I need help to model Naturaly ventilated school 3 storey building. I did
modelling part in E- Quest. But further now i m stuck.Please help me in
modelling this naturally ventilated building.
If you have already modeled in eQUEST you might try zeroing out all of the
HVAC components (compressors, fans, etc.) and perform an hourly report of
the indoor DB & WB. Once you know what hours are compliant with ASHRAE 55
comfort window you can subtract those hours of energy related to HVAC from
the original design model.
I am assuming you are doing this for LEED purposes
Other possibilities are to utilized Natural Ventilation Software in order to
do the same analysis.
If you have already modeled in eQUEST you might try zeroing out all of the
HVAC components (compressors, fans, etc.) and perform an hourly report of
the indoor DB & WB. Once you know what hours are compliant with ASHRAE 55
comfort window you can subtract those hours of energy related to HVAC from
the original design model.
I am assuming you are doing this for LEED purposes
Other possibilities are to utilized Natural Ventilation Software in order to
do the same analysis.
Jorge Torres Coto
eQUEST might not be the best suited for this - you might want to look into some of the other packages - IES, design builder or a CFD package.
Vikram Sami, LEED AP BD+C
Rasheed,
What we do is model the zones in eQuest as a PVVT system, and then use the air change method for the natural ventilation.
To determine the proper air change rate, we use an IES model of the space(s), and input those results into eQuest.
It's not perfect, but it has passed LEED review.
Ideally you would build the whole model in IES or an e+ variant, but that brings along other challenges.
Good luck.
Fred Betz PhD., LEED AP