102D Flashcards
Wet thermometer reads
Wet bulb
Wet bulb temperature reads what heat
Sensible heat
Dew point is where
Dry and wet bulb are the same
Relative humidity is
The percentage of actual water vapour pressure in air compared to water vapour pressure
Relative humidity in buildings should be between
20-60%
How many grains are in one pound of water
7000 grains
Specific volume is the
Space taken up by air and is described as the number of liters weighing 1kg
Specific density
Is the pounds per cubic foot of air (lb/ft3)
VOC are
Volatile organic compounds emit toxic emissions
Basic airflow concept is
Atmospheric airflow
Indoor airflow
Conservation of energy
Air transfer is in three ways
Radiation
Conduction
Convection
Gauge pressure use
Fluid pressure
Metric gauge pressure have units called
Pascals
Three types of pressure are
Static pressure
Total pressure
Velocity pressure
Linear airflow rate is
Air velocity