Low temperature deicing of road infrastructure using renewable energy
Doctoral thesis, 2019
This manuscript presents the experimental and numerical results from a field station of BTES connected HHP system. The field station was constructed during 2017 and experiments on harvesting were conducted during the summer of 2018. The anti-icing and de-icing function of the HHP system were studied during the winter of 2018/2019.
The results revealed that the solar efficiency of the HHP system reach as high as 42 % and 245 kWh/m2 of solar heat was harvested during the summer of 2018. This is a comparably high value for a pavement solar collector. The harvested energy were higher than the supplied heat (132 kWh/m2) during the following winter. However, the cold climate at the field station required supplementary heating since the BTES did not have the capacity to supply the required supply temperature of 7 degC to the HHP. The numerical simulations has reveald that by using a dew-point regulation and weather forecasting the energy consumption can be reduced by 62 % compared to a simple air temperature regulation. Based on the experimental and numerical results it can be concluded that it is feasible to design HHP systems to use low temperature (<10 degC) sources and at the same time achieve a substantial improvement of the surface conditions in a Scandinavian climate.
borehole thermal energy storage
Pavement solar collector
Hydronic heated pavements
Chalmers, Architecture and Civil Engineering, Building Technology
Modelling and evaluation of groundwater filled boreholes subjected to natural convection
Applied Energy,; Vol. 253(2019)
Modeling the thermal performance of low temperature hydronic heated pavements
Cold Regions Science and Technology,; Vol. 161(2019)p. 81-90
Hydronic Pavement Heating for Sustainable Ice-free Roads
Transportation Research Procedia,; Vol. 14(2016)p. 704-713
Paper in proceedings
Josef Johnsson, Bijan Adl-Zarrabi. Pavement solar collector for the northern hemisphere (Under review)
Safe and ice-free bridges using renewable energy sources
Norwegian Public Roads Administration (NPRA), 2014-03-17 -- 2018-12-31.
The Swedish National Road and Transport Research Institute (VTI), 2019-11-01 -- 2021-12-31.
Areas of Advance
Building Futures (2010-2018)
Doktorsavhandlingar vid Chalmers tekniska högskola. Ny serie: 4635
Chalmers University of Technology
Room SB-H4, Sven Hultins gata 6, ACE, Chalmers
Opponent: Professor, Simon Rees, University of Leeds