ABSTRACT
This chapter provides an overview of water-based and air-based cold distribution systems. Open cold distribution systems using air as the heat transfer medium in air ducts to supply conditioned air to rooms and to collect the exhaust air from the building. Closed cold distribution systems using chilled water as heat transfer fluid in pipes. Heat is taken up from the space to be cooled by means of different water-to-air heat exchangers. Cold distribution for solar cooling systems is in principle no different to that of standard air-conditioning or HVAC systems. A cold distribution system has to be designed to meet the required comfort level and architectural aspects. Fan coils are the most popular method in water-to-air cold distribution systems and are used to cool or heat the building air in many different types of locations, e.g. residential buildings, offices, supermarkets, warehouses, production areas. Fan coil applications for 15/10 ° C temperature spread are also possible.
