Athletic center aims high

04/01/2009


In Oskaloosa, Iowa, William Penn University recently underwent the largest and greenest expansion in the private university's 135-year history. The project featured geothermal heating and cooling, fabric ductwork, energy recovery ventilators (ERVs), and advanced BAS. The recent additions help make the 155,000-sq-ft Penn Athletic Center (PAC) the most efficient building on campus. The green design qualified William Penn for a $340,000 incentive from MidAmerican Energy, the local utility.

Michael Vogt, project engineer for design/build mechanical contractor Cunningham Inc ., believes the combination of geothermal, fabric duct, and ERVs will earn points toward U.S. Green Building Council LEED certification. The fabric ductwork from DuctSox saved 60% in HVAC ductwork installation costs versus metal duct. The fabric duct also evenly distributes heating/cooling space temperatures, which leads to shorter, energy-saving mechanical equipment run times.

 

The PAC's gable roof, which rises 45 ft at its pinnacle, presented challenges to the design team. High ceilings are mandatory for sports complexes like the PAC, so an air distribution system with a high-throw capability was necessary. Although metal duct is capable of high throws, metal duct registers placed every 10 ft result in uneven throws. The Cunningham team installed two 290-ft runs of 48-in.-round TufTex, which was specified to have 3-in.-diameter high-throw orifices running the entire length.

 

“There's a noticeable difference between the air comfort in the PAC and other large athletic buildings with metal duct/register systems,” said Vogt. “Plus, the college saved tens of thousands of dollars in installation labor costs because lightweight fabric duct is so much faster and safer for workers to install in elevated places.”

 

The geothermal system supplies the ductwork for the PAC and the 55,000-sq-ft Musco Technology Center. The system conserves the most energy of any of the new systems. The athletic center's six 20-ton heat pumps continually receive 55-F water from a geothermal well field. The water is drawn to the two buildings by two 460-V, 25-hp pumps, which run through 25 miles of underground horizontal piping bored at 15, 30, and 45 ft. Varieties of smaller heat pumps are located throughout the facility to service the locker rooms, showers, offices, and exercise rooms. While the geothermal system handles the sensible heat load of the building, Vogt specified various ERV models to handle the latent heat load by recovering energy from the return air.

 

William Penn University's state-of-the-art design is expected to be a role model for other campus buildings nationwide that want to combine green and sustainable features with indoor air comfort and quality.

 

Information provided by DuctSox.

 

AT A GLANCE

William Penn University in Oskaloosa, Iowa, underwent the largest green expansion project in the university's history. The project featured geothermal heating and cooling, fabric ductwork, energy recovery ventilators, and advanced BAS. The expansion project's highlights include:

 

  • Fabric ductwork that saved 60% in HVAC installation costs versus metal duct.

  • A geothermal system that supplies the ductwork for the PAC and the Musco Technology Center.

  • Six 20-ton heat pumps which receive 55-F water from the geothermal well field.

  • Water that draws to the two buildings by two 25-hp, 460-V pumps.

  • Installation of two 290-ft runs of 48-in-round TufTex, specified to have 3-in.-diameter high-throw orifices.



No comments
The Top Plant program honors outstanding manufacturing facilities in North America. View the 2013 Top Plant.
The Product of the Year program recognizes products newly released in the manufacturing industries.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
The true cost of lubrication: Three keys to consider when evaluating oils; Plant Engineering Lubrication Guide; 11 ways to protect bearing assets; Is lubrication part of your KPIs?
Contract maintenance: 5 ways to keep things humming while keeping an eye on costs; Pneumatic systems; Energy monitoring; The sixth 'S' is safety
Transport your data: Supply chain information critical to operational excellence; High-voltage faults; Portable cooling; Safety automation isn't automatic
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Plant Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.

These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.

Click here to visit the Case Study Database and upload your case study.

Maintaining low data center PUE; Using eco mode in UPS systems; Commissioning electrical and power systems; Exploring dc power distribution alternatives
Synchronizing industrial Ethernet networks; Selecting protocol conversion gateways; Integrating HMIs with PLCs and PACs
Why manufacturers need to see energy in a different light: Current approaches to energy management yield quick savings, but leave plant managers searching for ways of improving on those early gains.

Annual Salary Survey

Participate in the 2013 Salary Survey

In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.

Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.

2012 Salary Survey Analysis

2012 Salary Survey Results

Maintenance and reliability tips and best practices from the maintenance and reliability coaches at Allied Reliability Group.
The One Voice for Manufacturing blog reports on federal public policy issues impacting the manufacturing sector. One Voice is a joint effort by the National Tooling and Machining...
The Society for Maintenance and Reliability Professionals an organization devoted...
Join this ongoing discussion of machine guarding topics, including solutions assessments, regulatory compliance, gap analysis...
IMS Research, recently acquired by IHS Inc., is a leading independent supplier of market research and consultancy to the global electronics industry.
Maintenance is not optional in manufacturing. It’s a profit center, driving productivity and uptime while reducing overall repair costs.
The Lachance on CMMS blog is about current maintenance topics. Blogger Paul Lachance is president and chief technology officer for Smartware Group.