Dubuque, IA
Alliant Energy needed to consolidate its operational amenities into a larger, more efficient facility to serve the rapidly growing Dubuque area. Shive-Hattery was contracted to provide design services for the new 63,000-square-foot facility as a result of their success with similar Alliant Operations Facilities including facilities in Ames, Marshalltown, Anamosa and Spirit Lake, Iowa.
Design considerations for the facility include:
- Life-cycle costs in designing HVAC systems and the building shell
- Vehicle storage and maintenance areas
- Security
- Aesthetically pleasing appearance
A geothermal heating and cooling system was chosen for the Dubuque facility to reduce life-cycle costs and improve building efficiencies. The system features a vertical bore, ground-coupled, closed-loop heat pump system with 400-foot deep wells and 80 tons of cooling capacity.
Services for this project includes surveying, architecture, interiors, environmental, civil, mechanical, electrical and structural engineering and landscape architecture planning, design and construction administration.
Vertical bore ground-coupled, closed-loop heat pump system; 400-foot deep wells, 80-tons of cooling capacity, 86,250 square feet.
DETAIL: Sq. Ft.: 62, 854 SF total facility, office space 21,813 SF (heat pumps serve this area). Levels: 2. Tonnage: 80-tons of cooling capacity. Heat Pump count & sizes: 32 water source-to-air heat pumps (extended range & high-efficiency) varying in size from less than 1/2 ton to 36 tons of cooling capacity. Heat Pump Manufacturer: Climate Master. Loop Type: Closed loop well field with polyethylene tubing with a 25% propylene glycol/ water mixture. Loop depths: 45 wells, +/- 300-foot deep wells (varies). # of Loops: 3 main loops, 15 wells to a loop.
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tags: geothermal system, maintenance, garage, carwash, office