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Department of Flow, Heat and Combustion Mechanics – FloHeaCom.UGent.be

Ontwikkelingen in de installatietechniek voor nZEB-gebouwen M. De Paepe Onderzoeksgroep Technische Thermodynamica en Warmteoverdracht. Department of Flow, Heat and Combustion Mechanics – www.FloHeaCom.UGent.be Ghent University– UGent. Europese doelstellingen.

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Department of Flow, Heat and Combustion Mechanics – FloHeaCom.UGent.be

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  1. Ontwikkelingen in de installatietechniekvoornZEB-gebouwenM. De PaepeOnderzoeksgroepTechnischeThermodynamica en Warmteoverdracht Department of Flow, Heat and Combustion Mechanics – www.FloHeaCom.UGent.be Ghent University– UGent

  2. Europese doelstellingen • In 2002,  Energy Performance of Buildings Directive (EPBD), which set minimum efficiency standards for both residential and commercial buildings. • 17 November 2009 : EPBD recast “ ... all new buildings would have to comply with tough energy-performance standards and supply a significant share of their energy requirements from renewables source after 2020.” …. • Goedkeuring in het EP: 18 May 2010 ” …nearly zero - energy buildings “

  3. Near Zero energy Buildings 2015 : alle nieuwbouw in Brussel passief ; 2020 bijna nul energie 2017 : alle nieuwbouwwoningen in Wallonië “bijna nul energie” woningen 2020 : alle nieuwbouwwoningen in Vlaanderen “bijna nul energie” woningenOok bestaande woningen zullen aan een aantal voorwaarden moeten voldoen

  4. Definitie • International Energy Agency, Annex 40 : Towards N-ZEB : • Vijf randvoorwaarden voor de definitie : • (1) boundary conditions • (2) weighting system. • (3) the net zero balance • (4) the temporal energy match • (5) the monitoring procedure and post occupancy protocol.

  5. Break down of energy use in EU

  6. Doel van een gebouw • Comfort en productiviteit/fun • Energy nodig voor : • Verwarming en koeling • Ventilatie (elektriciteit) • Sanitair warm water • Verlichting (elektriciteit) • Toestellen : kantoor, huishouden , fun

  7. EPBD recast, energy performance is defined as (article 2): ‘energy performance of a building’ means the calculated or measured amount of energy needed to meet the energy demand associated with a typical use of the building, which includes, inter alia, energy used for heating, cooling, ventilation, hot water and lighting

  8. EPBD recastdefinition for nearly zero-energy ‘nearly zero-energy building’ means a building that has a very high energy performance, as determined in accordance with Annex I. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby numerical indicator of primary energy use expressed in kWh/m2 per year.

  9. REHVA TF nZEB taskforce net zero energy building (ZEB)Energy use of ≤ 0 kWh/(m2 a) primary energy. nearly zero energy building (nZEB)Technically and nationally reasonable achievable energy use of > 0 kWh/(m2 a) primary energy, achieved with a combination of best practice energy efficiency measures and renewable energy technologies which may or may not be cost optimal.

  10. ZEB – Energy Balance

  11. Trias Energetica

  12. Vermindering van de vraag • Doorgedreven isolatie • Muren, daken, • Ramen • Doorgedreven luchtdichting • Ventilatie met warmterecuperatie • Daglichtsturing ,… • Interne lasten verder reduceren • Zonnewering, …

  13. Zomer comfort : gevaar voor oververhitting : aarde-warmtewisselaars

  14. Energie levering - Technieken

  15. De warmtepomp

  16. Warmtepompen en PV-panelen Elektriciteit is de enige energievector

  17. Technologische variaties Ground • Verwarmen & koelen • BEO-veld : boorgat energie opslag • Energiepalen

  18. Energierecuperatie op ventilatie

  19. The Energy Box

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