I just have a couple questions about the values for the embodied energy/carbon calculations.  My first question is where the default values for embodied energy and carbon for the various materials come from?  I assume something like Athena, but I just wanted to confirm so I can answer the question when someone asks me.

My next question is that I was looking to the constructions for the structural component of the building templates in the template editor.  I wanted to make one for concrete, to add to the existing ones for steel and wood frame.  I am curious as to the values that are required, namely the "Normal Ratio" and the "High Load Ratio", both with units of kg/m2.  I  googled them and I am not sure what property these names are referring to with these units.  My only guess could be the self weight of a beam or slab based on the cross section, and then multiplied by the length of the beam.

Thanks for the help!


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In Short

Umi is a Rhino-based design environment for architects and urban planners interested in modeling the environmental performance of neighborhoods and cities with respect to operational and embodied energy use, walkability and daylighting potential. Since 2012, Umi has been  developed by the Sustainable Design Lab at the Massachusetts Institute of Technology with support from a National Science Foundation EFRI_SEED project, the MIT Energy Initiative, the Kuwait-MIT Center, the Center for Complex Engineering Systems (CCES) at KACST and MIT, Transsolar Climate Engineering and United Technologies Corporation. Further tool developed is now also being conducted at the Environmental Systems Lab at Cornell University.

A first public version of Umi was released during a public symposium on Sustainable Urban Design on May 6th 2013 at the Massachusetts Institute of Technology. Version 2.0, which also includes an embodied energy module, was released on November 7th 2014.

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