COMPARISON BETWEEN MEASUREMENT AND CALCULATION OF SNOW-MELTING SYSTEM ON ROAD USING SEASONAL ENERGY STORAGE THROUGH FOUNDATION PILES FOR BRIDGE

Abstract

 Solar energy is stored into underground energy piles using heat dissipation pipes embedded beneath pavements as solar heat collectors in summer. Because those l arge inner diameter steel energy piles for a bridge stand close to each other, thermal interference occurs between them. Accordingly, the heat stored under the ground is not released quickly and can be used for snow-melting and de-icing on road in winter. In this paper, the numerical simulations were carried out, taking into account radiate, sensible, latent and conductive heat fluxes that were estimated using weather data. Those calculated results agreed well with the experimental ones in the snow-melting area of 1,896 m² during 2 years.