This part of GB/T 30103 specifies the methods of testing for temperature and humidity, the main performance parameters of various types of cold storage.
This part is applicable to the determination of temperature and humidity distribution, surface temperature, ambient temperature, cooling agent temperature, inlet and outlet temperature and humidity of air cooler in all cold rooms and cooling systems for various types of cold storage.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 11605-2005 Methods of humidity measurement
GB 50072 Code for design of cold store
SB/T 10795 Methods of testing for forced convection and natural convection air coolers for refrigeration (ANSI/ASHRAE 25-2001(RA2006), IDT)
ANSI/ASHRAE 41.1-1986 (RA2006) Standard method for temperature measurement
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
dry-bulb temperature
the value indicating the temperature of pure gas or mixed gases measured by a thermometer with appropriate accuracy and subjected to radiative correction
3.2
wet-bulb temperature
The temperature indicated by a thermometer when the wrap around its CDCombination detector has a water-soaked cotton core, air with a certain flow rate blows through the cotton core, and the heat absorbed by water vaporization and the heat provided by air reach equilibrium
3.3
relative humidity
The ratio of the partial pressure of water vapor in wet air to the saturated pressure of water at the same temperature, expressed in RH (%)
