Real execution plans for energy modelling

ladybug-tools
1

dear ladybug tools community

I have a basic question
imagine we want to start energy modeling from real execution plans. As we know, walls should be single-layered for energy modeling. Walls are drawn in real execution plans considering their thickness. The question is, should we consider the outer layer of the wall or the inner layer?
Some people consider the outer layer mandatory, but we know that the net area of the space is calculated by subtracting the wall thickness. As a result, if we consider the outer layer to extrude the wall, when the energy consumption loads are normalized by the area, the results seem to be wrong.

پیشنمایش-نمونه-نقشه-کامل-اتوکد-تاسیسات-برقی-و-مکانیکی-مسکونی-8
پیشنمایش-نمونه-نقشه-کامل-اتوکد-تاسیسات-برقی-و-مکانیکی-مسکونی-8746×573 158 KB

2

The general recommendations for building honeybee models for EnergyPlus/Openstudio are:

  1. Use the exterior side of the wall for outdoor walls
  2. Use the wall centerlines for interior walls

These rules are also generally considered ok for Radiance simulation, though some cases of people building Radiance models calibrated to real rooms will explicitly model both the interior and exterior wall faces.

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