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GEOTABS concept and design : state-of-the-art, challenges and solutions

Eline Himpe (UGent) , Michel Vercautere (UGent) , Wim Boydens (UGent) , Lieve Helsen and Jelle Laverge (UGent)
Author
Organization
Project
MPC-. GT (Model Predictive Control and Innovative System Integration of GEOTABS;-) in Hybrid Low Grade Thermal Energy Systems - Hybrid MPC GEOTABS)
Abstract
GEOTABS refers to the combination of a geothermal heat pump with thermally activated building systems, and is applied in low temperature heating and high temperature cooling of buildings. TABS is a radiant heating and cooling system and is beneficial in terms of thermal comfort and energy efficiency. When combined with a geothermal heat pump, it allows to make efficient use of low grade renewable energy sources. In this paper the benefits and opportunities of GEOTABS are explained. From current practice challenges are identified that prevent the system to be operated at an optimal efficiency and to be widely implemented. Key challenges are (1) to maintain thermal comfort when sudden and significant changes in heating or cooling loads appear, (2) to maintain the thermal balance of the ground, (3) to design and control the system optimally, and (4) to decrease investment, design and commissioning costs. In the hybridGEOTABS H2020 project, three solutions are proposed and developed to tackle these challenges: (1) to integrate GEOTABS with secondary emission and heating/cooling generation systems, (2) to develop a robust and adaptive model predictive control and a toolchain that allows to derive the model architecture and parameters semi-automatically, and (3) to develop a holistic and easy-to-use design procedure that allows optimal integration, sizing and controlling of GEOTABS and secondary systems while avoiding case-bycase simulation work. This integrated solution will allow a near-optimal design and energy-efficient operation of hybridGEOTABS buildings within the boundaries of good thermal comfort and economic feasibility.
Keywords
European Union (EU), Horizon 2020, hybridGEOTABS, GEOTABS, design, SWOT

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Citation

Please use this url to cite or link to this publication:

Chicago
Himpe, Eline, Michel Vercautere, Wim Boydens, Lieve Helsen, and Jelle Laverge. 2018. “GEOTABS Concept and Design : State-of-the-art, Challenges and Solutions.” In Proceedings of the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC Brussels, Belgium.
APA
Himpe, Eline, Vercautere, M., Boydens, W., Helsen, L., & Laverge, J. (2018). GEOTABS concept and design : state-of-the-art, challenges and solutions. Proceedings of the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC . Presented at the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC, Brussels, Belgium.
Vancouver
1.
Himpe E, Vercautere M, Boydens W, Helsen L, Laverge J. GEOTABS concept and design : state-of-the-art, challenges and solutions. Proceedings of the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC . Brussels, Belgium; 2018.
MLA
Himpe, Eline, Michel Vercautere, Wim Boydens, et al. “GEOTABS Concept and Design : State-of-the-art, Challenges and Solutions.” Proceedings of the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC . Brussels, Belgium, 2018. Print.
@inproceedings{8565219,
  abstract     = {GEOTABS refers to the combination of a geothermal heat pump with thermally activated building systems, and is applied in low temperature heating and high temperature cooling of buildings. TABS is a radiant heating and cooling system and is beneficial in terms of thermal comfort and energy efficiency. When combined with a geothermal heat pump, it allows to make efficient use of low grade renewable energy sources. In this paper the benefits and opportunities of GEOTABS are explained. From current practice challenges are identified that prevent the system to be operated at an optimal efficiency and to be widely implemented. Key challenges are (1) to maintain thermal comfort when sudden and significant changes in heating or cooling loads appear, (2) to maintain the thermal balance of the ground, (3) to design and control the system optimally, and (4) to decrease investment, design and commissioning costs. In the hybridGEOTABS H2020 project, three solutions are proposed and developed to tackle these challenges: (1) to integrate GEOTABS with secondary emission and heating/cooling generation systems, (2) to develop a robust and adaptive model predictive control and a toolchain that allows to derive the model architecture and parameters semi-automatically, and (3) to develop a holistic and easy-to-use design procedure that allows optimal integration, sizing and controlling of GEOTABS and secondary systems while avoiding case-bycase simulation work. This integrated solution will allow a near-optimal design and energy-efficient operation of hybridGEOTABS buildings within the boundaries of good thermal comfort and economic feasibility. },
  author       = {Himpe, Eline and Vercautere, Michel and Boydens, Wim and Helsen, Lieve  and Laverge, Jelle},
  booktitle    = {Proceedings of the REHVA Annual Meeting Conference Low Carbon Technologies in HVAC },
  keyword      = {European Union (EU),Horizon 2020,hybridGEOTABS,GEOTABS,design,SWOT},
  language     = {eng},
  location     = {Brussels},
  pages        = {8},
  title        = {GEOTABS concept and design : state-of-the-art, challenges and solutions},
  url          = {https://www.rehvam2018atic.eu/images/workshops/6/Himpe.pdf},
  year         = {2018},
}