Design of Air Conditioning System for College Application using Indirect Evaporative Cooling System

The main aim is to design an air conditioning system for college application such that not only it consumes less energy but also environment friendly with having same air properties to conventional air conditioning system, this thing is possible by using the indirect evaporative cooling system. Normal air conditioning systems uses electrical energy as power and using refrigerant as heat carrying medium to remove heat from conditioning space. This refrigerant is basically had some bad effect on environment and the power of this system is normally wasted on evaporator coil during the air cooling process, as air passes over cooling coil some of the air moisture convert into water and this condensation consumes lot more energy than simply sensible cooling process. This conventional air conditioning normally uses about 40% energy of the building total energy. Whereas the indirect evaporative air conditioning system uses sensible cooling of air for cooling the space and the indoor air properties are even better to normal air conditioning system. As this system gives 100% fresh air and the relative humidity and dry bulb temperature are similar to normal system. The main thing of this system is that it uses about 20% energy of the normal air conditioning system.