Darryl DeAngelis
Number Of Publications
11 articles
Achieving Demand Control Ventilation Based on Occupancy
At South Lafourche High School and Thibodaux Middle School in Louisiana, fluctuating occupancy levels—particularly in classrooms and gymnasiums—highlighted the need for a […]
Equivalent Clean Airflow and the Importance of Validating Ventilation and Filtration Rates
ASHRAE Standard 241 introduces the concept of Equivalent Clean Airflow — a framework for combining mechanical ventilation, filtration, and other proven technologies […]
Making Healthier Buildings
Ventilation and filtration are foundational principles in healthy buildings. FMs are often burdened with reducing operating costs, and a prime target is […]
Meeting Ventilation Requirements, Achieving IAQ and Operational Efficiency
Claremore Indian Hospital recently upgraded its HVAC systems to significantly enhance indoor air quality (IAQ) and energy efficiency, ensuring optimal airflow and […]
Using CO2 Sensors for Indoor Air Quality and Energy Savings
Carbon dioxide has been utilized as a metric for indoor air quality and as an energy-saving strategy through demand control ventilation (DCV). […]
Ventilation for Health and ASHRAE Standard 241-2023
Listen to this presentation on ASHRAE Standard 241-2023, discussing ventilation for healthy buildings. We will explore the historical context of why we […]
Exploring Integration Opportunities with Airflow Measurement Stations
Thermal dispersion airflow measurement stations with BACnet communication protocols address the industry’s need for data integration and operational transparency. Advanced BAS systems […]
Make Buildings Healthy
A New Approach to Healthy Buildings! ASHRAE Standard 241 was released. The guide to creating infection-resilient buildings! Learn how this standard empowers […]
Wildfires have Increased Advocacy for Better Indoor Air Quality and Building Codes
Many individuals seek guidance on indoor air quality after the recent wildfires. A plan to ensure proper ventilation and indoor air quality […]
The Importance of Controlled Ventilation in Schools
Proper outdoor air ventilation in schools is crucial for occupant health and well-being. Ventilation rates can vary due to factors like the […]