topic Re: How to convert CFM load to CFM based on volume of space in Revit MEP Forum

How to convert CFM load to CFM based on volume of space

brianwclayton1969 — Wed, 09 Nov 2016 01:00:35 GMT

When I'm running Heating and Cooling load Analysis for a Commercial building or a house, Revit calculates the CFM based on load, I need Revit to calculate the CFM based on volume.

How can I have Revit convert the CFM load to CFM based on volume?

Re: How to convert CFM load to CFM based on volume of space

Anonymous — Thu, 15 Dec 2016 07:18:18 GMT

Hi Iceman. Revit computes CFM based on volume. If you select the space after the computation you will see the units is L/s and same if you look at the report. Apology if I didn't get your question.

Re: How to convert CFM load to CFM based on volume of space

brianwclayton1969 — Thu, 15 Dec 2016 15:48:33 GMT

goodrichard_21 what is L/s? So I know what I'm looking for when I click on the space after the calculation.

Thanks

Re: How to convert CFM load to CFM based on volume of space

Anonymous — Fri, 16 Dec 2016 00:36:46 GMT

Hi. L/s is Liter/s per second. It is a unit of airflow. Please see attached image for your reference. Thanks.

Re: How to convert CFM load to CFM based on volume of space

brianwclayton1969 — Sat, 17 Dec 2016 20:45:13 GMT

goodrichard_21

I don't have the option to change my units in the Properties see attached

Thanks

Re: How to convert CFM load to CFM based on volume of space

Anonymous — Sun, 18 Dec 2016 02:50:33 GMT

Hi iceman. Your units is CFM which is unit also of airflow. If you want to change that to Liters per second or L/s, you type UN to open the Units dialog box. From this box, look for Mechanical, then change the airflow units to L/s.