ASHRAE Journal - June 2011 - 63

technology award case studies
Building at a Glance
Name: Regina Provincial Correctional Centre Location: Regina, SK, Canada Owner: Government Services Principal Use: Correctional facility Includes: Remand, medium and high secuirty units, medical unit, and offices Gross Square Meters: 10 603 m2 Substantial Completion/Occupancy: 2008

Radiant wall panel in form before the concrete was poured. After the walls were cured, they were stored and covered. The walls were craned or forklifted into place and then welded. is located on the north side of the integrated unit. Visiting and multipurpose rooms and the control post are located in the interior core. The integrated unit has a gross area of 3502 m2 (37,695 ft2). • The administration building, which consists of the visitor’s entrance, inmate drop-off area, holding cells, the inmates’ property room and a control post on the main floor. The administration offices, locker room and emergency response were located on the second floor. The administration building has a gross area of 1969 m2 (21,189 ft2). During the predesign, design and construction phases, the commissioning team, the construction management team, owners, operators, and design team worked together. This integrated design approach helped the designers evaluate proposed systems and integrate them into the project, while also meeting constructability parameters, budget constraints and scheduling requirements. At the completion of each project stage, the integrated team reevaluated
June 2011

Occupancy: 427 inmates, 112 staff

the project requirements to ensure that goals were met. The project design began in April 2005, with substantial construction completion in August 2008.
Energy Efficiency

The facility model exceeded the requirements of Standard 90.1-2004 by 38% in terms of dollar value of energy saved. Electrical and natural gas billing showed the campus had a total energy reduction of 16 683 GJ (15.8 million kBtu) after the completion of the 1913-era wing replacement at the end of 2008. This amount was greater than model energy predictions. The billing data included the addition of cooling to the remand, administration and medical areas and additional inmate capacity. Energy-efficiency measures included installing condensing boilers for the primary heating system, as well as a plate-to-plate heat exchanger for the low-temperature radiant heating system. The supply heating pumps have variable

Radiant wall welded into place. frequency drives. In addition, large DTs across the heating coils and plate exchangers reduced the pump energy. The wall insulation is equal to R-21; the roof is R-56. Low-e, high-performance glass is used in all of the buildings’ curtain walls and windows. Each building has an air-cooled reciprocating chiller, and a glycol dry cooler provides cooling in the winter. The cooling system has a high-temperature cooling loop, which is separated from the
ASHRAE Journal 63

ASHRAE Journal - June 2011

Table of Contents for the Digital Edition of ASHRAE Journal - June 2011