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- Title
SOLARDRYERPERFORMANCESTUDYOFSOME CROPS (MINT, OKRA AND GRAPES) II - COMPATIBILITY OF SOLAR DRYING BERA VIOR WITH MATHEMATICAL MODELS FOR THIN LAYER DRYING PROCESS.
- Authors
Hassan, Mona M. A.
- Abstract
In this work, the sun drying behavior of some plants as mint, okra and grapes was investigated. Drying experiments were conducted in Zagazig, Sharkia. During the drying experiments, the solar radiation ranged from 95 to 900 W!m2 , the air velocity from 5 to 12 mis. The solar radiation energy is maximum at midday and minimum at evening in the day of experiment. Moreover, the temperature of ambient air ranged from 36 to 39 °c. Mean relative humidity just above surface of the plants varied between 23 % and 29 %. The drying data were fitted to six different mathematical models. Among the models, the results of statistical analyses undertaken on these models for mint, okra and grapes are given in tables 2, 3 and 4, respectively. The models were evaluated based on Jf, MBE and RMSE. For mint leaves, the Modified Page (I) model was the best descriptive model, it was determined that Jf = 2.52xUT3 , MBE=0.0188 and RMSE = 0. 77611. For okra, the Newton model was the best descriptive model, it was determined that Jf = 3.47xl o-3 , MBE=0.012 and RMSE = 0.051. For grapes, the Wang and Singh model was the best descriptive model, it was determined that lf= l.lxl0-3, MBE=0. 02823 and RMSE = 0.116417.
- Subjects
SOLAR dryers; MATHEMATICAL models; HUMIDITY; THIN layer chromatography; SOLAR radiation
- Publication
Misr Journal of Agricultural Engineering, 2015, Vol 32, Issue 1, p223
- ISSN
1687-384X
- Publication type
Article
- DOI
10.21608/mjae.2015.98708