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Demand Controlled Ventilation and Energy Savings
- 2. Conventional Ventilation Ventilation is typically based on: • Maximum occupancy (worst-case scenario) • Constant intake of fresh air (even if unoccupied) Image: sixninepixels / FreeDigitalPhotos.net
- 3. The Result • Significant waste of energy and money • Excess running of fans • Excess heating of cold intake air • Excess cooling of warm intake air
- 4. Demand-Controlled Ventilation (DCV) Outside Air Adjust fresh-air 90% Occupied intake based on Floor 4 occupancy 10% Occupied Floor 3 Ventilation demand 50% Occupied Floor 2 is determined by CO2 level (ppm) 80% Occupied Floor 1
- 5. DCV Benefits • Maintain acceptable indoor air quality (IAQ) • Reduce energy consumption • Monitor space occupancy • Meet ASHRAE standards • Support LEED certification
- 6. Powercast Wireless CO2 Sensors • Fast installation / Easy relocation • Reduced occupant disruption • Long battery life (3-15 years) • 0 - 5000ppm measurement • Connect to any BAS network
- 7. Powercast Sensor System Building Wireless CO2 Network Sensors Local Monitoring Wireless Gateway Cloud Monitoring
- 8. Payback Payback = System Cost Period Monthly Energy Savings • Measured in months, not years • Timeframe supported by US DoE studies
- 9. Where to Use? • Office buildings • Theaters, Auditoriums • Shopping malls, retail complex • Hospitals, Hotels, Schools, Dormitories • Government buildings • Bars, nightclubs, entertainment venues • Many other places of human occupancy
- 10. More Information PowercastSensors.com +1 724.238.3700