ASHRAE Journal - January 2021 - 78

Greenheck Improves Occupant Comfort
in Airport Concourse
Central Wisconsin Airport (CWA)
in Mosinee, Wisconsin is a regional
airport serving more than 280,000
travelers annually. A restaurant
located in the CWA terminal serves
a variety of food to travelers and
residents of the surrounding area.
As its location in the terminal was
not always convenient for travelers
in the post 9/11 era, the airport
added a small kitchen in the
concourse operated by the
restaurant. It is quite successful
and growing. However, increasing
kitchen size to accommodate
improved menu offerings also drew
increased criticisms about cooking
odors from travelers, becoming
their most frequent complaint.
Thermal comfort in the concourse
area was also a concern. The
concourse is a very large, open
space with high ceilings and glass
window walls making it susceptible
to uneven temperatures affecting
thermal comfort. Adequate circulation
also was a challenge, adding to the
discomfort of travelers waiting to
board ﬂights.

GREENHECK'S SOLUTION
Two DC-5 HVLS fans with eight-foot
airfoils reduced air stratiﬁcation,
providing thermal comfort by gently
moving air in the space with a
maximum 29,000 cfm. Licensed to
bear the AMCA seal for Circulating
Fan Performance, the DC-5 weighs
less than 100 pounds allowing for
easy installation. Aesthetics was
another important consideration.
With ﬁnish options for every portion
of the fan (winglet, airfoil, downtube,
hub plate and universal ceiling
mount), the DC-5 fans complemented
the remodeled interior.

Model DC-5 HVLS Fan

CWA added appliances in the
kitchen to accommodate an
expanded menu in the concourse
concession area. The new appliances
required increased ventilation and
ﬁre suppression. Model GHEW wall
canopy hood with the Vari-Flow
air management system and the
Ansul® R-102 ﬁre suppression
system covered the greaseproducing appliances.
The hood, designed for greaseladen cooking, uses the Vari-Flow
air management system to regulate
airﬂow to match peak kitchen usage,
reducing energy costs. Should a ﬁre
happen, the Ansul® R-102 with eight
nozzles protects the desired cooking
equipment. Two roof-mounted model
CUE fans exhaust contaminated,
grease-laden air, removing grease
and cooking odors from the
concourse. The Type II canopy
hood (GDI) removes moderate
condensation from dishwashing
equipment in tandem with the
roof-mounted model G fan,
exhausting it into the atmosphere.

THE RESULTS
CWA airport director, Brian Grefe,
was very pleased with the project.
The ability to use different colors
on the HVLS fans was particularly
pleasing. " It matches very nicely with
the color scheme of the concourse,
and the controls for those fans were
very intuitive and easy to use. "
Learn more today at Greenheck.com
or consult with your local Greenheck
representative.

Model GHEW Wall Canopy Hood

P.O. Box 410 * Schofield, WI 54476
715.359.6171 * greenheck.com
http://www.Greenheck.com http://www.greenheck.com
ASHRAE Journal - January 2021

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