The Science of ComfortTM
In the meticulous realm of cleanroom environments, controlling air quality is paramount. Price Industries’ Fan Filter Units (FFUs) offer a comprehensive array of control options for permanent split capacitor (PSC) and electronically commutated (EC) motors to ensure optimal performance, efficiency and convenience.
Topics: Controls, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Tech Tip, Critical Environments
There is a misconception that VAV diffusers are noisy, but a review of their performance data shows that they have a pressure versus noise relationship similar to that of all diffusers. The difference is that VAV diffusers have a built-in VAV damper and can close to a minimum, possibly building up pressure in the system. It is the higher pressure that makes diffusers noisy, and because of this, a method of pressure control should be used in every VAV diffuser system.
Topics: Diffusers, Pressure Drop, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Tech Tip
A variable air volume terminal unit, or VAV box, provides space-specific heating, ventilation or air-conditioning to individual zones within a larger indoor environment. The most common VAV box is a single-duct terminal unit, which regulates the volume of air that each space requires by adjusting a damper with an automated controller and actuator. VAV terminals often include additional components such as hydronic or electric heating coils and fans equipped with variable-speed motors.
Topics: Terminals, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Training, Tech Tip, Software
In modern buildings, the heating, cooling, and ventilation systems consume a large portion of the total energy use. This creates an obvious target when looking for areas where improvements and optimizations can reduce annual energy consumption. Costs associated with these improvements can be reduced year over year. Within the HVAC system, the largest consumer of energy will typically be fan energy. Using hydronic systems to transport heating or cooling energy throughout a building is a great way to dramatically reduce the overall energy consumption of the entire HVAC system.
Topics: Beams, System Efficiency, HVAC Fundamentals, HVAC, Engineering, Design Engineering, Tech Tip
The fan column is a vertical fan unit designed to discharge air into a raised access floor plenum. The unit may be likened to an air handler as it mixes filtered, cooled return air with pre-treated outside air typically from a dedicated outdoor air system (DOAS) to achieve the design supply air temperature, then discharge the mixed air into the raised access floor plenum.
Topics: Underfloor, HVAC Fundamentals, Engineering, Design Engineering, Tech Tip
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