CBECC-Com Nonresidential Compliance Software

Highrise Residential Modeling  (FAQ)

Click here to return to main FAQ page

Highrise Residential Projects Recommended Modeling Methodology for Projects using Forced Ventilation (DOAS/Exhaust Based Systems)

The CBECC-Com support team has recently identified a bug in EnergyPlus that is affecting the modeling of highrise residential projects. This bug affects projects where the residential spaces have cooling & heating equipment and use forced ventilation - either continuously operating DOAS or exhaust based systems. It is recommended that these projects model the ventilation to the residential spaces using the 'Natural' option until EnergyPlus corrects the bug and is incorporated into a new release of CBECC-Com. Please note that the 'Natural' option models a constant ventilation rate with zero fan power for both Baseline and Proposed cases, and does not imply that 'Natural Ventilation' is modeled.

Highrise residential projects which have heating only systems (e.g. baseboards) serving the residential spaces can continue to model forced ventilation.

If there are further questions regarding this, then please send an email directly to CBECC.Com@gmail.com.

CBECC-Com Versions affected: CBECC-Com 2013 v3d/v3e, CBECC-Com 2016.2.0 / CBECC-Com 2016.2.1

Click here to return to main FAQ page