Simulation of a vertical ground heat exchanger as low temperature heat source for a closed adsorption seasonal storage of solar heat

Get It @ ULg(opens in a new window)|View at Publisher|
Export
| Download | More...

Energy Procedia
Volume 48, 2014, Pages 370-379
2nd International Conference on Solar Heating and Cooling for Buildings and Industry, SHC 2013; Freiburg; Germany; 23 September 2013 through 25 September 2013; Code 104547
Simulation of a vertical ground heat exchanger as low temperature heat source for a closed adsorption seasonal storage of solar heat (Conference Paper)
Hennaut, S.a ,
Thomas, S.a,
Davin, E.a,
Skrylnyk, A.b,
Frère, M.b,
André, P.a

a University of Liège, Building Energy Monitoring and Simulation, Avenue de Longwy 185, 6700 Arlon, Belgium
b University of Mons, Energy Research Cente, Boulevard Dolez 31, 7000 Mons, Belgium
View references (9)
Abstract

This paper deals with the simulation of a vertical geothermal heat exchanger as low temperature heat source for a closed adsorption seasonal heat storage. The seasonal storage should allow reaching a nearly 100 % solar fraction for space heating of a "low energy" building". The selected adsorbent and adsorbate are respectively bromide strontium and water. The studied system, including the building and the ground exchanger, is simulated using the dynamic simulation software TRNSYS. Results show that expected performances are reached with a borehole of 100 m. The evaporation temperatures computed are really close to 0°C which might cause some problems. But an advanced research would maybe impose a deeper borehole to avoid cooling the ground on the long term.