Effective moisture diffusivity during hot air solar drying of tomato slices
| Autor: | M.H. Kianmehr, A. Arabhosseini, H. Samimi Akhijani |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Solar dryer
Correlation coefficient Moisture 020209 energy Thin layer Thermodynamics 02 engineering and technology Solar drying Thermal diffusivity 0202 electrical engineering electronic engineering information engineering Animal Science and Zoology Wafer Composite material Agronomy and Crop Science Water content Mathematics |
| Zdroj: | Research in Agricultural Engineering. 62:15-23 |
| ISSN: | 1805-9376 1212-9151 |
| DOI: | 10.17221/33/2014-rae |
| Popis: | Samimi. Akhijani H., Arabhosseini A., Kianmehr M.H. ( 2016): Effective moisture diffusivity during hot air solar drying of tomato slices . Res. Agr. Eng., 62: 15-23. Mathematical modelling and effective moisture diffusivity of tomato ( Lycopersicon esculentum) was studied during hot air solar drying. An experimental solar dryer with a swivel collector was used for experiments. The collector followed the solar radiation using a precious sensor. Drying experiments were performed in a thin layer hot air drying at slice thicknesses of 3, 5 and 7 mm and air velocities of 0.5, 1 and 2 m/s. The experimental data were fitted to different math - ematical moisture ratio models and the Page model was selected as the best model according to correlation coefficient R 2 , chi-square χ 2 and root mean square error (RMSE) parameters. The maximum values of moisture diffusivity was 6.98 × 10 -9 m 2 /s at air velocity of 2 m/s and slice thickness of 7 mm while the minimum value of the moisture diffusivity was 1.58 × 10 -9 m 2 /s at air velocity of 0.5 m/s and slice thickness of 3 mm. |
| Databáze: | OpenAIRE |
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