Tapping your foot anxiously, you glance at your airline ticket and the terminal noted on it. The flight will be boarding in a few minutes. As you look around, there are several other people waiting for this flight; it seems the plane is fully booked. You close your eyes and breathe in deeply, calming your nerves. The air seems fresh, not stagnant, despite the large number of people around you. There are no empty seats in the area, so you carefully find a window to lean against as you watch the airplanes of other terminals and wait for your own.
Airports must provide a controlled environment for their visitors, while allowing scheduled maintenance within a building that is operational 24/7. Additionally, they must offer a high level of security for their passengers, all while simultaneously moving those travelers and their luggage rapidly through the building, in a finite amount of time.
Generally, airports are large complex buildings divided into numerous areas, with a number of smaller units located within them. Building automation systems (BAS) are used within airports to monitor and control sensors for things like filters, temperature, air flow, and building energy usage.
Partially or completely closed school facilitieshave 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”
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”