Healthier building environments provide increased health, happiness and productivity in addition to reducing employee attrition. Designing high performance small or medium sized office buildings can present a challenge when trying to deliver a superior indoor environment while meeting increasingly stringent demands for efficiency.
To that end, ASHRAE has developed an Advanced Energy Design Guide to provide practical and realistic strategies for improving the indoor environment for office buildings, with off-the-shelf technologies, that is free to download and very accessible. It is written in a “how-to” format and recommends several HVAC strategies to achieve a 50% energy savings while delivering superior indoor environmental quality.
Recommendations that are applicable to all climate zones include, but are not limited to: water source or ground source heat pump systems (WSHP/GSHP), Dedicated Outdoor Air Systems (DOAS) and exhaust air energy recovery.
It is recommended that the energy recovery device should have a minimum total effectiveness as indicated in the following table:
The energy recovery device should also not have a supply side pressure drop greater than 0.85-inch w.c. or 0.65-inch w.c. on the return; while a total energy recovery device should be used, caution should be exercised when employing an enthalpy for critical spaces.
Venmar CES Dedicated Outdoor Air Solutions® are designed with high efficiency energy recovery technologies at their core and incorporate a variety of extremely efficient options and features to meet or exceed your design objectives.
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U.S. Environmental Protection Agency
50% AEDG for Small to Medium Office Buildings