Title Experimental investigation of hydronic snow melting process on the inclined pavement
Author Wang, H.; Liu Linbo; Chen, Z.
Author Affil Wang, H., Hebei University of Technology, School of Energy and Environment Engineering, Tianjin, Hebei, China. Other: Yokohama National University, Japan
Source Cold Regions Science and Technology, 63(1-2), p.44-49, . Publisher: Elsevier, Amsterdam, Netherlands. ISSN: 0165- 232X
Publication Date Aug. 2010
Notes In English. Based on Publisher- supplied data GeoRef Acc. No: 309531
Index Terms capillarity; design; experimentation; melting; snow; temperature; experimental studies; heating; hydronic pipes; optimization; pavement; roads
Abstract 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.
URL http://hdl.handle.net/10.1016/j.coldregions.2010.04.007
Publication Type journal article
Record ID 65006576