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Energy and Indoor Environmental Simulation

Energy and Indoor Environmental Simulation. Contents. Introduction Vabi EPBD software Performance simulation Energy-> Co2-> PMV-> Productivity. Introduction Vabi. Association 1972, 1800 unique customers Combination of software company, knowledge centre for calculations.

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Energy and Indoor Environmental Simulation

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  1. Energy and Indoor Environmental Simulation

  2. Contents • Introduction Vabi • EPBD software • Performance simulation • Energy-> Co2-> PMV-> Productivity

  3. Introduction Vabi • Association 1972, 1800 unique customers • Combination of software company, knowledge centre for calculations. • Software for sizing installation equipment and assessing building performances • Strategic alliances with Ministry of housing, ISSO, SenterNovem and TNO.

  4. Introduction Vabi • Developed over 25 calculation engines together with TNO. • Involvement in (inter)national standardisation and research projects (IEA,EU,Cen and ISO)

  5. EPBD SoftwareEnergy Performance Assessment • Standard Certificate • Custom-made Advice • Residential • Non residential • 5.000 official certificates

  6. EPBD Software optimisation • Single dwelling • most efficient energysaving measures • Housing corporations • Database version • Building stock • Optimisation over the building stock • Policy : CO2 reduction / Label steps

  7. Performance Simulationand EPBD • (9) The measures further to improve the energy performance of buildings should take into account climatic and local conditions as well as indoor climate environment and cost-effectiveness. They should not contravene other essential requirements concerning buildings such as accessibility, prudence and the intended use of the building.

  8. Performance Simulation • Energy • Energy Label • kWh Electricity • m3 Gas • Peak capacity / Year duration loads • CO2 emission • Total cost of ownership • Comfort • PMV / Fanger • Productivity • ?????

  9. Performance Simulation Typical EPBD softwareMonthly Building Output Typical Building Performance Simulation Hourly Zonal Output

  10. Performance PMV Predicted Mean Vote • Air temperature • Radiation • Humidity • Air velocity • Metabolism (effort) • Clothing

  11. Overheating risk assessment • Comfort • Translation of a feeling in an actual assessable performance • Counting of hours above 25 / 28 °C • PMV / PPD EN ISO 7730 • CEN EPBD WI 31/EN 15251 • Adaptive thresholds values • > 90% of all office buildings are assessedin the Netherlands

  12. Thermal performance CEN WI 31 Criteria for the Indoor Environment including thermal, indoor air quality, light and noise EN 15251 ATG

  13. Productivity Performance

  14. Productivity Minimum ventilation rate Double ventilation rate

  15. Productivity

  16. Productivity • Annual cost per m2 office • 3000 Euro Personnel • 300 Euro Rent • 30 Euro Energy costs • 3 Euro 10% Energy savings

  17. Productivity

  18. Concluding Remarks • Rehva Guidebook 6“Indoor Climate and Productivity in Offices” is a big step towards Productivity as a performance indicator • Integrating Productivity in Building Performance Simulation makes a balanced trade-off between Investment / Energy performance / Productivity possible

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