Revit MEP Heat Load Calculations

[Anonymous]

Greetings I have done heat load calculations for my model. I have 2 issues that affect my results.

1 Partitions- on all my spaces and zones the load for partitions is zero. What am I doing wrong please assist, because i know from basic principles that at least some of the partition wall are should have a value.

2. So am aware that revit produces actual results based on your information. It would be good design to consider a safety factor for my spaces. I dont know where I add the safety factor though please assist as soon as possible.

Kind Regards 

Jerry  South Africa

[devonpowell]

Hey Jerry, 

I haven't used Revit heat load calcs for a project, but hopefully can provide some things to think about on your journey. 

1. Partitions - there needs to be a dT between the partition walls for there to be heat flow. If all your interior spaces have the same setpoint then I would assume interior wall gains would be 0. With a quick google search I found this article that might help: http://inside-the-system.typepad.com/my_weblog/2011/11/what-does-the-use-load-credits-option-in-heat...

also this: https://forums.autodesk.com/t5/revit-mep-forum/revit-mep-heating-and-cooling-loads/td-p/4734849

2. I do not think you can add safety factor to the load directly, however you could use the Design Cooling Load parameter to store your load results that have the factor applied (ie. Design Cooling Load = Calculated Cooling Load * Safety Factor). You might have to use Dynamo to automate this. 

Cheers, 

Devon