As a consequence of 16°C cooling water from October to May, the office buildings in Dublin can be cooled throughout the year without the use of conventional cooling. In Milan, a similar performance can be achieved from November to March
Two-stage indirect–direct evaporative cooling system
Public buildings
Tehran
Multi
Two-stage indirect–direct evaporative cooling system can be preferred to mechanical vapour compression systems in regions with higher wet-bulb temperatures to minimise energy consumption. However, water consumption of the two-stage system is 55% greater than that of traditional DEC
Direct evaporative cooling system equipped with porous ceramic evaporators
Residential buildings
Nottingham
Multi
Direct evaporative cooling system supported with porous ceramic evaporators can provide 6–8°C in dry-bulb temperature with a 30% rise in relative humidity. The maximum cooling achieved from the system is 224 W/m2
Through this system, power consumption can be decreased by about 16% in very hot climates, and the COP can be enhanced by 55% compared to conventional air conditioners
PECW constructed as ceramic pipes absorb water using capillary action. It can reduce the surface temperature of the pipe by 3–5°C than the ambient, and the ambient air temperature is dropped to 3–4°C