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A duct performance model that includes the effects of leakage.

Author(s) : NIGAM V., IDEM S.

Summary

The equations governing the variation of total pressure and velocity along the axis of a duct that exhibits leakage were derived and solved numerically. Duct performance was found to depend on two dimensionless constants. Input to the model is the desired supply/return flow rate and pressure. The model calculates the required total pressure and velocity in the duct adjacent to the fan or upstream fitting; hence, it is useful in design applications. Model results were presented in terms of characteristic performance curves. Model predictions are found to compare favourably to a case presented previously in the literature.

Details

  • Original title: A duct performance model that includes the effects of leakage.
  • Record ID : 2005-1413
  • Languages: English
  • Source: ASHRAE Transactions. 2003 Winter Meeting, Chicago, Illinois. Volume 109, part 1 + CD-ROM.
  • Publication date: 2003

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