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Underfloor air
distribution systems (UFAD) are being applied in increasing
numbers in the United States. In Task 2, a multi-disciplined team consisting of the University of Nevada Las
Vegas, Building Diagnostics Research Institute and GARD Analytics,
investigated HVAC design, comfort and energy issues related to
UFAD systems and collected information of existing UFAD systems in
commercial buildings to characterize existing installed UFAD
systems, identify areas that require additional laboratory
research and develop protocols for field testing of UFAD systems.
The actual performance of installed UFAD systems in the U.S. is
poorly defined and characterized, even less measured and
verified. This task addresses this gap and will collect actual
performance data to allow for accurate performance assessment of
UFAD system and will provide the foundation for future development
of design tools that can be used to compare UFAD and CAD system
applications.
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