Experimental analysis and development of novel drying kinetics model for drying grapes in a double slope solar dryer

Natarajan, Sendhil Kumar and Suraparaju, Subbarama Kousik and Muthuvairavan, Guna and Elangovan, E. and Mahendran, Samykano (2024) Experimental analysis and development of novel drying kinetics model for drying grapes in a double slope solar dryer. Renewable Energy, 236 (121508). pp. 1-9. ISSN 0960-1481. (Published)

Preview	Pdf Experimental analysis and development of novel drying kinetics model_ABST.pdf Download (256kB) | Preview
	Pdf Experimental analysis and development of novel drying kinetics model.pdf Restricted to Repository staff only Download (4MB) | Request a copy

Abstract

This experimental study aimed to evaluate the efficacy of natural and forced convective drying techniques in reducing the moisture content of the grapes in comparison with the conventional open sun drying method. Moisture effective diffusivity and activation energy were graphically determined using the Arrhenius equation. In the initial three-day period, forced convection drying significantly reduced moisture from 2000 g to 353 g, with a minimum loss of 14 g. In the next three days, natural convection reduced moisture from 2787 g to 468 g, with a minimum loss of 11 g. These outcomes were then compared to the results of open-sun drying. The investigation showed that open drying and natural convection methods eliminated 25.05 % and 82.35 % of the moisture content, respectively. However, for three days, open-sun drying removed 30.5 % of grape moisture, while forced convection achieved an impressive 83.21 % reduction. The study's innovative mathematical model explained drying curve characteristics, supported by correlation coefficients and parity plots. The comparison shows that the experimental moisture ratios and those predicted by the new correlation exhibit R2 values ranging from 0.984 to 0.994.

Item Type:	Article
Additional Information:	Indexed by Scopus
Uncontrolled Keywords:	Activation energy; Double slope; Drying kinetics; Grapes; Single basin; Solar dryer
Subjects:	T Technology > TJ Mechanical engineering and machinery
Faculty/Division:	Institute of Postgraduate Studies Faculty of Mechanical and Automotive Engineering Technology Centre for Research in Advanced Fluid & Processes (Fluid Centre)
Depositing User:	Mrs Norsaini Abdul Samat
Date Deposited:	20 Nov 2024 03:46
Last Modified:	20 Nov 2024 03:46
URI:	http://umpir.ump.edu.my/id/eprint/42948
Download Statistic:	View Download Statistics

Actions (login required)

View Item