Sunday, January 5, 2014

Outdoor Temperature and Relative Humidity - US Winter and Summer Conditions

See in below : Outdoor design temperature and relative humidity in US states and cities - summer and winter


Monday, January 21, 2013

Air - Altitude, Density and Specific Volume


The density and the specific volume of air varies with the elevation above sea level

ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers


ASHRAE Standards

Sunday, January 20, 2013

Humidifying Air with Steam - SI units

The table below can be used to estimate the amount of vapor in 100 mair volume.

Calculating Indoor Temperature and Humidity Loads

Calculating sensible and latent heat from persons, lights, electric equipment, machines, evaporation from water surfaces, polluting fluids and miscellaneous loads