Experimental investigation of the combined translational and rotational movement on an inclined conveyor on radio frequency heating uniformity

Palazoğlu, T. Koray; Miran, Welat

doi:10.1016/j.ifset.2018.01.003

Cited by 20 publications

(6 citation statements)

References 18 publications

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“…6). Compared with the device designed by Palazoglu & Miran (2018), the products placed in the other two devices can mix samples in the hot and cold spots to reduce the internal temperature difference. Moreover, stirrings and mixing are also the effective methods to change sample positions of overheating and cold parts (Hou et al ., 2016a).…”

Section: Applications Of Rf Pasteurisation Treatment For Seedsmentioning

confidence: 99%

“…Diagram of assistance devices used in RF system, including a rotation device adapted from Hao et al . (2021) (a), an inclined conveyor with turntable adapted from Palazoglu & Miran (2018) (b), and a screw conveyor adapted from Zhou & Wang (2019) (c).…”

Section: Applications Of Rf Pasteurisation Treatment For Seedsmentioning

confidence: 99%

“…Since electric field and heat inside products would be redistributed through movement and rotation, three methods have been studied as follows: (1) moving wheat horizontally with conveyor belt at lower speeds in RF cavity(Chen et al, 2016), (2) moving the 5 single layers of almonds from bottom to top in the fivelayer container (Li et al, 2018a) and (3) applying the rotation device in RF treatment (Fig.6). Compared with the device designed byPalazoglu & Miran (2018), the products placed in the other two devices can mix samples in the hot and cold spots to reduce the internal temperature difference. Moreover, stirrings and mixing are also the effective methods to change sample positions of overheating and cold parts(Hou et al, 2016a).…”

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confidence: 99%

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Recent developments in pasteurising seeds and their products using radio frequency heating: a review

Guan

Lin

et al. 2021

Int J of Food Sci Tech

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Food-borne or plant diseases mainly rely on the spread of seeds with pathogens. It is vital to eliminate food/seed-borne pathogens of seeds and their products before commercial import/export or circulation. Radio frequency (RF) heating is identified as an effective method with lack of chemical residues, rapid or volumetric heating and large penetration depth, and also validated as a potential physical method to eliminate pests or pathogens in agricultural products or foods. Although, many reviews have summarised the applications of RF treatment during the process of foods, little comprehensive review has been focused on seeds and their products pasteurised by the RF energy. Comprehensive summary about principles and main applications of RF energy for pasteurising seeds and their products was reported in this review. This review also introduced some typical RF heating systems, thermal death kinetics of pathogens, influences of RF heating on germination rate of seeds and some ways for improving uniformity of RF heating. Furthermore, this review recommended the future research directions about treatment of seeds and their products using RF energy, especially for seed industry to control the pathogens in seeds without reducing their quality after RF treatments.

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Section: Applications Of Rf Pasteurisation Treatment For Seedsmentioning

confidence: 99%

Section: Applications Of Rf Pasteurisation Treatment For Seedsmentioning

confidence: 99%

mentioning

confidence: 99%

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Recent developments in pasteurising seeds and their products using radio frequency heating: a review

Guan

Lin

et al. 2021

Int J of Food Sci Tech

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“…F. Inada et al [4] discussed the stability analysis of a twodegree-of-freedom system combined with a rotational and translational system. T. Koray Palazoğlu and Welat Miran [5] experimentally investigated the combined translational and rotational movement on radio frequency heating uniformity. The complex dynamics of a mechanical mechanism [6] can be solved both numerically and analytically by utilising the harmonic balance technique and RK fourth-order method.…”

Section: Introductionmentioning

confidence: 99%

The Variational Iteration Method for a Pendulum with a Combined Translational and Rotational System

Amir,

Ashraf,

Haider

2024

Acta Mechanica Et Automatica

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The dynamic analysis of complex mechanical systems often requires the application of advanced mathematical techniques. In this study, we present a variation iteration-based solution for a pendulum system coupled with a rolling wheel, forming a combined translational and rotational system. Furthermore, the Lagrange multiplier is calculated using the Elzaki transform. The system under investigation consists of a pendulum attached to a wheel that rolls without slipping on a horizontal surface. The coupled motion of the pendulum and the rolling wheel creates a complex system with both translational and rotational degrees of freedom. To solve the governing equations of motion, we employ the variation iteration method, a powerful numerical technique that combines the advantages of both variational principles and iteration schemes. The Lagrange multiplier plays a crucial role in incorporating the constraints of the system into the equations of motion. In this study, we determine the Lagrange multiplier using the Elzaki transform, which provides an effective means to calculate Lagrange multipliers for constrained mechanical systems. The proposed solution technique is applied to analyse the dynamics of a pendulum with a rolling wheel system. The effects of various system parameters, such as the pendulum length, wheel radius and initial conditions, are investigated to understand their influence on the system dynamics. The results demonstrate the effectiveness of the variation iteration method combined with the Elzaki transform in capturing the complex behaviour of a combined translational and rotational system. The proposed approach serves as a valuable tool for analysing and understanding the dynamics of similar mechanical systems encountered in various engineering applications.

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“…Many effective measures have been taken to improve the uniformity of RF heating in agricultural products, such as equipment improvement, heating parameter adjustment, sample movement or rotation, container or packaging optimization, etc. [15][16][17], where the optimization of container or sample shape is a more practical and less costly method. Huang et al [18] reported that the container with round corners could provide better heating uniformity for soybeans than rectangular container, and Alfaifi et al [19] found that rounding the corners and edges of sample could further improve the RF heating uniformity.…”

Section: Introductionmentioning

confidence: 99%

Radio frequency heating for corn seeds: Model development and uniformity optimization

et al. 2020

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Radio frequency (RF) heating has been considered as a promising method for food pasteurization and disinfestations, materials and heating uniformity are the main considerations in developing and scaling-up RF treatment protocols. In this study, an experimentally validated model of corn seeds was developed to investigate its RF heating characteristics and effects of sample shape on heating uniformity. Results showed that hot spots distributed in the corners and edges but cold ones in the centre of the rectangular sample, which led to the concentration of electric field at the sample edges, thus increased their electric field intensity and loss power. Comparing the temperature distributions of corn samples in six shapes, the best heating uniformity was observed in the special round sample (round corners, edges and surfaces), its uniformity index was 0.04, as its special round surface made the direction of the electromagnetic field in the sample incline to the centre, and homogenized the electric field intensity and loss power density. The results provide an evidence for temperature prediction and uniformity improvement of corn seeds during RF heating.

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Experimental investigation of the combined translational and rotational movement on an inclined conveyor on radio frequency heating uniformity

Cited by 20 publications

References 18 publications

Recent developments in pasteurising seeds and their products using radio frequency heating: a review

Recent developments in pasteurising seeds and their products using radio frequency heating: a review

The Variational Iteration Method for a Pendulum with a Combined Translational and Rotational System

Radio frequency heating for corn seeds: Model development and uniformity optimization

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