Measurement and Control of Ventilation Rates in Commercial Buildings in California
Advancing the science and technology needed to better control minimum air ventilation rates in California's commercial buildings
Lawrence Berkeley National Laboratory
Recipient
Berkeley, CA
Recipient Location
9th
Senate District
14th
Assembly District
$750,000
Amount Spent
Completed
Project Status
Project Result
The research team modeled different demand control ventilation (DCV) strategies that varied minimum ventilation rates and found similar energy savings between the types of DCV strategies applied. While the central estimates of ventilation rates agree reasonably well with respect to the reference values, researchers found large errors resulting from data uncertainties and assumptions. Testing two commercially available outdoor airflow measurement technologies, the researchers found substantial measurement errors under challenging conditions (e.g., high wind). [br /]
Improvements in technologies that measure ventilation rate and outdoor airflow rates are needed.
The Issue
Minimum ventilation rates in commercial buildings affect health, work and school performance, and energy consumption. In addition, minimum ventilation rates are often poorly controlled, and energy is wasted in some buildings that have excess ventilation. Indoor air quality, health, and work performance are substandard in buildings with insufficient ventilation.
Project Innovation
This project uses modeling to analyze peak energy demand and indoor air quality advantages of controlled minimum ventilation rates (VR); evaluates multiple technologies applicable to real-time measurement and control of ventilation rates; and uses the results to develop occupancy specific guidelines for using carbon dioxide (CO2) sensors in demand controlled ventilation systems and for measurement of ventilation rates.
Project Goals
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Project Benefits
The project developed methods for improved measurement and control of VRs in buildings. Better control systems for VRs can avoid excessive ventilation that wastes energy and increases energy costs, as well as insufficient ventilation that increases adverse health effects and decreases school and work performance.
Meet the Team
Connect with the project team members that are helping California lead clean energy innovation.
Key Project Members
William Fisk
Subrecipients
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