Trois-Rivières University (UQTR)
Trois-Rivières University (UQTR) undertook a large-scale performance contracting project to keep control of their energy budget and simplify the maintenance and operation of the university’s high pressure, high temperature district hot water network system.
A deep retrofit was required to eliminate inefficiencies from the energy systems and to address the complex operating issues resulting from decentralized equipment. Through whole-systems reengineering, the university was upgraded by converting the district heating network to a lower temperature, optimizing heat recovery and transfer among campus buildings, adding cooling in several locations, and removing outdated equipment.
The university’s new lower temperature hot water network is not only safer, it’s also simpler to operate and maintain. In addition to improving comfort for students and staff, the UQTR project has generated continuous energy savings – 108% of its performance target – and has reduced greenhouse gas emissions by 53% . UQTR is now one of the most energy-efficient campuses in Quebec.
Energy Bill Reduction
Guaranteed Annual Savings
A screw chiller with variable refrigerant flow was selected for the project. In addition to being high performance and simple to operate, this innovative, leading-edge technology acts as a learning tool for students studying building mechanics at the university.
Association of Energy Engineers' (AEE) 2018 Award - Canada Region Institutional Energy Management Award
Customized Performance Measures
Hot Water System
Conversion of the high-pressure hot water system to a low-pressure system, which involved the same technical challenges as a steam to hot water conversion. By combining several complementary measures (heat recovery, adiabatic humidification, heat cascading) the university’s need for 150 °C water was eliminated, thereby reducing the high energy costs associated with heating water to such a high temperature. The water is now heated to 75 °C.
Installation of a system that recovers heat generated by electromechanical equipment and redirects it to the heating system using a high-efficiency chiller. Energy that would otherwise be wasted is now used to its full potential.
Installation of a humidification system where water is atomized in the ventilation system to form a mist. The heat of the ambient air causes these fine water particles to evaporate. Adiabatic humidification is perfectly adapted to the building’s low-temperature systems.
Upgrade of ventilation system to efficiently deliver warm and cool air where it is most needed, and maintain appropriate levels of fresh air.
Efficient Fume Hoods
Addition of fume hoods with controllable air flow to meet actual needs.
Upgrade of systems that enable automatic control of electromechanical equipment in order to maintain occupant comfort and manage energy consumption.
Replacement of older generation bulbs and fluorescent tubes by efficient luminaires providing better lighting quality.