If an air economizer is required by ASHRAE 90.1, locate air handlers on the roof or in a penthouse to allow for minimal duct runs. Locating an air handler requiring a full air-side economizer on ...

Economizers used in rooftop units and air handlers are multipurpose devices that can improve both the energy efficiency and indoor environment in a wide range of commercial buildings. By increasing ...

To address the needs of the building performance analysis community and as a part of a comprehensive research project funded by ASHRAE, our team has developed an open-source Modelica-based model for ...