(Scientific research manager Vabi Software)

Transcription

1 Ir. Wim Plokker (Scientific research manager Vabi Software)

2 Vabi Software Introduction Performance Assessment Dutch design practice Projects Vision Demonstration

3 Vabi Software Vabi. Kennis vertaald in software. De kracht van Vabi: Het vertalen van onze kennis in software voor gebruikers die optimaal presterende gebouwen willen combineren met optimale bedrijfsresultaten.

4 History of Vabi 1972 Association +10 Large consultancy firms

5 History of Vabi 1977 first overheating risk assessment program Together with air duct programs.

6 History of Vabi 1984 First PC version

7 History of Vabi 1999 Integrated Environment Berekeningen

8 History of Vabi 1972 Association 1977 first overheating risk assessment program running Together with piping programs First PC version 1999 Integrated Environment 2005 Association to LTD 2006 EPBD software on a PDA 2011 Intelligente 3D design environment Vabi Elements 2011 Label data survey on tablet PC

9 Introduction Vabi From 1 application and 1 staff to: 28 staff 30 applications 2000 unique customers Installer round the corner Large engineering companies Housing corporations / EPBD Energy label consultants

10 Introduction Vabi Involvement in (inter)national standardisation and research projects (IEA,EU,CEN and ISO) Strategic alliances with Ministry of housing, ISSO, SenterNovem and TNO. Stimulate and fund research at TU/e

11 Introduction Vabi Calculation modules Residential / non-residential Buildings and Systems Pipes and Ducts Electrical Systems Solar Energy Labeling software

12 Different design stages D PoR PD FD C Use

13 Vabi als softwarebedrijf Gebouw Stroming Gebouw Stroming EPA-U EPA-W Energie Beleidssimulatie

14 Warmteverlies schil Warmteverlies detail Koellast schil Koellast detail Temperatuur Overschrijding Betonkernactivering Optimale stooklijnen Productiviteit Gebouw Gebouwsimulatie Elements Stroming Energie Leidingnet Tapwater Luchtkanalen Gasleiding Hemel- en vuilwaterafvoer.. EPG bestaande woning EPG nieuwbouw woning EPG bestaande utiliteitsbouw EPG nieuwbouw utiliteitsbouw..

15 Introduction Vabi Calculation modules Physics / first principle International Standards National Standards BESTEST / ASHRAE 140

16 Performances Requirements / role principal (cost/quality) Requirements /role architect System consultant (image, technique) Equipment design-process systems and building (dimensioning, control-strategy)

17 Performances Energy Energy Label kwh Electricity m 3 Gas Peak capacity / Year duration loads Balance between heating and cooling demand CO 2 emission [kg] Comfort????? Productivity?????

18 Performance Comfort Translation of a feeling in an actual testable performance Counting of hours above 25 / 28 C PMV / PPD EN ISO 7730 CEN EPBD WI 31/EN Adaptive thresholds values...

19 Performance PMV ISO 7730 PMV = (0,303e-2,100*M + 0,028)*[58,15*(M-W) Predicted Mean Vote Air temperature Radiation Humidity Air velocity Metabolism (effort) Clothing -3,05*10-3*[ ,7*(M-W)-pa]- 24,21*[(M-W)-1] -10-3*M*(5867-pa)-0,0814*M*(34-ta) -3,96*10-8*fcl*[(tcl+273)4 - (teq+273) 4] - fcl*hc,eq*(tcl-teq)]

20 Thermal performance CEN WI 31 Criteria for the Indoor Environment including thermal, indoor air quality, light and noise ATG Ti (ºC) Te,ref (ºC) Period: Utilization period only Temperature: Comfort temperature Type of building: Alpha Undercooling: Class A: 90% 1331 Class B: 80% 59 Class C: 65% 20 Overheating: EN 15251

21 Simulation of performances Simulation For comfort assessment the (computer)model has to provide the following information: For every hour Air temperature Surface temperatures Humidity (air velocity)

22 Evolution of thermal performance in the Netherlands 1972 Start of Vabi 80 s Count hours > 25 C, 28 C» Limit 100 and 15 hours 90 s PMV > 0.5 weighting» Limit 150 hours 05 Adaptive thresholds» Function of running mean outdoor temperature» Function of the possibility of the user to control the climate Ti (ºC) Te,ref (ºC) Period: Utilization period only Temperature: Comfort temperature Type of building: Alpha Undercooling: Class A: 90% 1331 Class B: 80% 59 Class C: 65% 20 Overheating:

23 Thermal performance in the Netherlands Current situation 150 copies of the building simulation program. +/- 600 users use it in daily practice For almost all new office overheating risk is assessed. High quality residential building are also assessed

24 Productivity Performance Short sick leave versus ventilation rate per person (Rehva guideline no 6 fig 12) 1.0 Sick Leave relative to with no ventilation Ventilation rate (l/s per person) Milton-offices Relative Productivity versus indoor air temperature (rehva guidebook no 6 fig 20) Relative Productivity (%) Indoor air temperature ( C)

25 Productivity Productivity loss over a day Annual cost per m 2 office 16 Productivity loss (%) Hour of the day (h) short seak leave Productivity Ventilation Productivity Temperature Productivity - Total 3000 Euro Personnel 300 Euro Rent 30 Euro Energy costs 3 Euro 10% Energy savings

26 Results

27 Results Temperature ºC Energy (W) Outside temperature Air temperature Comfort temperature Air supply temperature Local cooling Cooling centraal Local heating Heating central Insolation Internal heating load Time (hours)

28 Results Ti (ºC) Te,ref (ºC) Period: Utilization period only Temperature: Comfort temperature Type of building: Alpha Overheating: Class A: 90% 244 Class B: 80% 27 Class C: 65% 4 Undercooling: 3 1 0

29 Results Total heating: Total cooling: Total waste of energy: 105 kwh 566 kwh 34 kwh 1500 Energy (W) Heating Cooling Simultaneous heating and cooling Toutside (ºC)

30 Demonstration

31 Hoftoren Projects Hoftoren The Hague

32 Projects SHELL New Technology Centre Amsterdam

33 Vision Use Modern Simple Overview Navigation Visualisation Feedback Level of detail Optimisation Process Sketch-, Final-, Specification-and maintenance-phase Integration with CAD/BIM/Revit Integration with MS Office Integration with ERP, DMS, CRM Themes Energy and CO 2 Comfort Health Investment Maintenance costs Energy costs (Total cost of ownership)

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35 Opbouw Vabi Elements

36 Opbouw Vabi Elements

37 Installatieconcept Hulpmiddelen Ruimtesjabloon Geometrie

38 Systeemconcept

39 Toewijzen sjablonen aan gebouwen

40 Toewijzen sjablonen aan ruimten

41 Begrenzingen Overschrijven

42 Dashboard

43 Resultaten Warmteverlies

44 Gebouwsimulatie: ATG-grafiek

45 Gebouwsimulatie: Temperaturen

46 Gebouwsimulatie: Behoefteprofiel

47 Gebouwsimulatie: Productiviteit

48 Vabi Software