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hybridGEOTABS WSED 2019 workshop hybridGEOTABS will provide a Workshop at the European Energy Efficiency Conference 2019 on 28 February from 14:00 to 16:30, during the World Sustainable Energy Days 27 Feb - 1 Mar 2019 in Wels, Austria.   Register here to join our workshop “Geothermal heat pumps and thermally activated buildings”  on 28 February from 1400-1630   ABOUT THE EUROPEAN ENERGY EFFICIENCY CONFERENCE   Energy efficiency first is the motto of the next European Energy Efficiency Conference Take a look at the programme: www.wsed.at   Value for your time In 2 days, the event offers delegates: 5 dedicated conferences, including the Energy Efficiency Policy Conference, Industrial Energy Efficiency Conference and Smart E-Mobility Conference technical visits to innovative energy efficiency projects a major tradeshow on building efficiency and renewable energy with more than 100,000 visitors and 1,600 exhibiting companies new business opportunities and valuable networking possibilities   WHAT is the European Energy Efficiency Conference? The Clean Energy Package is changing Europe‘s energy markets. "Energy efficiency first" is at the core of Europe’s commitment to a clean energy transition. This requires strong policies, competitive businesses, technology innovation and investments. The European Energy Efficiency Conference addresses policies, innovation and business in specialised conferences and interactive events. It connects people from business, the public sector and research and empowers them to embrace the change.     WHO attends the event?  Over 400 experts each year from more than 50 countries including: A wide range of business actors engaged in the energy transition: technology and equipment companies, energy companies, service providers, planners, developers, financing sector etc. the energy efficiency research community representatives from public bodies (e.g. EU institutions, national, regional and local governments, energy agencies)   WHEN and WHERE does it take place? 27 Feb – 1 Mar 2019 in Wels, Austria. The region of Upper Austria is an ideal location for this conference: Through significant increases in energy efficiency and renewable energy, greenhouse gas emissions from buildings have been reduced by 43 % in 10 years. Over 60 % of all space heating and 31 % of the primary energy in Upper Austria already come from renewables.   Come take advantage of this comprehensive package wrapped in Austrian hospitality! The event is organised by the Energy Agency of Upper Austria, OÖ Energiesparverband   For more details and information on conference fees, visit the conference website www.wsed.at The conference office is at your disposal for further questions T: +43-732-7720-14386, office@esv.or.at   We look forward to welcoming you to the European Energy Efficiency Conference 2019!

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Consortium members, Filip Jorissen, Wim Boydens & Lieve Helsen have recently published a paper on TACO, an automated toolchain for model predictive control of building systems: implementation and verification, in the Journal of Building Performance Simulation TACO will be further developed and demonstrated during the coming years with the goal to significantly reduce the engineering effort required for developing MPC for building applications. This can be read here: https://www.tandfonline.com/doi/full/10.1080/19401493.2018.1498537    

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hybridGEOTABS will be hosting a workshop at CLIMA2019 26-29 May in Bucharest, Romania, targeting HVAC designers and engineering students. At present, the exact date and time of the workshop and training is to be confirmed...between 27-29 May - watch this space for more info when scheduled! CLIMA 2019 continues with the longstanding tradition to offer several practical, interactive workshops beside the plenary paper sessions. The workshops are organised by REHVA and its international sister associations, European research and innovation projects, as well as REHVA supporter companies representing leading HVAC manufactures and service providers. We are happy to announce the first set of interesting workshops awaiting our CLIMA 2019 participants. hybridGEOTABS integration of GEOTABS (Geothermal heat pumps in combination with Thermally Activated Building Systems) with secondary heating and cooling systems offers huge potential to meet heating and cooling needs throughout Europe in a sustainable way, while providing a very comfortable conditioning of the indoor space. In this workshop, the effects of radiant heating and cooling systems on Indoor Environmental Quality are discussed, as well as the design of hybridGEOTABS buildings. In the first part of the workshop, the benefits of TABS for the IEQ in buildings are highlighted. Because TABS is most easy to apply in new buildings, a newly developed solution for existing buildings (renovation) is introduced, which is a radiant heating and cooling system with high thermal inertia (using Phase Change Materials). The second part of the workshop starts from the challenge of optimal sizing of both the GEOTABS and secondary heating/cooling system in hybridGEOTABS buildings, controlled by use of Model Predictive Control. Starting from the state-of-the-art design processes, the ongoing R&D towards a new design procedure allowing optimal integration and sizing of hybridGEOTABS, is explained. These developments will lead to a holistic and easy-to-use design procedure for feasibility studies and predesign, avoiding case-by-case simulation work.

