کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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4676221 | 1634492 | 2010 | 6 صفحه PDF | دانلود رایگان |
Hydronic snow melting on pavement has been used as an alternative to the conventional chemical method based on chloride salts. In the present work, dynamic snow-melting experiments were performed on a hydronically-heated inclined pavement. The effects of design parameters including the idling time, the fluid temperature and the tilt angle on the snow-melting time were analyzed. Further, the snow thickness profile during the snow-melting process was obtained. Experimental results showed that the symmetry of the snow-melting process around the hydronic pipes was destroyed on the inclined pavement, which is different from the case on the horizontal pavement. Because a part of melted slurry drained out of the snow-melting region, the capillary effect in the snow layer tended to be weakened, thereby prolonging the total snow-melting time. The phenomenon of critical free-area ratio was still found during the snow-melting process on the inclined pavement. The optimization of the layout of hydronic pipes and the idling time is a major approach to improving the performance of practical hydronic snow-melting systems.
Journal: Cold Regions Science and Technology - Volume 63, Issues 1–2, August 2010, Pages 44–49