The University of Utah
College of Architecture + Planning
Lifecycle Accounting
ITAC performs embodied energy accounting for companies and organizations to determine full lifecycle assessment of materials and systems in buildings.  For example, in a recent study ITAC quantified the amount of embodied energy and embodied carbon savings associated with resurfacing 375 Modernfold AS931 partitions versus replacing the partitions at the Salt Palace Convention Center in Salt Lake City, Utah.  

The results are as follows:
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The method used to determine the embodied energy and carbon savings is the International Standards of Organization 14000 ,which sets out the process for lifecycle assessment and its associated method of embodied energy calculation.  ISO 14000, sections 14040 and 14044 identify four phases of operation:

  1. Identify goals and scope: The goal for this study was to determine the energy and carbon savings by virtue of refurbishing 375 Modernfold partitions at the Salt Palace Convention Center versus the alternative of replacing all of the panels completely.
  2. Perform an inventory: Determine the make up of a Modernfold AS931 panel with steel skin and carpet surfacing and the amount of material in Kg used in one partition.  This data was acquired directly from Modernfold and its suppliers.  The data was parsed according to virgin material; postindustrial recycle and post consumer recycle for each new panel.
  3. Perform an impact assessment: Quantify the embodied energy and carbon of each material used in the panel in MJ/kg and Kg respectively.  This data was obtained from current peer reviewed sources on embodied energy found in 5.0 Reference section of this report.  The data was parsed likewise according to virgin material; postindustrial recycle and post consumer recycle for each new panel. Multiply the amount of material in Kg by the embodied energy in MJ to get the total embodied energy for one partition. Multiply the total embodied energy of one partition by the number of partitions (375) in the convention center.  Multiply the total embodied carbon per Kg of material for the partitions (375) to get total embodied carbon.
  4. Interpret the data:  This process was repeated for the new carpeting that resurfaced the panels for its embodied energy and embodied carbon.  The embodied energy and carbon of resurfacing carpet was compared to the embodied energy and carbon associated with replacing all of the panels.

Full Report HERE.

Sponsor:
Alders Sales Corporation

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