With the ever-increasing environmental impacts of local pollution, extreme weather events and wildfires, there is a necessity for resilient, flexible, and extremely efficient HVAC systems. Unfortunately, while HVAC systems are critical to our comfort and well-being, conventional systems are costly to operate and contribute to over 50% of total energy usage in commercial buildings. Dedicated outdoor air systems (DOAS) are a proven solution for reducing energy consumption since they optimize the control and functionality of ventilation and thermal comfort separately. A very high efficiency approach to DOAS maximizes energy efficiency by decoupling ventilation air from comfort conditioning, including air-to-air heat recovery, right-sizing of a high efficiency heating and cooling system and minimizing fan power. This allows for many benefits, including:
Jordan Pratt, PE, CEM
Jordan is a Mechanical Engineer with a passion for energy efficiency. He has experience analyzing complex mechanical systems as well as installing, commissioning, metering, and testing a variety of equipment and systems. Prior to joining Energy 350, Jordan worked as a mechanical design engineer specializing in high performance and sustainable systems. Jordan is a registered Professional Engineer (PE) in Oregon and received a B.S. in Energy and Design Engineering and a M.S. in Sustainable Design and Construction from Stanford University.
- Demonstrated reduction of building HVAC energy use by an average of 69% over conventional systems,
- Excellent indoor air quality (IAQ) and thermal comfort,
- Proven flexibility and resiliency to adapt to changing occupant densities, increased IAQ requirements, and extreme weather events,
- Significant carbon emission reduction with minimal peak electric demand increases in sites that convert from gas to electric heat.
- WSEC 403.3.5 - Dedicated outdoor air systems
- WSEC 406.2.2.6 - High performance DOAS measure (as many as 40 additional energy efficiency credits)
- Economics of VHE DOAS vs. WSEC minimum
- ERV technologies that achieve 82% sensible recovery (micro-channel counter-flow HX, advanced rotary wheel HX, reciprocating dual-core HX)
![](https://pugetsoundashrae.org/wp-content/uploads/2023/09/Jordan-Pratt-300x270.jpg)
![](https://pugetsoundashrae.org/wp-content/uploads/2016/08/Register-300x71.png)
When
September 20th, 2023 from 12:00 PM to 1:00 PM
Location
Online (WebEx)
WA
United States
WA
United States