Hevacomp

Hevacomp Forum Part L - Shading from other buildings

Part L - Shading from other buildings

Offline T Belton over 7 years ago

I have used the shadows module to add neighbouring buildings.

I can see the difference it makes with the heat gain calculation.

but in the part L, is the shading taken into consideration?

at the moment, some of the rooms I am looking at still do not pass criteria 3, even though there is significant shading.

0 Shane Regan Tue, Mar 15 2016 7:28 AM
Hi,

The Shadows program will not have any affect on your Part L results, as shading data specific to SBEM is required for this. A guide on how best to enter this data can be found here.

Shane Regan | Principle Building Performance Support Engineer

Hevacomp to OpenBuildings - A complete guide for every user | Bentley Communities
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0 Offline T Belton Tue, Mar 15 2016 10:18 AM in reply to Shane Regan

It says in the guide
"The effect of shading from the horizon; for e.g. ground, trees, other buildings
is not considered by the SBEM calculation engine."

so do I need to put the fact that there are tall buildings around the site in the building data tab?

or is it not calculated in part L at all?
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0 Offline Duncan Brown Tue, Mar 15 2016 11:58 AM in reply to T Belton
Hi - the information in the guide is correct. Shading from ground, trees and other buildings is not considered by the SBEM calculation engine.

The data on the Solar and Wind tab in the Building Data program is used by the Design Simulation software and has no baring whatsoever on the PartL/SBEM program.

Regards,
Duncan

Duncan Brown
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