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Important Factors Related to HVAC Duct Design Services

The HVAC Duct systems are designed with the goal to allow the specified rates of air flow to the prescribed location in the HVAC system.

Optimized air flow is very essential for the effective working of the HVAC systems. So, the Hvac Duct Design services are very important so as to provide the perfect indoor air temperature and ambiance to the occupants.


The HVAC engineers and designers should keep in mind some of the important rules while designing the duct systems.

Various Factors are being Considered while Providing the HVAC Duct Design Services Such As:
  • Availability of space
  • Total costs of installation
  • Air friction loss
  • Noise level
  • Heat Transfer between the ducts
  • Airflow leakage within the ducts
  • Duct design standards and codes

As per the rules, The duct system should be designed such that the air flows in the most direct manner as possible; so as to save space, components and energy. 

There should not be any sudden changes in the air flow directions. In cases, where such changes are required, turning vanes should be used in order to reduce the pressure loss.

The air velocities should be kept within the permissible limits so as to reduce the noise and the vibration. Another important rule to consider is that the materials that are to be used for the HVAC Duct Design Services should be smooth enough so as to effectively reduce the frictional losses.

There are typically three types of duct systems that are being installed in the residential, commercial and industrial settings as per the requirement.

These are low pressure duct systems, medium pressure systems and the high pressure systems. The duct systems are designed depending upon the air velocities as needed by the different settings.


The Methods That are Commonly Used for Providing The HVAC Duct Design Services Are As Follows:
  • Velocity Method
  • Equal Friction Method
  • Static Regain Method

System Balancing is Another Important Concept to Be Considered in Relation To The Duct Design.

System balancing includes the calculation of the actual airflow rates at all the air outlets and the air inlets. The reports are finally analyzed for the better efficiency of the duct systems.


This post first appeared on Mechanical CAD Design Services, Mechanical Draftin, please read the originial post: here

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Important Factors Related to HVAC Duct Design Services

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