db = dry bulb temperature

Inlet dry bulb (wet bulb) temperature

Inlet dry bulb (wet bulb) temperature

ambient temperature means the dry bulb air temperature, expressed in degrees Celsius

outdoor temperature (Tj) means the dry bulb outdoor air temperature [°C] (with the relative humidity indicated by the corresponding wet bulb temperature

Outdoor temperature (Tj) means the dry bulb outdoor air temperature [°C] (with the relative humidity indicated by the corresponding wet bulb temperature

indoor temperature (Tin) means the dry bulb indoor air temperature [°C] (with the relative humidity indicated by the corresponding wet bulb temperature

Indoor temperature (Tin) means the dry bulb indoor air temperature [°C] (with the relative humidity indicated by the corresponding wet bulb temperature

outdoor temperature (Tj) means the dry bulb outdoor air temperature, expressed in degrees Celsius; the relative humidity may be indicated by a corresponding wet bulb temperature

outdoor temperature (Tj) means the dry bulb outdoor air temperature, expressed in degrees Celsius; the relative humidity may be indicated by a corresponding wet bulb temperature

Climate class together with the associated dry bulb temperature and the relative humidity

Summary: Dry bulb temperature is typically called “air temperature.

Dry bulb temperature is what is usually meant by "air temperature".

Dry bulb temperature is typically called“air temperature.

The humidity value is used in conjunction with the dry-bulb temperature to generate an enthalpy error signal which is a function of both the dry-bulb temperature and the relative humidity values.