Compression loading behaviour of sunflower seeds and kernels

Selvam, T. Arul; Manikantan, M. R.; Chand, Tarsem; Sharma, Rajiv; Seerangurayar, T.

doi:10.2478/intag-2014-0045

Cited by 10 publications

(7 citation statements)

References 13 publications

(11 reference statements)

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“…Higher values of the pea seed moisture content caused a decrease the modulus elasticity of the seed tested (Kaifas, 1984). The same dependence was obtained for wheat seeds by Babić et al (2011), corn seeds by Babić et al (2012), and for sunflower seeds by Selvam et al (2014).…”

Section: Introductionsupporting

confidence: 80%

Physical and mechanical properties of processed pea, bean, spinach and radish seeds

Ponjičan¹,

Radomirovic²,

Kešelj³

et al. 2018

J Proc Ener Agri

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The physical and mechanical properties of pea, bean, spinach and radish seeds, both processed and packaged for sale, were examined under laboratory conditions. The experiment was conducted in order to determine the initial parameters necessary for adjusting the harvester mode so as to reduce the seed damage and losses. Therefore, the results obtained are of immense importance to the selection of appropriate feeds, i.e. the metering mechanism, and setting the operating mode. The following basic physical properties of seeds were measured: dimensions, shape, moisture content, mass of 1000 seeds, the bulk density and the angle of static friction. Mechanical properties were determined by measuring the slope of the load depending on the strain. The slope of the curve load/deflection was determined in three intervals. The first slope of the curve was measured in the area of elastic deformation, the second slope in the area of elastic/plastic deformation, and the third for the rupture point. On the basis of the mean value of the cross-section, the destruction stress and the secant modulus of elasticity were calculated at the point of destruction.

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Section: Introductionsupporting

confidence: 80%

Physical and mechanical properties of processed pea, bean, spinach and radish seeds

Ponjičan¹,

Radomirovic²,

Kešelj³

et al. 2018

J Proc Ener Agri

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“…Hence, unlike the matured coconuts, the presence of high moisture in the tender coconut husk may facilitate easy punching. Similarly, Selvam, Manikantan, Chand, Sharma, and Seerangurayar () also reported that the interaction of variety and moisture content has a significant effect on rupture force and initial cracking force for sunflower kernel and seed.…”

Section: Resultsmentioning

confidence: 83%

Mechanical properties of tender coconut (Cocos nuciferaL.): Implications for the design of processing machineries

Pandiselvam

Manikantan

Balasubramanian

et al. 2019

J Food Process Engineering

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The mechanical properties such as punching force, cutting force, punching energy, and cutting energy of tender coconut at its different orientations are pertinent for the design and development of efficient and ergonomic tender coconut processing machineries viz., punch and cutter, trimming machine, and snowball machine. However, the mechanical properties of tender coconut have not been investigated scientifically yet. Hence, the mechanical properties of tender coconut at six different positions were determined. Four genotypes of tender coconut were used in this study, such as Andaman Giant Tall (AGT), Chowghat Orange Dwarf (COD), Kulasekaran Green Dwarf (KGD), and Ganga Bondam Green Dwarf (GBGD). A laboratory-scale texture analyzer with a customized probe for cutting and punching was developed and used for the measurements. The highest punching and cutting force was observed at the bottom section (near fruit base) of the tender coconuts followed by the middle and top section. The maximum punching energy (2.23 J) in fruit top loading position was recorded for GBGD, whereas the minimum punching energy (0.82 J) was observed for the genotype AGT. The highest cutting energy of 11.79, 15.53, and 16.59 J recorded for AGT at flat loading position (top, middle, and bottom, respectively). Statistical analysis indicates that genotypes and loading positions of tender coconut significantly (p ≤ .01) affected the punching and cutting force. Practical applicationsThe basic information of tender coconuts including physical and mechanical properties is crucial for the design and development of tender coconut processing machinery. Earlier, we have reported the physical properties of tender coconuts necessary for the development of a trimming machine. As a follow-up, herein we present the mechanical properties of tender coconut that are essential for the design of components such as punching and cutting tool, knife settings in trimming machine and the rotor design in snowball machine. This is the first scientific report highlighting the mechanical properties of the tender coconuts.

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“…Five hundred grams corn kernels, 100 g corn cobs, 50 g corn stalks and 50 g corn husks were randomly selected from the mixture as a group of samples to determine the moisture contents. Samples were prepared in triplicate and were dried in a DZF-6050 thermostatic drying oven (Rongshida Electric Equipment Co., Ltd., Kunshan, China) at 105 ± 1 • C for 24 h [29]. The moisture contents of kernels, cobs, stalks, hulks, and stigma, measured on a wet basis method, were 24.8 ± 0.19%, 54.5 ± 0.22%, 68.3 ± 0.15%, 26.6 ± 0.17%, and 25.7 ± 0.11%, respectively.…”

Section: Physical Properties Of Componentsmentioning

confidence: 99%

Optimization of the Process Parameters of an Air-Screen Cleaning System for Frozen Corn Based on the Response Surface Method

Zhang

Chen

et al. 2021

Agriculture

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The threshing of frozen corn is accompanied by breakage and adherence, which influence the cleaning performance when the corn-cleaning mixture is separated and cleaned. In order to reduce the impurity ratio and loss ratio during frozen corn cleaning and provide theoretical support for frozen corn combine harvesting, this study employed a self-made air-screen cleaning system with adjustable parameters. The optimal process parameters of frozen corn cleaning were determined by using the response surface method (RSM). The influences of the fan speed (FS), vibrational frequency (VF), and screen opening (SO) on the cleaning performance were explored. The results showed that all three process parameters had significant effects on the impurity ratio (IR) and loss ratio (LR). The fan speed had the most significant impact. The cleaning performance was optimal when the fan speed was 102.7 rad/s, the vibration frequency was 6.42 Hz, and the screen opening was 21.9 mm, corresponding to a 0.80% impurity ratio and a 0.61% loss ratio. The predicted values of the regression models were consistent with the experimental results with a relative error of less than 5%. The reliability and accuracy of regression models were established and confirmed.

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Compression loading behaviour of sunflower seeds and kernels

Cited by 10 publications

References 13 publications

Physical and mechanical properties of processed pea, bean, spinach and radish seeds

Physical and mechanical properties of processed pea, bean, spinach and radish seeds

Mechanical properties of tender coconut (Cocos nuciferaL.): Implications for the design of processing machineries

Optimization of the Process Parameters of an Air-Screen Cleaning System for Frozen Corn Based on the Response Surface Method

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