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Improving Building Comfort and Energy Savings of the McKenzie Airport Terminal by Maintaining and Improving Pneumatic Control Systems
Abstract
McKenzie Airport Terminal is located at
Easterwood Airport, which is owned and
operated by Texas A&M University. It was built
in 1988. Most all HVAC equipment, which
includes boiler, chiller, pumps, AHUs and
exhaust fans, due to lack of maintenance, had
some form of deteriorated controls, components,
and operational function. For example, most of
pneumatic controls were failed due to bad
components, wrong settings, and disconnection
before the Continuous CommissioningR (CCSM).
This caused humid and hot problems of the
building, and wasted energy. After maintaining
and improving the pneumatic controls, the boiler
and hot water pump is now turned off when
outside air temperature is higher than 80°F. The
chiller is now shut off when the outside air
temperature is below 55 °F, and the economizers
activate to maintain discharge air temperature
when the outside air temperature is below 60 °F.
The building comfort in temperature and relative
humidity (RH) is improved after CCSM. For
example, average space temperature of the
building was above 75 °F most of the time
before CCSM and is now 73 °F after CCSM. The
relative humidity in the baggage claim area was
70% before CCSM and is now 55% after CCSM.
The annual savings of electricity for chiller and
natural gas for boiler are $5,040 and $12,090
respectively. The total annual energy savings are
$17,130.
Citation
Liu, C.; Bruner, H. L.; Deng, S.; Brundidge, T.; Turner, W. D.; Claridge, D. E. (2004). Improving Building Comfort and Energy Savings of the McKenzie Airport Terminal by Maintaining and Improving Pneumatic Control Systems. Energy Systems Laboratory (http://esl.tamu.edu); Texas A&M University (http://www.tamu.edu). Available electronically from https : / /hdl .handle .net /1969 .1 /4629.