Experimental and numerical modeling research of rubber material during microwave heating process
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This paper aims to investigate the heating behaviors of block rubber by experimental and simulated method. The COMSOL Multiphysics 5.0 software was utilized in numerical simulation work. The effects of microwave frequency, power and sample size on temperature distribution are examined. The effect of frequency on temperature distribution is obvious. The maximum and minimum temperatures of block rubber increase first and then decrease with frequency increasing. The microwave heating efficiency is maximum in the microwave frequency of 2450 MHz. However, more uniform temperature distribution is presented in other microwave frequencies. The influence of microwave power on temperature distribution is also remarkable. The smaller the power, the more uniform the temperature distribution on the block rubber. The effect of power on microwave heating efficiency is not obvious. The effect of sample size on temperature distribution is evidently found. The smaller the sample size, the more uniform the temperature distribution on the block rubber. However, the smaller the sample size, the lower the microwave heating efficiency. The results can serve as references for the research on heating rubber material by microwave technology.
This project is supported by Natural Science Foundation of Shandong Province in China(Grant no. ZR2013EEL009), and jointly supported by the Project of Shandong Province Science and Technology Development Planning(Grant no. 2012GSF11604). The authors sincerely appreciate the support by National Natural Science Foundation of China(Grant no. 51075424), and appreciate the support by Collaborative Innovation Center of Green Tyres & Rubber in Shandong Province(Grant no. 2015GTR0009; 2014GTR0014).
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Conflict of interest
On behalf of all authors, the corresponding author states that there is no conflict of interest.