![]() ![]() Using the right fittings in the right locations can lead to significant cost reductions and energy savings. They happen when air moves through filters, offsets, elbows, dampers, coils, and other fittings and accessories. Fitting losses account for the highest fraction of total losses.An important step of the design process is identifying the critical path, which is the duct path with the highest pressure loss. Duct losses depend on air velocity and duct characteristics - dimensions, length and material roughness. ![]() When designing air ducts, friction losses are classified by source - losses caused by the ducts themselves, and losses caused by fittings. Based on the results, air ducts are resized to balance losses. This option is recommended when ductwork is expensive and electricity is affordable.Īll ducts are sized initially, and pressure loss is then calculated individually for all sections. A high friction rate consumes more fan power, while saving on duct materials. ![]() This design approach is recommended when electricity is expensive and ductwork is affordable.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |