Home
Back
Simple Wet Bulb Calculation:
| From: | To: |
Wet bulb temperature is the lowest temperature that can be reached by evaporating water into the air at constant pressure. It represents the cooling effect of evaporation and is an important parameter in meteorology, HVAC, and human comfort assessment.
The calculator uses the simple approximation formula:
Where:
Explanation: This formula provides a quick approximation of wet bulb temperature based on the difference between dry bulb and dew point temperatures.
Details: Wet bulb temperature is crucial for assessing heat stress on humans and animals, designing cooling systems, predicting weather patterns, and understanding evaporative cooling processes in various industrial applications.
Tips: Enter dry bulb temperature and dew point temperature in degrees Celsius. Ensure dry bulb temperature is greater than or equal to dew point temperature for valid results.
Q1: How accurate is this approximation?
A: This is a simple approximation that works reasonably well for typical atmospheric conditions but may not be precise for extreme temperatures or very dry/humid conditions.
Q2: What's the difference between wet bulb and dew point?
A: Dew point is the temperature at which air becomes saturated, while wet bulb temperature is the temperature reached by evaporative cooling.
Q3: When is wet bulb temperature most important?
A: Particularly important for heat stress assessment, cooling tower design, and meteorological forecasting of precipitation and fog formation.
Q4: Are there more precise calculation methods?
A: Yes, more accurate methods involve psychrometric charts or iterative calculations using the psychrometric equation that accounts for atmospheric pressure.
Q5: Why is wet bulb temperature limited to 35°C for human survival?
A: At wet bulb temperatures above 35°C, the human body cannot effectively cool itself through sweating, leading to potentially fatal heat stress.