EXPLOITATION OF SOLAR ENERGY COLLECTED BY THE PLASTIC GREENHOUSES FOR DRYING AGRICULTURAL AND INDUSTRIAL WASTES OF BANANA

Document Type : Original Article

Authors

1 Associate Prof., Ag. Eng. Dept., Fac. of Ag., Kafrelsheikh Univ., Egypt.

2 Lecturer, Ag. Eng. Dept., Fac. of Ag., Kafrelsheikh Univ., Egypt.

3 Researcher, Agricultural Engineering Research Institute, Egypt.

4 M.Sc. Student, Ag. Eng. Dept., Kafrelsheikh Univ., Egypt.

Abstract

Banana is the most waste generation among economic plants in the field due to sequence operations done during production year around. Drying air characteristics; greenhouse solar drier effectiveness; banana tree residues and banana peels distribution way on drying trays are highlighted for drying process optimization. Dried banana wastes introduced for lamb feeding is investigated. Both energy and exergy analyses of the drying process of banana wastes, using three different solar collectors in geometric shape with three independent drying chambers having the same geometric dimensions (mixed-mode forced convection type solar drier), are presented. Banana wastes get sufficiently dried at temperatures between 30°C and 54°C. Throughout the experimental procedure, air relative humidity did not exceed 66%, and solar radiation ranged from 69.34 to 871.6W/m2. Drying air mass flow was maintained within the interval of 0.0130 to 0.0143kg/s. Under these experimental conditions, two days were needed to reduce the moisture content to approximately one-fifteenth of the original value, in particular from 14.153kgH2O/kg dry matter down to 0.9kgH2O/kg dry matter via Cylindrical solar drier. The Cylindrical solar collector has the highest effect on the drying air capacity which can increase it rapidly decreasing moisture content dramatically in the second day, with the highest drying rate of 0.0302kg H2O and drying efficiency of 46.2% for

Keywords

References

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Misr Journal of Agricultural Engineering
Volume 31, Issue 3
July 2014
Pages 1121-1156

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