期刊
INTERNATIONAL JOURNAL OF APPLIED ELECTROMAGNETICS AND MECHANICS
卷 43, 期 4, 页码 353-363出版社
IOS PRESS
DOI: 10.3233/JAE-131722
关键词
Asphalt mixtures; microwave heating; thermoelectric coupling; thermal conductivity; temperature field
资金
- National Natural Science Foundation of China [51106001]
In order to improve recycling quality of asphalt mixtures based on microwave heating, thermoelectric coupling theory is researched. Heat conduction equation is built according to Fourier's Law. Series model, parallel model and Maxwell model are studied to solve thermal conductivity of asphalt mixtures. Radiation field model of pyramidal horn antenna is set up and mean value of electric field intensity is measured by experiment. Thermoelectric coupling model is built on the basis of dielectric property of asphalt mixtures. Numerical simulation is performed for the model. It is found that influence of asphalt-aggregate ratio on temperature field is not distinct. Average temperature of asphalt mixtures is related to microwave power and increases with microwave power linearly. The asphalt mixtures using diorite as aggregate have a strongest adsorption capability to energy. The result can simulate hot in-place regeneration process, and has important significance to improve regeneration quality of asphalt mixtures.
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