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We've been busy with our MPC Workshop, Case Study Visits and planning further Workshops in 2019. Read our November Newsletter and find out more... https://mailchi.mp/e187b838bdae/hybridgeotabs-nov-2018-newsletter-638991    

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Rana Mahmoud and Mohsen Sharifi from University of Ghent introduce a planned design methodology for sizing GEOTABS and secondary energy sources. Ongoing development of an easy-to-use hybridGEOTABS design methodology The design of hybridGEOTABS requires the sizing of both the GEOTABS and the secondary energy sources consuming and expensive – especially in feasibility stage, or rule of thumb by experienced designers, that are not validated for a wider range of typologies and climates throughout Europe. So, this project is providing a design methodology for making the hybridGEOTABS design process more accessible to building HVAC designers, and more economically feasible. In the process of developing this design methodology, we are developing an automated methodology to (1) calculate dynamic heat demand of buildings starting from general building data and (2) size the main hybridGEOTABS components using these heat demand curves. This automated process will be used to assess the sizing of numerous cases representing the EU building stock, since the whole process is automated. Easy-to-use design guidelines will then be derived from the analysis and meta-analysis of the obtained sizes for a variety of buildings and climates, taking into account the effects of optimized control. 1: To calculate heating and cooling demand curves starting from building stock data: The building stock data contains general information about the building, similar to the data that are available for system designers in the design stages (e.g. building volume, gross floor area, U-values…). We developed a methodology that allows obtaining building energy simulation models in an automated way starting from general building information data. These data were gathered from a whole population of building stock data. An essential part in this modelling process is using a model of multi-zone archetype building that is adapted to the investigated typology (the typologies of focus in this research are offices, schools, elderly homes and multi-family buildings). Each of these archetypes is fitted to the building stock data of the individual cases. The output of this process is dynamic heating and cooling demand and load duration curves. 2: To size main hybridGEOTABS components: On the other hand, a methodology to size main hybridGEOTABS components is developed that starts from the heat demand curves, calculated in previous part of research. The idea of this methodology is that the heating and cooling ‘baseload’ is covered by the GEOTABS, and the residual loads by the secondary system. By definition, the baseload is considered the maximum load that the TABS can provide (being a system with high thermal inertia), without wasting energy (as a result of a quick changing between heating and cooling). An algorithm is developed that allows to split the heating and cooling load curves from step (1) into a baseload and residual load, thus to size the secondary system from the maximum residual loads that appear. The figure above shows how the two parts of this research interact: the black curve is a heat demand curve which is output of the first part of the research. The red curve is the power of GEOTABS which is the output of the second part of the research. The blue region is the share of the secondary system.

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Filip Jorissen, PhD and Post-Doc at KU Leuven, key member of hybridGEOTABS project consortium, presented Model Predictive Control (MPC) algorithms applied to hybridGEOTABS buildings at the REHVA Brussels Conference, Smart Buildings for Smart Users - Implementing the new EPBD, on 13th November 2018. MPC can answer to the control challenges posed by smart buildings, where technical building systems have to interact and integrate towards an optimal management of energy use and comfort conditions. Filip focused on the potential of a white box approach to MPC: the MPC Toolchain currently being developed at KU Leuven will allow a user-friendly set up of MPC algorithms based on building schematics information. Dr. Jorissen then presented the application of these strategies to one of our case study buildings, Solarwind, where simulation results showed an energy saving potential of MPC of 0ver 50% with respect to traditional rule-based control. MPC shall replace the existing control system in another of our case study buildings, Infrax, and this will now be measured for anticipated energy savings.  

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