![](bg5.png)
The temperature distribution on the middle cut
plane of the simulation when ε
r
=4.2 is shown in
Figure 5. The maximum temperature is 68.2℃,
48.2℃ higher than the ambient temperature due to a
microwave power density of 400W/m
2
and heating
duration of 300s.
Figure 5: Temperature(deg) distribution on x-z cutting
section of the MA unit model (simulation duration: 300s).
This simulation is preliminary for only FR-4 is
taken into consideration in the calculation. But the
power conversion and heating figure are presented.
The overall efficiency is low in current simulation
and further investigation on improving absorbing
rate will be carried out to improve the overall EM-
thermal conversion efficiency.
4 CONCLUSIONS
In this paper, we present the idea of the wind turbine
blades de-icing with MA under microwave heating.
The design of electromagnetic absorbing property of
MA is presented. Multi-physical simulation is
carried out to analyse the heat generation, thermal
distribution and temperature rise of the MA under
microwave heating. The energy conversion
efficiency is given based on the multi physical
simulation. This preliminary simulation show that
MA is possible to be used in microwave de-icing of
wind turbine blades as a wire-less, rapid and flexible
means.
ACKNOWLEDGEMENTS
The author wants to express his gratitude to Dr. Prof.
Jelonnek for his valuable suggestions.
This work is supported partially by the National
Natural Science Foundation of China [Grant number
51706242]; and partially by Natural Science
Foundation of National University of Defense
Technology [Grant number ZK16-03-05].
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