Cooling in building services - Planning, erection and operation
|Publication Date:||1 September 2018|
|ICS Code (Ventilation and air-conditioning systems):||91.140.30|
This standard applies to building services methods and equipment primarily used to control the temperature of indoor spaces occupied by people. However, many of the specifications and instructions are also applicable to comparable tasks, e.g., the cooling of data centres or production processes, provided the operating temperatures are above 0 °C (see also Table 1).
Typical installations on the demand side for space cooling are:
• air coolers in air conditioning installations
• space cooling surfaces, including systems for activating thermal building components
• other space cooling equipment, such as induction equipment, decentralised space-ventilation equipment (air conditioning equipment), or fan convectors
All common pumpable coolants such as water, brine, and slurry ice are examined. In addition, this standard discusses direct evaporator systems in which refrigerants are also used as energy carriers.
There are systems available today that allow cooling energy to be stored with or without phase shifts (water/ ice or PCM based on salt hydrates or paraffins). This standard includes recommendations for designing and, in particular, for hydraulically integrating accumulators in cold distribution systems. Apart from storage capacity for cooling energy, maximum discharge capacity is an important criterion to consider when dimensioning tanks