Preliminary Commissioning and Energy Audit of a UNLV Building

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Energy Engineering: Journal of the Association of Energy Engineers





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A partial commissioning and energy audit were performed on a recently constructed building at the University of Nevada, Las Vegas (UNLV). Although the building is relatively new and has passed all building code requirements, it has not undergone a formal commissioning process to check that the mechanical systems, such as the heating, ventilation, and air conditioning (HVAC), were performing at optimally designed conditions. The building is approximately 35,000 ft2 spread over three floors.

Thefollowing components and systems were inspected, tested, and/or analyzed during the project: rooftop units, ducting flow rates, VAV units, room supply air flows, thermostats, temperature control sensors, some preliminary aspects of IAQ, some aspects of lighting, hot water heating, occupancy and occupant perceptions, and operating parameters. The building chosen has an energy management system (EMS), and hence its data can be reasonably evaluated.

In addition to the inspections of the above items in the above areas, an energy use simulation was conducted using RESHEAT to test the effects of changing thermostat and hours of operation settings on the predicted energy savings in the building. The simulation showed that with the proposed changes, as much as 16.0 percent reduction of energy use could be achieved. The proposed changes resulting from this study were deemed to minimally impact the interior environment and occupants.


Energy auditing; Energy consumption--Management; Public buildings--Energy conservation--Management


Energy Systems | Other Operations Research, Systems Engineering and Industrial Engineering | Power and Energy




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