#wet bulb

Tech Tips:

The Impact of Adding or Removing Water From Air
By:Bryan Orr Air conditioning was about humidity control from the very start. Willis Carrier's very first air conditioning system was all about controlling the humidity with the side effect that it also could reduce the sensible temperature. Theaters caught on that this newfangled contraption could lead to big summer numbers when they installed it to […]
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How to Reduce Indoor Humidity
By:Bryan Orr Sometimes I beat around the bush too much in these tech tips, so let's get down to the nitty-gritty! (As Nacho Libre would say.) Humidity inside a home should be maintained between 30% and 60% relative humidity. I like to shoot for 50% in humid climates when possible (and by possible, I mean […]
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Wet Bulb and Enthalpy – The Left Side of the Chart
Both wet-bulb temperature and air enthalpy are extremely useful to understand when calculating actual system capacity and human comfort. Dry-bulb temperature is a reading of the average molecular velocity of dry air. However, it does not account for the actual heat content of the air or the evaporative cooling effect of the air. When air […]
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Podcasts:

Psychrometrics Basics w/ Jamie Kitchen Podcast
By:Bryan OrrJamie Kitchen In this episode of the podcast, Jamie Kitchen from Danfoss talks about wet-bulb, dry-bulb, relative humidity, dew point, enthalpy, and latent heat. These are the building blocks of psychrometrics, which deals with human comfort as it relates to temperature, humidity, and heat loads. Humidity is water vapor in the air. As the […]
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Test Instruments Past, Present, & Future w/ Jim Bergmann
By:Jim BergmannBryan Orr In this episode, Bryan speaks with Jim Bergmann of Redfish Instruments about his path to being a test instruments business owner. He has also worked with Testo and has teaching experience under his belt. In the past, test instruments were low-resolution and often inaccurate. Many HVAC techs of the past based all […]
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