Laboratory Study on Solar Collector of Thermal Conductive Asphalt Concrete
Laboratory Study on Solar Collector of Thermal Conductive Asphalt Concrete
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DOI：
10.6135/ijprt.org.tw/2009.2(4).130
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发表时间：
2009-07
影响因子：
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通讯作者：
Shaopeng Wu;Mingyu Chen;Hong Wang;Y. Zhang
中科院分区：
文献类型：
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作者：
Shaopeng Wu;Mingyu Chen;Hong Wang;Y. Zhang
目前的兴趣是充分利用沥青路面和机场跑道作为环境友好的太阳能集热器，用于邻近建筑物的加热和冷却，以及直接保持路面不结冰。研究了沥青路面热能的提取过程。水流过插入小型实验室制备的沥青混凝土板内的铜管，用作热交换器。作为流经沥青混凝土板的结果的水温度的上升被用作热交换效率的指标。利用导热填料来提高沥青混凝土的导热性，从而提高沥青收集器的效率。实验结果表明，导电沥青混凝土（CAC）可以提高太阳辐射的热能。循环水对降低沥青混凝土内的高温具有冷却作用，从而降低其永久变形的风险。重点是混合料设计，以制备一种有效的热交换器，能够从沥青路面中提取最大的热量。
It is current interest to make good use of asphalt pavements and airport runways as environmentally friendly solar collectors for the heating and cooling of adjacent buildings as well as to keep the pavements ice-free directly. The process of extracting heat energy from asphalt pavements was investigated in this study. Water flowing through copper tubes inserted within small laboratory prepared asphalt concrete slabs was used as heat exchanger. The rise in water temperature as a result of flow through the asphalt concrete slab was used as the indicator of the efficiency of heat exchange. Thermal conductive fillers were utilized to improve the thermal conductivity of asphalt concrete and thus resulting in an improved efficiency of asphalt collector. Experimental results showed that the heat energy obtained from solar irradiation can be enhanced by means of Conductive Asphalt Concrete (CAC). The circulating water has a cooling effect on decreasing the high temperature within asphalt concrete and thus reducing its risk of permanent deformation. Focus is on mixture design to prepare an effective heat exchanger that is capable to extract a maximum heat from asphalt pavements.