Vol. 8(3), pp. 022-032, July, 2018
ISSN:2276-7835; ICV: 5.62
Copyright ©2018, the copyright of this article is retained by the author(s)
DOI Link: http://doi.org/10.15580/GJSETR.2018.3.062818070
http://gjournals.org/GJSETR
The Mathematical Modelling of the Effects of Thin Layer Drying of Groundnut (Kerstigiella geocarpa harms)
1OBUMSELI Pacifine Chioma,
2CHINWEUBA Dennis Chukwunonye,
3NWANDIKOM Godfrey Ifeanyichukwu,
4MADUBUIKE Chimaobi Nnaemeka
Greener Journal of Science, Engineering and Technological Research, vol. 8, no. 3, pp. 022-032, July 2018
1,2,3,4Department of Agricultural and Bioresource Engineering, School of Engineering and Engineering Technology, Federal University of Technology, Owerri Imo state Nigeria.
Article No.: 062818070
Type: Research
DOI: 10.15580/GJSETR.2018.3.062818070
A research was done on the effects of mathematical modelling of the thin layer drying of groundnuts (Kerstigiella geocarpa harms) at 67% Moisture Content (% dry basis ) and varying air temperatures of 45, 55 and 65oC, at air velocities of 0.6, 1.0 and 1.5 m/s. In order to select the most suitable form of the drying curve, 5 different thin layer semi-theoretical drying models were fitted to experimental data and the moisture diffusivity was calculated from Fick’s second law as the major equation. The highest value of coefficient of determination (R2), the low values of errors from the Sum of Square Error (SSE) and Root Mean Square Error (RMSE) indicates that the Two-Term model can satisfactorily describe the drying curve of groundnuts (Kerstigiella geocarpa harms) for drying air velocity of 1.5 m/s and temperature of 55ºC. According to the results, the calculated value of effective moisture diffusivity varied from 1.33 to 4.11×10-9m2/s and the value of activation energy varied from 26.29 to 30.57 kJ/mol.
Submitted: 17/06/2018
Accepted: 22/06/2018
Published: 27/07/2018
*Corresponding Author
Chinweuba Dennis Chukwunonye
E-mail: dennischukwunonye @gmail.com
Keywords:
Kerstigiella geocarpa harms, groundnut, thin-layer drying, moisture diffusivity, activation energy
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Journal Name : citation_journal : Greener Journal of Science, Engineering and Technological Research
Publication Status/Date : usp_status_date : 27/07/2018
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