A key design component of the very high efficiency dedicated outside air system (very high efficiency DOAS) approach, the decoupling of ventilation from heating and cooling systems reduces energy use while significantly improving indoor air quality.
This energy modeling guide for energy analysts and design consultants addresses a resource gap for best representing very high efficiency DOAS in annual energy modeling by providing technical analysis support and recommendations using lessons learned and time-tested methods.
In commercial buildings across the U.S., outdated or inefficient HVAC systems waste a staggering amount of energy and money, while also creating unhealthy and uncomfortable indoor environments. However, research and field studies have proven there’s an optimal approach to HVAC design that can significantly improve indoor air quality and occupant...
Very high efficiency dedicated outside air systems (very high efficiency DOAS) pair the highest performance HVAC equipment with key design principles to provide cleaner and safer indoor air, enhance indoor comfort, and reduce commercial building HVAC energy use. This approach has been demonstrated to reduce HVAC energy use by an...
To better understand the potential non-energy benefits of very high efficiency DOAS, this literature review summarizes key research, empirical evidence, and studies performed on similar high-performance HVAC approaches, such as conventional DOAS.