The Experimental and Numerical Snow-melting Investigation of Pavement with Embedded CNF & PTF as High-efficiency Thermal Source
In this paper, a novel pavement snow-melting system is successfully developed, which is consisted of four self-governed and mutual-coordinated functional units: carbon nano-fiber & polyethylene terephthalate film (CNF & PTF) based pavement, solar energy based power supply facility, environmental parameters monitoring sensors and PC intelligent control unit.In the construction of pavement, the super-thin CNF & PTF was employed as high efficiency electro-thermal source to be embedded in pavement with the other five parts: stone and sand formed substrate foundation, polystyrene thermal insulation layer, thin aluminium-foil heat radiation film, waterproof membrane and normal concrete surface layer.With the alternative energy supplements (grid power or solar energy), the field snow-melting experiments of system are implemented in the natural environment under effect of multi-parameters (ambient temperature, wind speed, snow density and thickness, weather conditions and input power).Through the analysis of temperature field distributions,the workability, time/energy efficiency and operational cost of system on snow-melting are estimated respec tively.And the well coincidence and agreement of snow-melting results are also mutually verified between the experiments and FEM based numerical simulations.It implies that the snow melting system presents ex pected characteristics of excellent workability, high efficiency, long-term stability, low economical cost and environment friendly, and can widely be used to pavement snow-melting as a promising option in the future.
Qiangqiang Zhang Hui Li Yikang Yu Yanchao Zhou Weizhe Chen Tao Chen
School of Civil Engineering, Harbin Institute of Technology, China
国际会议
哈尔滨
英文
295-302
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）