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Materials 2016, 9(4), 231; doi:10.3390/ma9040231

Review on Microwave-Matter Interaction Fundamentals and Efficient Microwave-Associated Heating Strategies

1
School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
2
National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, School of Energy and Power Engineering, Shandong University, Jinan 250061, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Dinesh Agrawal
Received: 3 January 2016 / Revised: 10 February 2016 / Accepted: 15 March 2016 / Published: 25 March 2016
(This article belongs to the Special Issue Microwave Materials Processing)
View Full-Text   |   Download PDF [2006 KB, uploaded 25 March 2016]   |  

Abstract

Microwave heating is rapidly emerging as an effective and efficient tool in various technological and scientific fields. A comprehensive understanding of the fundamentals of microwave–matter interactions is the precondition for better utilization of microwave technology. However, microwave heating is usually only known as dielectric heating, and the contribution of the magnetic field component of microwaves is often ignored, which, in fact, contributes greatly to microwave heating of some aqueous electrolyte solutions, magnetic dielectric materials and certain conductive powder materials, etc. This paper focuses on this point and presents a careful review of microwave heating mechanisms in a comprehensive manner. Moreover, in addition to the acknowledged conventional microwave heating mechanisms, the special interaction mechanisms between microwave and metal-based materials are attracting increasing interest for a variety of metallurgical, plasma and discharge applications, and therefore are reviewed particularly regarding the aspects of the reflection, heating and discharge effects. Finally, several distinct strategies to improve microwave energy utilization efficiencies are proposed and discussed with the aim of tackling the energy-efficiency-related issues arising from the application of microwave heating. This work can present a strategic guideline for the developed understanding and utilization of the microwave heating technology. View Full-Text
Keywords: microwave; mechanisms; dielectric heating; magnetic heating; discharge; efficiency microwave; mechanisms; dielectric heating; magnetic heating; discharge; efficiency
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Sun, J.; Wang, W.; Yue, Q. Review on Microwave-Matter Interaction Fundamentals and Efficient Microwave-Associated Heating Strategies. Materials 2016, 9, 231.

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