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where is CFM values for each zone in Designbuilder report?

asked 2021-12-25 21:14:31 -0600

afshin.mombeini gravatar image

updated 2021-12-27 09:38:27 -0600

hi every body, I wanted to ask when I simulate a building with several zones with designbuilder, where can I find the CFM required for each zone? or should I use the 400 CFM/ton?

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@afshin.mombeini are you interested in the supply CFM for each zone, or the outdoor air CFM for each zone?

Aaron Boranian gravatar image Aaron Boranian  ( 2021-12-26 09:08:52 -0600 )edit

the CFM required for supplying the heating or cooling not the infiltration CFM.

afshin.mombeini gravatar image afshin.mombeini  ( 2021-12-26 23:07:34 -0600 )edit

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answered 2021-12-27 09:38:44 -0600

I suspect you have not yet selected (in the Simulation tab) Output, Summary Tables, Summary Annual Reports, HVAC Sizing Summary

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In designbuilder for equipment sizing, we use heating design and cooling design tabs, in these tabs the outputs there is no required CFM/Zones. I meant like Carrier when you simulate the heating or cooling design simulations. it not only gives you heating and cooling demand in kW, but also gives you required CFM if you want to use air handling unit and you can use that to size the ducting system.

afshin.mombeini gravatar image afshin.mombeini  ( 2021-12-27 15:24:14 -0600 )edit

Hmmmm... Since I don't use the heating and cooling design tabs (only Simulation), I can't help with that. It's got to be there somewhere.... How about posting a ticket on the DB Help site?

You might also consider running a simulation instead of the heating / cooling loads.

Jim Dirkes gravatar image Jim Dirkes  ( 2021-12-27 15:43:15 -0600 )edit

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Asked: 2021-12-25 21:14:31 -0600

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Last updated: Dec 27 '21