Conceptual Reference Database for Building Envelope Research |
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Concept:embodied energy"EE is the energy required to provide a product, both directly and indirectly through all processes upstream (i.e. traceable backwards from the finished product to consideration of raw materials). It can represent as much as 30 years of operational energy in buildings (Pullen, S. (1995). Embodied Energy of Building Materials. Unpublished Master of Building Science Thesis, University of Adelaide, Adelaide.)" -- Treloar, G. J., Love, P. E. D. and Holt, G. D., 1998, Using national input-output data for embodied energy analysis of individual residential buildings
Embodied energy does not referred to energy available or inherent in a material or product as a logical derivation of the words would suggest. A more accurate term for embodied energy is ¡°Cumulative Energy Demand¡±, because it represents the sum of all the energy inputs into a product system, from all stages of the life cycle which are included in the study developing the embodied energy data. For building materials this is usually extraction of materials, processing, transport and manufacture, and sometimes including capital equipment and services supplied to the product system in question. For a full product system or service the use and disposal phase may be included in the value. -- http://buildlca.rmit.edu.au/Embodied_Energy_Definition.html
Gross Energy Requirement - GER
Process Energy Requirement - PER: energy directly related to the manufacture of the material.
Life Cycle Stages of one material Extraction of raw materials, Material manufacture, Fabrication of products or components, Distribution & transport, Use, Maintenance, Disposal/ Recycling
Input Output Analysis - This is an method of determining environmental data from industry sectors based on economic activity between different sectors of the economy. -- http://buildlca.rmit.edu.au/Embodied_Energy_Definition.html
Software (a few) Lichee (www.dbce.csiro.au/innovation/2002-02/lichee.htm) Athena (www.environmental-center.com/software/athena/athena.htm)
Sites: CSIRO (www.dbce.csiro.au/brochures/embodied/) Technical Manual (www.greenhouse.gov.au/yourhome/technical/fs31.htm) at YourHome (www.greenhouse.gov.au/yourhome/home.htm) http://www.cdnarchitect.com/asf/perspectives_sustainibility/measures_of_sustainablity/measures_of_sustainablity_embodied.htm Assessment method: (www.surveying.salford.ac.uk/bqtoolkit/tkpages/ass_meth/classes/des_am.htm)
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