Ball State University, Campus Wide Geothermal Conversion

Geothermal conversion and new district energy stations: Ball State University, Campus Wide Geothermal Conversion; MEP Associates, LLC

08/09/2012


Location of north well field and District Energy Station North (Click to enlarge)Project name: Ball State University, Campus Wide Geothermal Conversion

Location: Muncie, Ind.

Firm name: MEP Associates, LLC

Project type, building type: Geothermal conversion and new district energy stations, school (college, university)

Project duration: 5 years

Project completion date: 2014

Project budget for mechanical, electrical, plumbing, fire protection engineering only: $6.5 million

Engineering challenges

Accurately identifying the campus thermal profile and evaluating the current building systems in order to determine correct sizing of the well fields and the new distribution system; phasing and transformation of an existing campus system to a new geothermal Location of south well field and District Energy Station South (Click to enlarge)system while maintaining operations and use of the campus; and creating a highly efficient system in order to reduce the overall energy costs while remaining committed to providing a sustainable, healthy campus and community.

Solutions

The team at MEP started working with Ball State University in the spring of 2009 to design the largest ground-source, closed-loop district geothermal heating and cooling system in the nation. The systems feature 3,600 vertical bore holes, at 400-500 ft each; 10 miles of buried distribution piping; 1,000 miles of loop field pipe; two district energy stations; four 2,500-ton heat pump chillers; and over 40 building conversions totaling approximately 5,600,000 sq ft. The project will be installed in two major phases. The first phase began with the conversion to geothermal on half the campus and construction of the new 12,000-sq-ft District Energy Station North to house two compound centrifugal compressor heat pump chillers. This included the installation of distribution piping to buildings on the north half of campus, two well fields, and the conversion of 19 campus buildings to geothermal heating and cooling. Approximately 10 miles of hot and chilled water supply and return distribution piping was buried or installed in existing utility tunnels. Once completed, the new system will save the university $2 million in annual energy cost. By not burning 36,000 tons of coal each year, the university will eliminate 85,000 tons of carbon dioxide emissions, 240 tons of nitrogen oxide, 200 tons of particulate matter, 80 tons of carbon monoxide, 1,400 tons of sulfur dioxide and 3,400 tons of coal ash annually. Eliminating four coal burning boilers, this project will help Ball State University eliminate approximately one-half of its current campus carbon footprint.



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
2014 Product of the Year finalists: Vote now; Boiler systems; Indirect cooling; Integrating lighting, HVAC
High-performance buildings; Building envelope and integration; Electrical, HVAC system integration; Smoke control systems; Using BAS for M&V
Pressure piping systems: Designing with ASME; Lab ventilation; Lighting controls; Reduce energy use with VFDs
Case Study Database

Case Study Database

Get more exposure for your case study by uploading it to the Consulting-Specifying Engineer 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.

Protecting standby generators for mission critical facilities; Selecting energy-efficient transformers; Integrating power monitoring systems; Mitigating harmonics in electrical systems
Commissioning electrical systems in mission critical facilities; Anticipating the Smart Grid; Mitigating arc flash hazards in medium-voltage switchgear; Comparing generator sizing software
Integrating BAS, electrical systems; Electrical system flexibility; Hospital electrical distribution; Electrical system grounding
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.