Duct for HVAC System
A duct is a pathway used for the distribution of air. Ducts are used to move air (heated or cooled) from the central heating or cooling system to the various rooms in a building, or to remove stale air from a room and replace it with fresh air.
Ducts are typically made of sheet metal, but can also be made from flexible materials such as fiberglass. They are designed to be as air-tight as possible to ensure that the air being delivered is clean and free from contaminants. Ducts can be round or rectangular in shape, and can be located in walls, floors, or ceilings, depending on the layout of the building.
The design and installation of ductwork is an important aspect of HVAC system engineering, as it can have a significant impact on the energy efficiency, comfort, and air quality of a building.
FAQ
Ques 1 - Can you use the same ducts for heating and cooling?
Ans- Yes, the same ducts can be used for both heating and cooling in a forced-air HVAC system. This type of system uses a central air handler to circulate air through the ductwork.
Ques 2 - What are the 4 types of duct systems?
Ans. - There are four main types of duct systems used in HVAC applications:
1. Rectangular duct system: This is the most common type of duct system and is often used in commercial and industrial buildings. As the name suggests, the ducts are rectangular in shape and can be made from a variety of materials, such as sheet metal, fiberglass, or plastic.
2. Round duct system: This type of duct system is also common in commercial and industrial applications. The ducts are circular in shape and are often made from sheet metal or fiberglass.
3. Flexible duct system: This type of duct system is often used in residential applications, as it is easy to install and can be routed through tight spaces. The ducts are made from a flexible plastic material and can be bent and shaped to fit the available space.
4. Ductless mini-split system: This type of system does not use ducts to distribute air throughout the building. Instead, individual air handlers are installed in each room, which are connected to an outdoor unit via refrigerant lines.