Ventilating the electrical equipment room

Good day.

Here, I have been trying to make standard calculations for ventilating the electrical room containing AC\DC panels, Inverters etc to supply enough air to the room so that suction fans present inside the inverters work at its operating rate of air flow required to operate at maximum efficiency.

So, with the below inputs available how can i design ventilation system ( to maintain indoor air quality, epuipment below critical operating temperature, occupant comfort ) ?

Inputs known:

1. Room dimensions.

2. Total heat dissipated from all electrical equipment.

3. airflow rate required for each suction fan of inverter(eq. 4600 m3/hr)

4. Always in the operating time the room is open with free air flow. (shutter door, windows, doors all are completely opened)

Things I wanted to know?

1. Whether any thermal inputs to be considered for inflow air. (temperature, humidity details of site location)? , usual outside temperature varies from 20 degree C to 45 degree C.

2. How to arrive at amount of air to be pumped into the room.? If, then what are the ways ?

3. Total heat calculations to be done.

4. Also, good practice for design of ducting for inverter exhaust air outlets to be followed .

5. How can we decide whether any air conditioning required?

If possible , share any helpful documents, links , sites which will be helpful

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Thanking you all