Problem Statement
Federspiel Controls has developed a new airflow
measurement and control technology called
SpeciFlow™. The SpeciFlow™ SF-1000 performs
better and is less expensive than the leading
product of its kind on the market. However,
there is a need for further development in
three areas: generic calibration curve, sensitivity
to non-uniform flow, and new I/O features.
There is a need to develop a generic calibration
curve that compensates for the effects of
geometry and damper design so that it is
not necessary to calibrate every unit.
The SF-1000 is insensitive to non-uniform flow when the control damper
on which it is installed is less than 70% open. When the damper is 70-100%
open, the SF-1000 is sensitive to non-uniform flow, and it is necessary
to use expensive flow straighteners to reduce the sensitivity to non-uniform
flow in that operating range. Consequently, there is a need to develop
a low-cost method that will make it insensitive to non-uniform flow. The
low-cost method of reducing sensitivity to non-uniform flow will require
additional I/O.
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Current News:
- The patented SpeciFlow™ technology has been licensed by the Greenheck
Fan Corporation and is being sold as the
IAQ-42.
- Two IAQ-42 units have been installed as part
of a system-wide energy efficiency program
covering the University of California and
California State University systems. Units
are installed at UC Santa Barbara and CSU
Stanislaus.
- Also visit: www.federspielcontrols.com
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