Partially or completely closed school facilities have been the reality of many school corporations and families across the country since we were struck by the COVID-19 pandemic. It has effectively targeted our preparedness; changing how we view building’s HVAC systems, indoor air quality (IAQ), and even how parents and teachers view which schools are the safest, best institutions for themselves and their families. Continue reading “During the Pandemic: A Study of School Air Management”
Dwyer® products are used to monitor and improve parameters that make up indoor air quality (IAQ) such as building pressure, temperature, humidity, carbon dioxide (CO2), and volatile organic compounds. This is particularly important for areas like schools, where students and teaching staff will be present for long periods of time. Our products are used in all areas of the building, including classrooms, gymnasiums, auditoriums, and nurse offices. Continue reading “Ensuring Comfortable, Safe Environments in Schools”
The velocity of an air stream in a duct is not uniform over the cross section of the duct. This is because friction against duct walls causes the air velocity to be lower near the sides than the velocity in the center, creating a parabolic velocity profile. Continue reading “Duct Traversing for Average Air Velocity and Air Volume”
Dwyer Instruments offers a multitude of sensors for monitoring air velocity in HVAC systems. Some of this instrumentation has a simple construction (Pitot tubes, for example) while others are more complex, such as hot-wire anemometers.
The initial term and first “hot-wire anemometer” was developed back in 1914 by Louie Vesso King. He is also accredited for King’s Law, which mathematically describes heat transfer in air flows using a heated wire. As the air moves over the wire, it causes a loss of temperature in the wire and removes some of the wire’s heat energy. Continue reading “The Basics of Air Velocity Sensors”
The Dwyer team recently released the Series MSX Pro Magnesense® Differential Pressure Transmitter, which meets stringent industry standards with innovative global product design. This series is ideal for monitoring building control applications, and also utilizes enhanced accuracy and stability for use in high performance, critical environments. Continue reading “Product Highlight: Series MSX Pro Magnesense® Differential Pressure Transmitter”