Enthalpy of vaporization — hum_evap

Calculates heat of evaporation for water from air temperature.

Usage

hum_evap_heat(...)

# Default S3 method
hum_evap_heat(temp, ...)

# S3 method for class 'weather_station'
hum_evap_heat(weather_station, ...)

Arguments

...: Additional arguments.
temp: Air temperature in °C.
weather_station: A weather_station object.

Value

Numeric. Enthalpy of vaporization in J/kg.

Details

The enthalpy of vaporization ($L$) is the amount of heat required to convert a unit mass of a liquid into vapor without a temperature change. It is calculated using the formula: $$L = (2.5008 - 0.002372 \times T) \times 10^6$$ where $T$ is the temperature in °C. The temperature-dependent latent-heat formula is documented from Bendix (2004) appendix material.

References

Bendix 2004, p. 261.

Examples

# Calculate enthalpy of vaporization
hum_evap_heat(temp = 25)
#> [1] 2441500