What is a constant air volume?

The constant air volume (CAV) is a method for controlling air conditioning systems in buildings that supply a stable air flow level at two different temperatures and maintain standard air pressure throughout the system. Because it is one of the ways to create a standard heating, ventilation and air conditioning system (HVAC), the actual function of the machine may vary depending on the needs of the building. An alternative to the constant air volume system is the variable air volume system (R&D). While both are used in the design of the building, each has several unique advantages over the other. These air needs are provided either by individual air handling units, or one central unit known as a box with a constant air volume that can switch back and forth between heating and cooling the air that draws into the pipeline. Individual rooms or businesses in an office building and then control room temperature by regulating a mixture of hot and cold air that is allowedEN to the room. This gives the constant air volume system an advantage over its alternative in that the room temperatures can be changed faster than they can by means of the R&D system.

Variable air volume systems tend to be much more complex than their counterparts with constant air volume, as they must use temperature control and manipulate the actual air volume that is pumped into each room. Pipe work are built -in shock absorbers and fans with variable speeds to make it easier, and the system controls are automatically on the bike and closed, or on and off. While the R&D system is more difficult to design and implement, it is more energy efficient than the CAV system, as the components of the variable air construction only run as needed. Air Supply from a constant air volume system is continuously supplied in quantities that meet the thermostat setting Budoyou.

The integration of the CAV system into the building can be physically more extensive on the construction from the beginning, but is often used in smaller buildings with simple HVAC needs or large buildings with open floor plans, such as auditorium buildings, gym or lecture halls. Publicly used spaces often have CAV systems for air conditioning, such as shopping centers, government centers and libraries. The constant approach of air volume is built on machines that are easy to maintain and relatively free of maintenance compared to the R&D system. It works best for spaces, such as large open sports arenas with low air flow limits. If the layout of the building changes over time and provides even smaller rooms, the CAV system is modified to provide more zone capabilities that make it more like a R&D system, each room for more individual treatment for enviomence controls.