A Technique for Localized Rapid Soot Oxidation Using Metal Aided Microwave Radiation

Al-Wakeel, Haitham B.; Karim, Zainal Ambri Abdul; Al-Kayiem, Hussain H.

doi:10.1109/tmtt.2015.2504468

Cited by 12 publications

(3 citation statements)

References 33 publications

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“…The electromagnetic power of frequencies spectrum 2.4-2.5 GHz inside a microwave cavity without magnetron was measured using Network Analyzer [21]. As well, the microwave spectrum inside a microwave oven unattached with a magnetron, loaded with soot and thermocouple was measured in [3] using a spectrum analyzer and portable network analyzer. The results showed two resonance frequencies of 2.45 and 2.425 GHz and no effective loss in the incident microwave power due to the reflection in the soot and thermocouple wire.…”

Section: Electromagnetic Powermentioning

confidence: 99%

“…However, there are problems related to measurements of materials loaded inside the microwave oven. Such as, the problem of microwave heating for soot filter regeneration [3], which is how to differentiate if the filter is empty or full of soot because the reflection of the electromagnetic waves inside an empty closed microwave cavity is dangerous for the magnetron. The problem of fruits, vegetables [4], and seeds [5] drying by microwave heating, which is how to assess microwave power rates in microwave dryers with and without temperature regulation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Overview on a Technique to Measure and Control of the Electromagnetic Radiation Inside a Microwave Oven

Thamer¹,

Al-Wakeel²,

MohammadRidha³

et al. 2021

IJCCCE

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The Microwave oven is a system used to convert the electromagnetic energy to thermal energy when the microwave cavity is loaded with a dielectric material. The ordinary microwave ovens are not supported with complex features for detecting parameters such as temperature, weight, and loaded material availability. Due to the lack of material availability, several laboratory and industrial applications require these features to switch off the oven. The reflections of electromagnetic radiation inside an empty microwave oven lead to oven damage. An overview of the microwave oven characteristics and emergence of electromagnetic radiation inside a microwave oven is presented in this study. The parameters measured inside the microwave oven, methods for power attenuation in a microwave oven, microwave power detector, and microwave oven leakage are discussed as well. Moreover in the methodology of this work, proposed a new technique based on the measurement of leaked microwave power to control the microwave oven. The preliminary results showed that the leakage measurement of electromagnetic power changes with the state/phase of the material inside the microwave oven, which ensured the possibility of the proposed promising technique. This work will be continued to connect the microwave oven with a spectrum analyzer and computer via hardware and software interfaces depending on the methodology of this article. A computer code will be developed to read the measured power and automatically switch off the microwave oven depending on materials state. Index Terms— Microwave, power, measurement, control.

show abstract

Section: Electromagnetic Powermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Overview on a Technique to Measure and Control of the Electromagnetic Radiation Inside a Microwave Oven

Thamer¹,

Al-Wakeel²,

MohammadRidha³

et al. 2021

IJCCCE

View full text Add to dashboard Cite

show abstract

“…Microwave heating is widely used in chemical production due to its volumetric and selective heating capabilities. − Organic chemical reactions can be facilitated with microwave technology, which offers rapid heating compared to traditional methods. − For example, microwave synthesis of glycerol from C8–C10 fatty acids achieves an impressive 97.8% conversion rate in just 20 min, while traditional heating yields a conversion rate of 97.3% at a longer process time of 180 min . Microwave heating with γ-Fe 2 O 3 nanoparticles significantly expedites the formation of 1,4-dihydropyridine, surpassing the efficacy of air heating or a water bath .…”

Section: Introductionmentioning

confidence: 99%

Continuous-Flow Microwave Reactor for High-Performance Heating of a Dynamic Chemical Reaction System

Yang,

Xia,

Tian

et al. 2023

Ind. Eng. Chem. Res.

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Continuous-flow microwave reactors find widespread application in chemical production. However, dynamic changes in the dielectric constant of reactants result in a low microwave energy efficiency. This paper reveals a circular waveguide developed using a meta-surface unidirectional propagation of microwaves. This waveguide was integrated into a continuous-flow heating system that efficiently heats materials with varying dielectric constants. A multiphysics model incorporating electromagnetic, fluid heat transfer, and chemical engineering has been built to analyze the microwave heating performance under different loads. Based on simulation and experimental findings, the meta-surface can achieve an energy efficiency of over 90% for loads with dielectric constants from 10 to 80. Moreover, a continuous-flow heating experiment conducted for biodiesel production indicated that meta-surfaces can enhance the heating efficiency by over a quarter. This research presents a promising approach toward efficient continuous-flow microwave heating, which can potentially revolutionize large-scale chemical production in industry.

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On processing strategy to minimize defects while drilling borosilicate glass with microwave energy

Kumar

Sharma

2020

Int J Adv Manuf Technol

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A Technique for Localized Rapid Soot Oxidation Using Metal Aided Microwave Radiation

Cited by 12 publications

References 33 publications

An Overview on a Technique to Measure and Control of the Electromagnetic Radiation Inside a Microwave Oven

An Overview on a Technique to Measure and Control of the Electromagnetic Radiation Inside a Microwave Oven

Continuous-Flow Microwave Reactor for High-Performance Heating of a Dynamic Chemical Reaction System

On processing strategy to minimize defects while drilling borosilicate glass with microwave energy

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