A heat-pulse method for detecting ice formation on surfaces

被引：7
|
作者：
Dongo, Patrice D. [1 ]
Machrafi, Hatim [2 ]
Minetti, C. [1 ]
Amato, Alessandro [1 ]
Queeckers, P. [1 ]
Iorio, C. S. [1 ]
机构：
[1] Univ Libre Bruxelles, Micrograv Res Ctr, Campus Solbosch,CP165-62,Ave P Heger, B-1050 Brussels, Belgium
[2] Univ Liege, Thermodynam IrreversiblePhenomena, Allee 6 Aout 19, B-4000 Liege, Belgium
来源：
THERMAL SCIENCE AND ENGINEERING PROGRESS | 2021年 / 22卷
关键词：
Ice detection criteria; Ice thermal capacity; Graphene; Heat-pulse; Ice formation; Thermal relaxation; Thermal excitation;
D O I：
10.1016/j.tsep.2020.100813
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Early detection of ice formation on surfaces is a crucial requirement in many applications such as wind turbines, aeroplane's wings, and radar domes. This paper presents the concept of a heat-pulse ice detection system. Its principle consists of recording the temperature evolution and assessing the relaxation time after the surfaces are subject to a heat excitation generated by an electrical pulse. The sensor comprises thin graphene films embedded in pre-preg layers of aeronautical grade as well as thermocouples to record the temperatures profiles at given locations. The criterion of ice detection exploits the high thermal capacity of ice compared to the air to capture the formation of icy spots. Numerical simulations and comparison with experimental investigations have been carried out to validate the principle and criteria of the ice detection system.
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页数：8
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