ther Flashcards
A skin load dominated building in a northern temperate climate would want a _______ SHGC south facing glass
High (0.7 - 0.9)
Internal load dominated buildings include _____
Theatre, skyscrapers, office, hospitals, factory
SHGC ranges from ____ to ____
0 to 1
Insolation
Amount of solar going through
BTU
Raise one pound of water one degree F
When things evaporate it makes thing around them _____
Cold
Air movement causes _____
Evaporation (and cooling)
Wet bulb is _____ by air movement over a wet sock
cooled
Wet bulb and dry bulb being the same means _____
100% humidity
______ is the total heat in the air, latent and sensible
Enthalpy
A person emits around ____ BTUs per hour
500 BTUs per hour
Balance point temperature
How much skin area your building has relative to its load
Does an internal load dominated building have a high or low balance point temperature?
Low, not much need for heating, might actually need cooling
What is the modern equivalent to balance point temperature?
Expand the area of the balance point, into a larger zone, a range of allowable temperatures that can vary by season.
A heating degree day is?
subtract average outside temp from baseline per day, add all the days up! AKA HDD (it’s the difference)
