|
Evaporative Cooler Formulas
|
|
Evaporative Cooler Effectiveness:
|
|
| E = |
Tedb – Tldb
Tedb – Tewb |
x 100 |
|
|
|
Where:
|
|
Tedb = Dry Bulb Temperature Entering Media, °F
|
|
Tldb = Dry Bulb Temperature Leaving Media, °F
|
|
Tewb = Wet Bulb Temperature Entering Media, °F
|
|
|
|
|
Water Evaporation Rate Estimate:
|
|
| Gallons per minute = |
V x (Tedb – Tldb)
500,000 |
|
|
|
Where:
|
|
V = Air Volume in cubic feet per minute, cfm
|
|
Tedb = Dry Bulb Temperature Entering Media, °F
|
|
Tldb = Dry Bulb Temperature Leaving Media, °F
|
|
|
