Insulated Air Duct Technology Principles

From a technical perspective, insulated air ducts typically consist of two layers of metal walls, inner and outer, with an insulation layer in between. The choice of insulation material is crucial; common materials include aluminosilicate needled blankets, fiberglass, and rock wool. These materials have low thermal conductivity, effectively blocking heat conduction paths. Furthermore, the design of insulated air ducts also considers smooth airflow to reduce additional energy consumption caused by friction and eddies.