Arkansas HVACR NewsMagazine May 2026

HVACR NewsMagazine May 2026

Tech News

So we can see that if this 75°F (23.88°C) dry bulb and 50% relative humidity mass of air comes in contact with a surface that is 55.5°F (13.05°C) or less, it will begin to condense water. We also know that this airstream contains 65 grains of moisture per lb of air. Forgive me for saying so, but I think this is pretty cool.

P.S. – If you want a good quality Psychrometric chart, you can use THIS ONE. P.P.S. – If you want to learn more about the LEFT side of the chart, you can read our tech tip about wet-bulb temperature and enthalpy on the psychrometric chart.

— Bryan

This article was furnished by the generosity of Bryan Orr, HVAC School by Techs for Techs. We encourage you to subscribe to their podcast and articles at https://hvacrschool.com/