New Approach for the Prediction of the Electric Field Distribution in Multimode Microwave-Heating Applicators With Mode Stirrers

Plaza-Gonzalez, P.J.; Monzó‐Cabrera, Juan; Catalá-Civera, J.M.; Sánchez‐Hernández, D.

doi:10.1109/tmag.2003.821560

Cited by 63 publications

(55 citation statements)

References 17 publications

(11 reference statements)

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“…1 shows the comparison of present simulation results, experimental results, and simulation results of Plaza-González et al. 4 It can be seen from Fig. 1 that the present simulation results are in better agreement with the experimental results than the previous simulation results.…”

Section: Validation Of Comsol Resultsmentioning

confidence: 49%

“…4 It was found that there is a qualitative agreement between the two results i.e. the temperature profile results of simulation and experiments follow similar trend even though there is a slight deviation between the results.…”

Section: Discussionmentioning

confidence: 63%

“…1 that the present simulation results are in better agreement with the experimental results than the previous simulation results. 4 From this comparison we can say that our simulation procedure of using COMSOL Multiphysics is correct. As we can see from Fig.…”

Section: Validation Of Comsol Resultsmentioning

confidence: 79%

“…3 One of the methods to achieve the uniform distribution of heat inside a microwave cavity is through the use of mode stirrers. Most of the microwave ovens in household as well as in industrial appliances 4,5 did a study to know the effect of mode stirrers on the behavior of the electric field inside a microwave cavity. However they only performed simulations on a 2-dimensional cavity, which is different from the real scenario.…”

Section: Introductionmentioning

confidence: 99%

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Effect of mode stirrers in a multimode microwave-heating applicator with the conveyor belt

Kurniawan

Alapati

Seong

2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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In this work, a numerical study is performed to know the effect of mode stirrers on the temperature distribution inside a microwave cavity with a conveyor belt system. A 3-dimensional simulation model is built and simulated using the COMSOL Multiphysics software. Since it is very difficult to simulate the mode stirrer's motion using COMSOL, eleven still angles of the mode stirrers are considered. The final temperature distribution result is obtained by taking the average of all eleven angles results. Also to get the final temperature of a heated material after it comes out of the cavity, the average of all temperature values in the direction of conveyor belt motion is taken as it is assumed that conveyor belt motion is much slower than the speed of the mode stirrers. The simulation results show that temperature distribution is more uniform for the case with mode stirrers compared to that obtained without mode stirrers. This is confirmed by using standard deviation equation.

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Section: Validation Of Comsol Resultsmentioning

confidence: 49%

Section: Discussionmentioning

confidence: 63%

Section: Validation Of Comsol Resultsmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of mode stirrers in a multimode microwave-heating applicator with the conveyor belt

Kurniawan

Alapati

Seong

2015

Int. J. of Precis. Eng. and Manuf.-Green Tech.

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“…the heated object is placed in a microwave oven) is more close to practical applications. Besides, Plaza-Gonzalez, et al, [86] studied the case of mode stirrers which are widely used by industrial applicators.…”

Section: Txy Zt T Xy Zmentioning

confidence: 99%

Review of Numerical Simulation of Microwave Heating Process

Zhao¹,

Yan²

2011

Advances in Induction and Microwave Heating of Mineral and Organic Materials

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Probing multimode applicator of microwave heating system for E‐field distribution using a silicon carbide sensor and a shielded thermocouple

Iyer

Shivashankar

Sai

et al. 2022

Int J Ceramic Engine & Sci

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Measurement of the field distribution in a multimode applicator of a microwave heating system has been a challenging problem. We report here a simple but comprehensive scheme for its semi‐quantitative estimation under no‐load conditions. It involves the measurement of temperature (T) versus time (t) profiles in a small silicon carbide (SiC) sensor ring positioned at the junction end of a metal‐jacketed microwave‐compatible thermocouple probe arrangement. These heating profiles (T vs. t) were measured using a data acquisition system, keeping the SiC ring at different (x, y, z) positions in the applicator. Using this measurement scheme, the spatial positions with local field minimum as inferred from very high reflected power or those with local field maximum with associated thermal runaway type condition could be well identified. Given the thermal and the dielectric properties of SiC material and the physical dimensions of the sensor ring, a uniform microwave field‐based model with a thermal lumped element type approximation (with no thermal gradient across SiC) was applied for analysis of the T versus t heating profiles. Within this model, the locally effective electric field E could be inferred for low and moderate electric field ranges. While the accuracy of the field estimation is currently limited by the use of the metal‐jacketed thermocouple and other factors, this SiC sensor‐based methodology has the potential to be developed further to be useful in the area of microwave applicator design.

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New Approach for the Prediction of the Electric Field Distribution in Multimode Microwave-Heating Applicators With Mode Stirrers

Cited by 63 publications

References 17 publications

Effect of mode stirrers in a multimode microwave-heating applicator with the conveyor belt

Effect of mode stirrers in a multimode microwave-heating applicator with the conveyor belt

Review of Numerical Simulation of Microwave Heating Process

Probing multimode applicator of microwave heating system for E‐field distribution using a silicon carbide sensor and a shielded thermocouple

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