1. What is Wet Bulb Globe Temperature?

The Wet Bulb Globe Temperature (WBGT) is a composite temperature used to estimate the effect of temperature, humidity, wind speed, and solar radiation on humans. It's widely used in industrial, military, and athletic settings to assess heat stress.

2. How Does the Calculator Work?

The calculator uses the standard WBGT equation:

Where:

• \( T_w \) — Wet bulb temperature (°C)
• \( T_g \) — Globe temperature (°C)
• \( T_d \) — Dry bulb temperature (°C)

Explanation: The equation weights the wet bulb temperature most heavily as it accounts for both temperature and humidity effects.

3. Importance of WBGT Calculation

Details: WBGT is crucial for preventing heat-related illnesses in workplaces, military operations, and athletic events. It helps determine appropriate work/rest cycles and hydration requirements.

4. Using the Calculator

Tips: Enter all three temperature measurements in °C. Ensure measurements are taken properly - wet bulb with wetted wick, globe thermometer in black sphere, and dry bulb in shade.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between WBGT and heat index?
A: WBGT accounts for solar radiation and wind effects, while heat index only considers temperature and humidity in shade.

Q2: What are dangerous WBGT levels?
A: Above 28°C requires caution, above 30°C requires increased breaks, and above 32°C is considered high risk for heat illness.

Q3: How is WBGT measured in the field?
A: Specialized WBGT meters measure all three temperatures simultaneously, often with built-in calculations.

Q4: Are there simplified WBGT estimation methods?
A: Some methods estimate WBGT from standard weather data, but these are less accurate than direct measurement.

Q5: How often should WBGT be monitored?
A: For critical activities, monitoring should be continuous or at least hourly during heat risk periods.