consumption, thermal energy consumption and specific energy consumption during the drying process. Blanched white yam samples of different thicknesses were subjected to varying conditions of drying air temperatures and velocities of 55, 65, and 75°C; and 1.0, 1.5, and 2.0 m/s. The minimum value of electric power consumption (44.63 W-hr) was achieved at the drying air temperature and velocity of 75 ℃ and 1.0 m/s, and slice thickness of 1.0 cm; whereas a maximum value of 157.70 W-hr was obtained at the drying air temperature and velocity of 55 ℃, 2.0 m/s, and 1.0 cm slice thickness, respectively. The specific energy consumption values were in the range of 40.25 to 97.80, 52.33 to 108.79 and 58.77 to 124.16 kW-hr/kg, respectively for 1.0, 1.5 and 2.0 cm slice thicknesses. The results obtained revealed that the drying air temperature and velocity had an appreciable influence on the values of the energy consumption parameters of the dryer for the yam slice drying. It was observed that for all the experimental treatments, the higher the slice thickness of the yam samples, the higher the obtained energy consumption values.
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Published Issue:

Scirj, Volume IX [2021]
August Issue [In Process]
July Issue
June Issue
May Issue
April Issue
March Issue
February Issue
January Issue


Scirj, Volume VIII [2020]
December Issue
November Issue
October Issue
September Issue
August Issue
July Issue
June Issue
May Issue
Apirl Issue
March Issue
February Issue
January Issue










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