Coupling a Hydronic Heating Pavement to a Horizontal Ground Heat Exchanger for harvesting solar energy and heating road surfaces
Artikel i vetenskaplig tidskrift, 2020

The traditional method for anti-icing roads is distributing salt and sand. However, the method causes environmental pollution and damages to road infrastructures. A renewable alternative method for winter maintenance of roads is to use Hydronic Heating Pavement (HHP), coupled to a Ground Heat Exchanger (GHE). The aim of this paper is to examine the feasibility of the coupled HHP system to a Horizontal GHE (HGHE) for harvesting solar energy during summer and anti-icing road surfaces during winter. A hybrid 3D numerical simulation model is used to analyze the harvesting and anti-icing operations. Furthermore, a 2D numerical simulation model is used to calculate the heat loss from the HGHE to the surrounding ground. The climate data are obtained from Östersund, a city in the middle of Sweden with long and cold winter period. The results showed that the amount of harvested solar energy during summer is, on average, 99kWh/(m2⋅year). Less than 10% of this energy is lost to the surrounding ground. In addition, the required energy for anti-icing the road surface is 75kWh/(m2⋅year). Applying this amount of energy for anti-icing the road surface results in remaining, on an annual average, 580 h of slippery condition on the road surface.

Hydronic pavement

Required energy

Ice-free road

Anti-icing

Heat loss

Författare

Raheb Mirzanamadi

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Carl-Eric Hagentoft

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Pär Johansson

Chalmers, Arkitektur och samhällsbyggnadsteknik, Byggnadsteknologi

Renewable Energy

0960-1481 (ISSN)

Vol. 147 1 447-469

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Ämneskategorier

Energiteknik

Infrastrukturteknik

Energisystem

DOI

10.1016/j.renene.2019.08.107

Mer information

Skapat

2019-10-02