Psychometrics Flashcards
(11 cards)
What is psychometric
Study of thermodynamic properties of air
Dry Bulb Temp
DB, F, Regular temperature
Wet bulb temperature
WB,F, temp you experience getting out of the pool
Humidity Ratio
w, lbw/lba, moisture, water vapor:dry air
Relative Humidity
%, how full the air is with water (100% is soaked)
Enthalpy
h, total heat (energy) in the air, btu/lba
Dew Point (saturation temperature)
When air gets too cold to hold water (F)
Specific Volume
How much space air takes up, ft^3/lba
Difference between sensible and latent energy?
Sensible - energy required to change temperature
Latent - energy required to change phase
When does condensation occur?
Tcooled water > Tair
Do heating coils have latent heat transfer?
No