Power Changes of Electromagnetic Waves Across the Temporal Boundary in Simple Polar-Molecule Reactions

Authors

  • Xingpeng Liu School of Network and Communication Engineering Chengdu Technological University, Chengdu 610064, China
  • Song Zhang School of Network and Communication Engineering Chengdu Technological University, Chengdu 610064, China
  • Kama Huang College of Electronics and Information Engineering Sichuan University, Chengdu 611730, China

DOI:

https://doi.org/10.13052/2021.ACES.J.361215

Keywords:

Electromagnetic power propagation, power changes, a temporal boundary, simple polar-molecule reactions

Abstract

Microwave-assisted chemical reactions have been widely used, but the inhomogeneous heating limits further applications. The aim of this paper is to investigate the power transfer behavior in the simple polar-molecule reactions whose polarization changes with the proceeding of the reactions. At the temporal boundary, based on the continuity of charge and flux and the equivalent transmission line approach of the simple polar-molecule reactions, we discover the power changes in the reactions. The numerical results are in agreement with the theory of the temporal boundary. When the time scale of the component concentration variation is smaller than the wave period, the polarization is not continuous at the temporal boundary. The impedance of the reactions across the temporal boundary changes, and the reflection occurs. Moreover, when the dielectric property of the reactions decreases, the power of the waves increases after the temporal boundary and the waves experience a net energy gain. The results may be helpful in disclosing the non-uniform electromagnetic energy distribution in chemical reactions.

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Author Biographies

Xingpeng Liu, School of Network and Communication Engineering Chengdu Technological University, Chengdu 610064, China

Xingpeng Liu was born in Hegang, China, in 1985. She received the Ph.D. degree in communication and information system from Sichuan University, Chengdu, China, in 2016.

She is currently an Associate Professor with the School of Network and Communication Engineering, Chengdu Technological University, Chengdu, China. Her research interests are in the areas of electromagnetic theory, microwave heating, and microwave chemistry.

Song Zhang, School of Network and Communication Engineering Chengdu Technological University, Chengdu 610064, China

Song Zhang was born in Hefei, China, in 1972. He received the master’s degree in communication and information system from Sichuan University, Chengdu, China, in 2004.

He is currently an Associate Professor with the School of Network and Communication Engineering, Chengdu Technological University, Chengdu, China. His research interests are in the areas of circuit design and signalprocessing.

Kama Huang, College of Electronics and Information Engineering Sichuan University, Chengdu 611730, China

Kama Huang(Senior Member, IEEE) was born in Chongqing, China, in 1964. He received the M.S. and Ph.D. degrees in microwavetheory and technology from the University of Electronic Science and Technology, Chengdu, China, in 1988 and 1991, respectively.

He has been a Professor with the Department of Radio and Electronics, Sichuan University, Sichuan, China, since 1994 and has been the Director of the department since 1997. In 1996, 1997, 1999, and 2001, he was a Visiting Scientist with the Scientific Research Center “Vidhuk” in Ukraine, Institute of Biophysics CNR in Italy, Technical University Vienna in Austria, and Clemson University in the USA, respectively. At these institutions, he cooperated with the scientists to study the interaction between electromagnetic fields and complex media in biological structure and reaction systems. He has published over 100 papers. His research interests are in the areas of microwave chemistry and electromagnetic theory.

Dr. Huang is the Chief Scientist of the National Basic Research Program of China (973 Program), and he has received several research awards from the Chinese government.

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Published

2022-03-10

How to Cite

[1]
X. . Liu, S. . Zhang, and K. . Huang, “Power Changes of Electromagnetic Waves Across the Temporal Boundary in Simple Polar-Molecule Reactions”, ACES Journal, vol. 36, no. 12, pp. 1616–1622, Mar. 2022.

Issue

2021: Vol 36 Iss 12

Section

Articles