NOTE:
The cooling coil output is very high and a lot of energy would be required to provide this amount of cooling.
The cooling coil load would probably be spread over several air handling units but the it could be examined with a view to some reduction.
The coil output is high because the mass flow rate of supply air is high (17.05 kg/s) and the proportion of fresh air is also high (80%).
The mix point M is at approximately 27oC dry-bulb so there is little advantage in recirculation in this instance.
It would be advantageous to consider the supply airflow rate to see if a lower rate would be acceptable for this building.
If 6 air changes per hour are used as the ventilation rate then this would reduce the mass flow rate of supply air.
Also the engineer may consider other methods of air-conditioning a hall with a large volume such as using partial radiant cooling where surfaces are cooled rather than air.