CLOSURE GEOTABS SMART GEOTHERM

Transcription

1 CLOSURE GEOTABS SMART GEOTHERM Symposium, Infrax building, Dilbeek November 14, 2013 Lieve Helsen University of Leuven (KU Leuven), Belgium Department Mechanical Engineering

2 NZEB by 2020 Increasing importance of: heat pumps GEO-HP: high energetic performance direct cooling seasonal energy storage energy storage TABS, Ground, Building, Storage Tanks... GEOTABS is concept with huge potential

3 SYSTEM PERFORMANCE High performance by integrated design and control For building with installation, control and users COMBINED evaluation of: o Energy use o Comfort o Long term performance (sustainable operation) HOLISTIC approach of global system Integrated over all phases: study - design - products - construction - commissioning - operation/control - policy

4 DIFFERENT WORLDS MEET Different disciplines: mechanical, civil, architectural, electrical, control, material, geological engineering... Different stakeholders: architects, building contractors, drillers, engineering offices, consultants, HVAC installers, HP, TABS and control companies, energy agencies, scientific researchers, teachers, students, users Different countries: Belgium (Flanders and Walloon), Germany, The Netherlands, Denmark, Czech republic ADDED VALUE! Learn from each other s expertise, experience, context

5 COOLING: A TABOO? Not in all countries! GLOBAL picture counts, combining all energy services evaluated over a whole year and over the global system o Interaction building installation controller user o Heating, cooling, ventilation, comfort and ground balance o Direct cooling (high COP!) versus active cooling o Balance heat/cold demand influences ground thermal balance building design as degree of freedom? Look for the GLOBAL OPTIMUM

6 DYNAMIC SIMULATION GEOTABS building asks for dynamic simulation TABS, building and ground: large thermal capacity, slowly reacting, most of the time not in steady-state Combination of slow and fast reacting systems Detailed dynamic simulation: feasible for each building in design phase? How far should we go? From detailed emulator models to reduced controller models

7 DYNAMIC SIMULATION IEA-EBC-Annex 60 New generation computational tools for building and community energy systems based on the Modelica and Functional Mockup Interface standards Coordinated by Lawrence Berkeley National Lab, RWTH Aachen, TU Eindhoven

8 USER BEHAVIOUR Gap simulated - measured performance (FP7 call) Highly influences global system performance Stochastic behaviour, uncertainties Models needed (predictable, variable)

9 PERFORMANCE MEASUREMENT To measure is to know Importance of demonstration cases Detailed monitoring Sensors Figures good practice Fault detection Feedback to design phase Comfort surveys Source: Solarwind Studiebureau Boydens

10 DESIGN AND CONTROL DESIGN AND CONTROL GO HAND IN HAND Optimal Control o o MPC Challenge identification controller model Uncertainties Potential! Learn from MPC Optimal Design o o Sizing highly sensitive to control strategy Role of backup system, direct/active cooling, AHU

11 WEBSITES

12 GEOTABS...

13 SMART GEOTHERM

14 WE GO ON... FWO project Model base Predictive Control (MPC) of Ground Coupled Heat Pumps PerformancePlus project (FP7- ENERGY ) Tools for Enhanced Photovoltaic System Performance: Integrated Energy Management and Storage Control IEA-EBC-Annex 60 New generation computational tools for building and community energy systems based on the Modelica and Functional Mockup Interface standards

15 WE GO ON... Proposal PhD Fellowship Integrated optimal design and control of office building systems using renewable energy sources Proposal KU Leuven-IOF project SoC of CCA State-of- Charge of Concrete Core Activation Proposal EIT-KIC project Innovative CCA product with integrated pipe networks and controller...

16 FUTURE SMART GEOTHERM

17 THANK YOU ALL... attendence SPEAKERS and MODERATORS... contribution PROJECT PARTNERS... nice collaboration WTCB/BBRI... perfect organization Studiebureau Boydens... infrastructure and dynamics LET S VISIT THIS GEOTABS BUILDING NOW AND GET-TOGETHER AFTERWARDS