The advantages of air cooling system over the air conditioning systems are :
- 100% fresh, filtered clean air (no recycling of air)
- Eco- friendly system (avoids use of CFC in the system)
- Less Energy expenditure (30% of conventional AC system)
- Improvement of Indoor air quality (more air changes compared to AC system)
- Less maintenance (compared to AC system)
Air cooling system capacity calculations :
- The capacity of the system required the (CMH) volume of room x no. Of air changes required
- The number of air changes required depends upon the activity in the areas. Typical air changes per hour required for some regular application are as Workshop-25, Offices-20, Canteen-25 Stores/Godown-15 Shopping Malls-25 Hotels-25. The lowest outlet temperature for single stage system is controlled by wet bulb temperature of ambient air and is equal to WBT + 4 Deg C. For low temp requirement, two stage systems can be used.
