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Wet Bulb Temperature Equation:
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Wet bulb temperature is the lowest temperature that can be reached by evaporating water into the air at constant pressure. It represents the temperature read by a thermometer covered in water-soaked cloth over which air is passed.
The calculator uses the wet bulb temperature equation:
Where:
Explanation: This empirical formula calculates the wet bulb temperature based on dry bulb temperature and relative humidity, accounting for the complex relationship between temperature and humidity.
Details: Wet bulb temperature is crucial for understanding human thermal comfort, heat stress assessment, HVAC system design, industrial processes, and meteorological applications. It's particularly important for assessing dangerous heat conditions where evaporative cooling becomes ineffective.
Tips: Enter dry bulb temperature in °C and relative humidity as a percentage (0-100%). Both values are required for accurate calculation.
Q1: What's the difference between dry bulb and wet bulb temperature?
A: Dry bulb temperature is the ambient air temperature, while wet bulb temperature accounts for evaporative cooling effects and is always equal to or lower than dry bulb temperature.
Q2: Why is wet bulb temperature important for human health?
A: High wet bulb temperatures indicate conditions where the body cannot effectively cool itself through sweating, potentially leading to heat-related illnesses.
Q3: What is a dangerous wet bulb temperature?
A: Wet bulb temperatures above 35°C are considered extremely dangerous as they exceed the human body's ability to cool itself, even for healthy adults.
Q4: How accurate is this calculation method?
A: This empirical formula provides good accuracy for most practical applications, though direct measurement with a psychrometer may be more precise in some cases.
Q5: Can this be used for Fahrenheit inputs?
A: The formula requires Celsius inputs. Convert Fahrenheit to Celsius first using: °C = (°F - 32) × 5/9.