Next Article in Journal
Membrane-Based Processes: Optimization of Hydrogen Separation by Minimization of Power, Membrane Area, and Cost
Next Article in Special Issue
Multiresponse Optimization of Ultrasonic-Assisted Extraction for Aurantii Fructus to Obtain High Yield of Antioxidant Flavonoids Using a Response Surface Methodology
Previous Article in Journal
Simulation of High Pressure Separator Used in Crude Oil Processing
Previous Article in Special Issue
Optimization of Microwave-Assisted Extraction of Essential Oil from Vietnamese Basil (Ocimum basilicum L.) Using Response Surface Methodology
Article

Impact of Filled Materials on the Heating Uniformity and Safety of Microwave Heating Solid Stack Materials

1
College of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China
2
School of Electronic Information Engineering, China West Normal University, Nanchong 637002, China
3
State Key Laboratory of Efficient Utilization for Low Grade Phosphate Rock and Its Associated Resources, Wengfu Group, Guiyang 550014, China
*
Author to whom correspondence should be addressed.
Processes 2018, 6(11), 220; https://doi.org/10.3390/pr6110220
Received: 16 October 2018 / Revised: 27 October 2018 / Accepted: 29 October 2018 / Published: 7 November 2018
(This article belongs to the Special Issue Microwave Applications in Chemical Engineering)
Microwave heating of solid stack materials is common but bothered by problems of uneven heating and electric discharge phenomena. In this paper, a method introducing fluid materials with different relative permittivity is proposed to improve the heating uniformity and safety of solid stack materials. Simulations have been computed based on the finite element method (FEM) and validated by experiments. Simulation results show that the introducing of fluid materials with proper relative permittivity does improve the heating uniformity and safety. Fluid materials with the larger real part of relative permittivity could obviously lower the maximum modulus value of the electric field for about 23 times, and will lower the coefficient of variation (COV) in general, although in small ranges that it has fluctuated. Fluid materials with the larger imaginary part of relative permittivity, in a range from 0 to 0.3, can make a more efficient heating and it could lower the maximum modulus value of the electric field by 34 to 55% on the whole studied range. However, the larger imaginary part of relative permittivity will cause worse heating uniformity as the COV rises by 246.9% in the same process. The computed results are discussed and methods to reach uniform and safe heating through introducing fluid materials with proper relative permittivity are proposed. View Full-Text
Keywords: microwave heating; uniformity analysis; electric discharge analysis microwave heating; uniformity analysis; electric discharge analysis
Show Figures

Figure 1

MDPI and ACS Style

Wang, J.; Hong, T.; Xie, T.; Yang, F.; Hu, Y.; Zhu, H. Impact of Filled Materials on the Heating Uniformity and Safety of Microwave Heating Solid Stack Materials. Processes 2018, 6, 220. https://doi.org/10.3390/pr6110220

AMA Style

Wang J, Hong T, Xie T, Yang F, Hu Y, Zhu H. Impact of Filled Materials on the Heating Uniformity and Safety of Microwave Heating Solid Stack Materials. Processes. 2018; 6(11):220. https://doi.org/10.3390/pr6110220

Chicago/Turabian Style

Wang, Jing, Tao Hong, Tian Xie, Fan Yang, Yusong Hu, and Huacheng Zhu. 2018. "Impact of Filled Materials on the Heating Uniformity and Safety of Microwave Heating Solid Stack Materials" Processes 6, no. 11: 220. https://doi.org/10.3390/pr6110220

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop