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Welcome to the hybridGEOTABS March 2017 newsletter
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Welcome to the hybridGEOTABS March 2017 newsletter

Our first newsletter contains a short introduction to the technology and objectives of the research project. We also give a summary of progress and developments as shared at our recent project meeting in Finland.


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.
Project progress

On 1-2 March the project team met in Vantaa, Finland, hosted by Uponor. We shared our progress and plans, and enjoyed a lovely meal out where we got to know each other a bit better. In brief, developments include:

Three demonstration and two case study buildings have been chosen:

 
Demo buildings are equipped with a GEOTABS system and will be used to experiment, monitor and demonstrate the systems developed in the project (eg the MPC controls):
 
Solarwind office, Luxembourg: 120kWth GSHP system (see caption)
Ter Potterie care home, Belgium: 186kWth GSHP system
Libeznice school, Czech republic: 55kWth (heating mode), 65kWth (cooling mode) GSHP system

Case-study buildings are equipped with a system similar to GEOTABS and provide additional information and monitoring:
 
Haus M residential, Switzerland: 75kWth geothermal HP system with underfloor heating
Infrax office, Belgium: 2x geothermal HP (70kWth each)

Technical developments:

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
Project objectives

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
GEOTABS can be used with a wide spectrum of design, operation and applied control strategies. For example, Solarwind is at the forefront of sustainable construction in Luxembourg, with the building envelope, solar orientation, materials and triple glazing designed for energy efficiency. Heating and cooling is delivered via concrete core activation, coupled with heat pumps in the winter and passive cooling in the summer, optimising energy use and reducing maintenance costs. Other renewable energy sources include urban wind turbines, solar photovoltaic & thermal, and biomass wood pellets for hot water production.
hybridGEOTABS brings together a transdisciplinary team of SMEs, large industry and research institutes, experienced in research and application of design and control systems in the combined building and energy world.
What are GEOTABS?
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.

Get involved
We are an active new network for hybridGEOTABS developers, engineers & academics with a common interest in optimising coupled geothermal heat pumps (GEO-HP) and thermally activated building systems (TABS) - alongside secondary heating & cooling systems. Please join the conversation through our social media channels.
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Funded by the European Commission under the Horizon 2020 Programme: project number 723649 (proposal name “MPC-;GT”)
Copyright © 2017 hybridGEOTABS, All rights reserved.


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