Corrected Effective Temperature Calculator

The Corrected Effective Temperature (CET) Calculator determines how the temperature feels to humans by factoring in the effects of air temperature, humidity, and evaporation. Unlike standard temperature measurements, the CET adjusts for relative humidity, making it an essential tool for assessing thermal comfort in indoor and outdoor environments.

This tool is valuable in fields like meteorology, HVAC system design, workplace safety, and personal comfort assessment.

Formula of Corrected Effective Temperature Calculator

The formula for calculating Corrected Effective Temperature is:

Corrected Effective Temperature = Dry Bulb Temperature – (0.55 × (1 – Relative Humidity) × (Dry Bulb Temperature – Wet Bulb Temperature))

Detailed Formula Components:

1. Dry Bulb Temperature:
   The ambient air temperature, measured by a standard thermometer, in degrees Celsius (°C) or Fahrenheit (°F).
2. Wet Bulb Temperature:
   The temperature recorded by a thermometer with its bulb wrapped in a water-soaked cloth exposed to air. It accounts for cooling effects due to evaporation.
3. Relative Humidity:
   The proportion of moisture in the air relative to the maximum amount of moisture the air can hold at the same temperature. It is expressed as a decimal (e.g., 50% = 0.50).
4. Corrected Effective Temperature (CET):
   The adjusted temperature, reflecting how the temperature feels considering humidity and air temperature.

Key Notes:

• Higher relative humidity decreases the cooling effect of evaporation, leading to a higher CET.
• Accurate measurement of wet bulb and dry bulb temperatures ensures reliability.

Pre-Calculated Values Table

This table shows sample Corrected Effective Temperature values for varying conditions:

Dry Bulb Temperature (°C)	Wet Bulb Temperature (°C)	Relative Humidity (%)	Corrected Effective Temperature (°C)
30	25	50	27.13
35	28	70	33.27
25	20	40	22.50
40	30	80	37.90
20	18	60	19.45

Example of Corrected Effective Temperature Calculator

Scenario:

You measure the following:

• Dry Bulb Temperature: 30°C
• Wet Bulb Temperature: 25°C
• Relative Humidity: 50%

Calculate the Corrected Effective Temperature.

Step-by-Step Solution:

1. Identify the formula:
   Corrected Effective Temperature = Dry Bulb Temperature – (0.55 × (1 – Relative Humidity) × (Dry Bulb Temperature – Wet Bulb Temperature))
2. Substitute the values:
   Dry Bulb Temperature = 30°C
   Wet Bulb Temperature = 25°C
   Relative Humidity = 50% = 0.50CET = 30 – (0.55 × (1 – 0.50) × (30 – 25))
3. Perform the calculation:
   CET = 30 – (0.275 × 5)
   CET = 30 – 1.375 = 28.63°C

Result:

The Corrected Effective Temperature is approximately 28.63°C.

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