Abstract
Geothermal pavement systems are novel to the paving industry. It is the combination of ground source heat pumps and permeable pavements which treats urban runoff and utilises renewable energy for heating and cooling applications. An energy and temperature balance was developed for two experimental geothermal paving systems. The heat fluxes were analysed for a heating and cooling cycle to determine the thermogeological relationship for the systems. A 4th order Runge-Kutta numerical method was developed to model the heat fluxes and energy balance using measured temperature data and other environmental factors such as solar radiation, convection and evaporation heat fluxes for the pavement system. The model was statistically tested for its validity and it can be concluded that the Runge-Kutta technique proved to be an effective and reliable predictive tool.
| Original language | English |
|---|---|
| Pages (from-to) | 315-344 |
| Number of pages | 30 |
| Journal | Road Materials and Pavement Design |
| Volume | 12 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 1 Apr 2011 |
Funding
The present research was supported and funded by Hanson Formpave Ltd. Theauthors would like to thank Dr. Piotr Graboweicki (Environmental Agency, U.K), and the members of the Urban Water Research Group, Institute of Infrastructure and Environment, University of Edinburgh for their helpful comments and supportive discussions on the presented research work. The authors gratefully acknowledge Rishi Arora from the design and digital media program, University of Edinburgh for his reviews, graphical and editorial assistance.
Keywords
- Geothermal energy balance
- Ground-source heat pumps
- Permeable pavements
- Runge-kutta
- Stormwater reuse
- Urban runoff
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