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University of Iowa Tennis & Recreation Complex

Challenge

Open year-round for use by the University of Iowa marching band and tennis, soccer, softball, and golf teams – as well as the public – the campus’ Hawkeye Tennis and Recreation Complex needed to be expanded to include more storage for athletic teams and the marching band. A $12 million, 87,000-square-foot addition was designed and built to seamlessly blend with the existing structure.
 
The expansion included conference rooms, offices, a large indoor turf room that can be divided with an overhead curtain assembly, and large storage rooms for equipment. It needed a heating and cooling system that would be cost efficient to run for long periods of time while accommodating fluctuations in usage.
 

Solution

A variable refrigerant flow (VRF) system designed by Shive-Hattery cools the University of Iowa Hawkeye Tennis and Recreation Complex  office area with water to refrigerant heat exchanger that is coupled with a geothermal well field installed under an outdoor practice field.
 
An energy recovery ventilation system ensures proper air quality and improves energy efficiency by recycling the heating and cooling energy that is already present in the building.
 
A radiant floor heating system was designed to supply heat directly to the floor and keeps the large steel structure warm in cooler months as the marching band and athletic teams practice indoors.
 
Because the mechanical systems for the University of Iowa Hawkeye Tennis and Recreation Complex were designed to reduce annual kBTU savings by 57%, MidAmerican Energy recognized the project with an Excellence in Energy Efficient Design Award in 2015.
 

Impact

The new addition to the Hawkeye Tennis and Recreation Complex can now comfortably be used by University of Iowa sports teams, the marching band, and the public year-round.
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