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hybridGEOTABS first newsletter (March 2017)

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hybridGEOTABS newsletter (first page)


hybridGEOTABS first newsletter contains a short introduction to the technology and objectives of this Horizon 2020 research project. It also gives a summary of progress as shared at the recent project meeting in Finland; in particular, the chosen demo buildings and technical developments.


hybridGEOTABS is an active research project to optimise the predesign and operation of a hybrid combination of geothermal heat pumps (GEO-HP) and thermally activated building systems (TABS). It will design an improved, automated ‘Model Predictive Control’ (MPC) solution for testing on hybrid supply and emission systems in demonstration buildings such as offices, elderly care homes, schools and apartment blocks. Applying MPC to hybrid GEOTABS optimises the performance and efficiency, making it more economically attractive and increasing take up.


GEOTABS is an innovative clean technology for energy efficient and healthy buildings combining thermally activated building system (TABS), a ground heat exchanger and heat pump in between both systems (GEOTABS). The radiant heating and cooling system has proven to be one of the most comfortable ways to condition indoor spaces, especially multi-storey offices.


The project objectives are the following:


  • Improve the efficiency of heating and cooling of a hybrid MPC GEOTABS system by 25% compared to the existing best practice
  • Develop a method of choosing appropriate components for hybrid MPC GEOTABS solutions to achieve optimal performance and offer grid flexibility through demand-response
  • Develop a Smart Grid-ready automated control system based on MPC and provide this as an open source solution
  • Establish a trade body or association to promote the hybrid GEOTABS concept and best practices
  • Validate the technology and approach on a virtual validation test-bed and on at least three real, high-visibility buildings

Technical developments within the project include:


  •  A design method for the control of hybrid systems has been developed which will lead to the development of an 'automated splitting algorithm' to determine baseload versus secondary loads for heat demand.
  •  Four typologies are being developed to determine load curves for schools, offices, residential and care homes across Europe.
  •  A semi-automated MPC toolchain is being created - using a white box approach based on Modelica & IDEAS library.


The full newsletter is available at the link below.


See also the relevant BUILD UP News.