Comprehensive review on ideas, designs and current techniques in solar dryer for food applications

Naveenkumar, Rasaiah; Ravichandran, Manickam; Harish, Ravikumar; Ruskin, Jegan Joywin; Pozhingiyarasan, Nagarajan; Kolanjinathan, Annadurai

doi:10.1007/s11356-023-28951-6

Cited by 5 publications

(2 citation statements)

References 137 publications

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“…Both solutions can take time, but reducing food loss and wastage can help instantly as it can increase food availability without increasing production. Among the numerous ways of food preservation, solar drying is one of the most commonly practiced and effective methods (Kumar et al, 2023a;Naveenkumar et al, 2023;Shimpy et al, 2022a, b). It reduces the moisture content of the food items up to a level (below 10% wet basis) where degradation of food by any microbial and fungal growth is not possible.…”

Section: Introductionmentioning

confidence: 99%

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Design and optimization of a domestic solar dryer: an analytical approach

Shimpy,

Kumar,

Kumar

2024

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PurposeFood loss and wastage is an issue of global concern and the household sector is one of the biggest contributors to this. Solar drying has been explored by many eminent researchers as a solution to this problem but there have been concerns about the lack in designs, higher cost, lower performance, and consumer acceptability. The present research aims to design a small-scale domestic solar dryer by using computer software.Design/methodology/approachResponse surface methodology (RSM) and computational fluid dynamics (CFD) are used to design the domestic solar dryer. Initially, design variables (inlet and outlet vent height) are identified and a design of experiments has been created using RSM for set of experimental runs. The experimental runs suggested by RSM were carried out using CFD simulation in COMSOL Multiphysics software and the results were used for optimization of response variables (outlet velocity and drying chamber temperature) in RSM.FindingsOutlet vent height was found to be most significantly affecting parameter to both the responses. The optimum values of inlet and outlet vent heights were 0.5 and 2.5 cm, respectively with the overall desirability of 0.728. The model accuracy was tested by conducting a confirmation test as post processing in design expert software.Originality/valueDesigning a solar dryer is a complex, costly and time consuming process, this study presents an easy, economic and fast method to design a new solar dryer. It would help researchers to design and develop new domestic as well as large size industrial solar dryer.

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Section: Introductionmentioning

confidence: 99%

“…Among the numerous ways of food preservation, solar drying is one of the most commonly practiced and effective methods (Kumar et al. , 2023a; Naveenkumar et al. , 2023; Shimpy et al.…”

Section: Introductionmentioning

confidence: 99%