Hydrothermal modeling of porous pavement for its surface de-freezing

被引：27
作者：
Asfour, S. [1 ]
Bernardin, F. [1 ]
Toussaint, E. [2 ]
Piau, J. -M. [3 ]
机构：
[1] Ctr Studies & Expertise Risks Environm Mobil & Ur, Clermont Ferrand, France
[2] Univ Blaise Pascal, Univ Clermont Auvergne, Inst Pascal, BP 10448, F-63000 Clermont Ferrand, France
[3] French Inst Sci & Technol Transport Dev & Network, Nantes, France
来源：
APPLIED THERMAL ENGINEERING | 2016年 / 107卷
关键词：
Hydronic system; Porous asphalt; Thermo-hydraulic model; Surface temperature control; Heat exchanger;
D O I：
10.1016/j.applthermaleng.2016.06.138
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Melting snow or de-icing with a hydronic system may be employed for some critical roads sections particulary sensitive to winter conditions (turns zone, highways upslope or downslope, bridges, etc.) in order to avoid dangerous driving conditions caused by snow or ice. This article presents a hydronic heating system that circulates a heated fluid through a bonding porous asphalt layer, to prevent ice formation at the road surface. In this article, we study the heat exchange between fluid and road. Firstly a 2D thermo-hydraulic model is developed in order to determinate the temperature field in the pavement structure when the fluid circulates in the porous bonding layer. Secondly, the sensibility of the temperature distribution at the road surface is studied to identify the most relevant model parameters. Finally, the evolution of the minimum temperature of the injected fluid with different flow rate is determined in order to keep positive the road surface temperature at any point for given meteorological data. (C) 2016 Elsevier Ltd. All rights reserved.
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收藏
页码：493 / 500
页数：8
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