There are numerous developments going on in analyzing embodied carbon of a 3D model, especially in the building structures world. Companies are building their own tools, or using proprietary LCA tool Revit integrations to assess the eCO2 of 3D models at various stages of development.
From what I can gather from Speckle’s website, it’s super flexible, and has significant applications to this process, so this is why I’m posting:
At the heart of every different eCO2 analysis process, I believe we are determining a Mass for every element, then multiplying by an eCO2 rate. I’m building something from first principles, to maintain full control over the analysis. I’m exporting to Excel, a specific set of parameters for different types of elements, e.g. Concrete Beams, Concrete Columns, Concrete Floors, Steel Beams, Steel —, etc. the list goes on, because (as anyone dealing with Revit knows) different element types and families have different parameter complexities.
It would be a big imposition on the Revit modelling process to make sure technicians are getting this data correct when initially modelling our buildings. And things like concrete on metal deck, and reinforcement rates in concrete – these are all significant enough to warrant a degree of data refinement (e.g. kg of concrete per m2 of deck, and kg of reinforcement per m3 of concrete), but impractical to get that data into the model at the initial modelling stage. So my current plan is to to export a snapshot of the model element data at a particular point in time, manually assign the necessary data to individual elements (in custom parameters, using Excel), then BIM Link (a Revit add-in) can push it back to Revit.
This is not as smart a process as I believe it can be; it requires a good deal of manual post-processing of just a snapshot of the Revit model data at a point in time. Do any Speckle users have any thoughts on how I can insert Speckle to this workflow to improve it? I don’t want to compromise any of the data refinement – that’s potentially the most challenging part. I suspect (and I could be wrong) that the visualizations of carbon analysis I’ve seen from Speckle promotional images are based on generalized data (e.g. a simple average eCO2/m3 of concrete, etc.)
All thoughts and input welcome.