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Performance of VAV series fan-powered terminal units: experimental results and models.

Author(s) : FURR J. C., O'NEAL D. L., DAVIS M. A., et al.

Summary

Empirical models of airflow output and power consumption were developed for series fan powered variable air volume terminal units at typical operating pressures. Terminal units with 8 in. (203 mm) and 12 in. (304 mm) primary air inlets from three different manufacturers were evaluated. Generalized models were developed from the experimental data with coefficients varying by size and manufacturer. Fan power and airflow data were collected at downstream static pressures of 0.25 w.g. (63 Pa). Upstream static pressures ranged from 0.1 to 2.0 in w.g. (25 to 498 Pa). Data were collected at four different primary air damper positions and at four terminal unit fan speeds. Model variables included the RMS voltage entering the terminal unit fan, the inlet air differential sensor pressure, and the upstream static pressure. See also this Bulletin, references 2009-1274 and 1275.

Details

  • Original title: Performance of VAV series fan-powered terminal units: experimental results and models.
  • Record ID : 2009-1276
  • Languages: English
  • Source: ASHRAE Transactions. 2008 Winter Meeting, New York City, NY. Volume 114, part 1 + CD-ROM.
  • Publication date: 2008/01/19

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