A supply air duct is an essential component of an HVAC system that delivers conditioned air to the interior of a building. These ducts are typically made of materials such as galvanized steel, aluminum, or fiberglass, and are designed to provide a smooth, unobstructed pathway for air to flow through. The ducts are connected to a supply air plenum, which is the primary distribution point for conditioned air. One important aspect of supply air ducts is their sizing and layout. Proper sizing is critical to ensure that the ducts can deliver the required amount of air to each room in the building. The layout of the ducts must also be carefully designed to minimize pressure drops and ensure that air is distributed evenly throughout the building. Another important consideration when designing and installing supply air ducts is their insulation. Insulated ducts help to prevent heat loss or gain as air travels through the ductwork, which can improve the efficiency of the HVAC system and reduce energy costs. In addition to their technical aspects, supply air ducts also play a role in the overall aesthetics of a building. Ductwork that is exposed in visible areas must be designed to blend in with the surrounding architecture and décor. Overall, supply air ducts are a critical component of an HVAC system that plays a key role in maintaining a comfortable and healthy indoor environment. Proper design, installation, and maintenance of these ducts is essential to ensure that they operate efficiently and effectively.
HVAC, air distribution, plenum, insulation, pressure drops
Supply air ducts, also known as ductworks, are part of the air distribution system used for heating, ventilation, and air conditioning (HVAC) within a building. These ducts are composed of a variety of materials such as galvanized steel, fibreglass, and other composite materials. The air contained within the ductwork is moved by fans or other mechanical means, and is then regulated by dampers, valves, and other components. The purpose of supply air ducts is to provide a means of delivering conditioned air to the building's interior, while also maintaining the pressure differential between the interior and exterior. The distribution system also enables the control of temperature, humidity, and air movement in order to create a comfortable and safe environment. Proper sizing and installation of the ductwork is essential in order to ensure that the air is delivered efficiently and without obstruction. Additionally, the ductwork must be constructed and installed to meet the building's local codes and regulations.
Ventilation, Airflow, Pressurization, Acoustics, Insulation.
CITATION : "Robert Miller. 'Supply Air Duct.' Design+Encyclopedia. https://design-encyclopedia.com/?E=248032 (Accessed on July 16, 2025)"
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