installation of a traditional HVAC system across the space can be extremely expen- According to the National Bu-
in its 151,000-square-foot student center. sive. Large circulator fans turn over the reau of Standards (www.eric.ed.gov/
In 2008, the project was chosen as an air in the space several times per hour, ERICDocs/data/ericdocs2sql/content_
AIA Committee on the Environment Top ensuring good air distribution with storage_01/0000019b/80/39/b3/0a.pdf),
Ten Green Project, which awards projects minimal ductwork. Fans can be used energy savings of 1 to 3 percent can be
incorporating sustainable, effi cient, to generate a cooling effect, which achieved for each degree the thermostat
community and environmental attributes. decreases the energy consumed by is lowered during the heating season
“Our overhead fans are a unique addition the air-conditioning system. or raised during the cooling season. If a
that adds to the ambience and comfort The key to the effectiveness of facility owner using a fan is able to adjust
of the building,” says Leland Bennet, overhead fans is the huge volume of air the thermostat several degrees, energy
director of the LBC. generated. For example, the fans used by savings can be up to 15 percent or more
Chandler-Gilbert Community College and year round.
Choosing An
Tulane University feature 10 patented In-depth engineering coupled with
Overhead Fan
hollow-core airfoils that move very slowly, industrial design and expertise in aero-
creating gentle, non-disruptive and non- dynamics have allowed for technological
There are several important factors to con-
turbulent airfl ow. Although large and advances of fan components to ensure
sider when choosing a cooling system for
powerful, these large-diameter fans are longevity and durability while contribut-
new or existing buildings. In wide-open
also energy effi cient because they use very ing to customers’ conservation efforts.
spaces, the amount of ductwork required
small motors, particularly relative to the Building owners should look for fan
to effectively distribute conditioned air
volume of air movement generated. manufacturers who complete materials
“There is a direct relationship to our sustainabil-
and design analysis through the use of
ity initiative and utilizing the fans, definitely with
computer simulation verifi ed by physical
laboratory testing. This combination en-
consideration to energy conservation.” ables the manufacturer to specify the best
alloy, heat treatment and design confi gu-
— BRUCE SCHARBACH, director of facilities services, ration for each component to ensure the
Chandler-Gilbert Community College best possible performance and durability
of the end product.
Chandler-Gilbert Community
College and Tulane University join more
than 100 universities nationwide that
have installed large, overhead fans.
Whether retrofi tting a century-old
library or converting a storage facility
into a student center, large, overhead
fans offer an attractive, affordable and
immediate air-movement solution
for any academic setting.
Chandler-Gilbert
Community College
NS RETROFIT MAGAZINE // FALL 2009 21
Retrofit_sept09.indd 21 9/22/09 8:18 PM
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