Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Validated combined first and last year borefield sizing methodology.

Wouter Peere 1, Damien Picard 1,2, Iago Cupeiro Figueroa 1, Wim Boydens 2,4, Lieve Helsen 1,3
1 Department of Mechanical Engineering, University of Leuven (KU Leuven), Leuven, Belgium
2 Boydens Engineering, Dilbeek, Belgium
3 EnergyVille, Thor Park, Waterschei, Belgium
4 Department of Architecture and Urban planning, University of Ghent, Ghent, Belgium

Abstract: Sizing a borefield is a complex task and a number of methods are available in literature with varying degree of complexity and accuracy. In this paper a novel method is put forward in the medium complexityaccuracy range of the spectrum, by combining two existing methods. This new methodology is validated using the commercial program Earth Energy Designer and dynamic simulations for two cases. It is conceptually shown and numerically proven that the proposed method is more universally accurate than the two existing ones it combines, while maintaining the same complexity of use. The code implementation of this new method, is available as GHEtool on GitHub.
Keywords: Borefield sizing method, ASHRAE, three-pulse, first and last year of operation, validation
Pages: 49 - 55