The three central functions of heating, ventilating, and air-conditioning are interrelated, providing thermal comfort, acceptable indoor air quality, within reasonable installation. operation, and maintenance costs. HVAC system can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces. How air is delivered to, and removed from spaces is known as room air distribution.
from my power plant project
maintain temperature and humidity and prevent out side dirt air by pressure maintain.
Those are purpose of HVAC system installed at the electrical(RTU, battery) room
Air conditioning, fresh air fan installed At the electrical room, RTU room.
Air conditioning, fresh air fan, Exhaust fan(Ventilating) installed At the battery room.
--> Hydrogen generate from the battery in case of accident, that's why Exhaust fan required and the Gas detector also required for this function.
FFU(Fan filter unit) installed at the enclosured building like turbine building.
--> Differential pressure meter installed at the FFU for the filter unit cleaning.
