
	Where results make sense

Topic: Embodied energy

Related Topics

Landfill

In the News (Sun 27 Dec 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Embodied energy - Wikipedia, the free encyclopedia
		Embodied energy as a concept used in systems ecology seeks to measure the "true" energy cost of an item, and the extended this to the concept of "true" value.
		Without an estimation and declaration of the embodied energy error, it is difficult to calibrate the sustainability index, and so the value of any given material, process or service to environmental and human economic processes.
		Anthropocentric embodied energy analysis is interested in what energy goes to supporting a consumer, and so all energy depreciation is assigned to the final demand of consumer but not to storages of ‘assets’ or ‘capital stocks’.
	en.wikipedia.org /wiki/Embodied_energy (1200 words)

	Welcome To Home Energy Magazine Online
		Embodied energy, or "embedded energy," is an assessment that includes the energy required to extract raw materials from nature, plus the energy used in primary and secondary manufacturing activities to provide a finished product.
		Furthermore, energy involved in maintaining an individual building component, and finally removing it and recycling it or otherwise disposing of it at the end of its useful life, can all be part of the embodied energy equation for a particular building material, depending on how the embodied energy is quantified.
		As operating energy is reduced through energy efficiency measures, embodied energy comes to represent an increasingly significant percentage of the total energy consumed by a structure.
	www.homeenergy.org /archive/hem.dis.anl.gov/eehem/95/950109.html (2104 words)

	measure of sustainability embodied energy
		Implicit in the measure of embodied energy are the associated environmental implications of resource depletion, greenhouse gases, environmental degradation and reduction of biodiversity.
		Initial embodied energy consumption depends on the nature of the building, the materials used and the source of these materials (this is why data for a building material in one country may differ significantly from the same material manufactured in another country).
		The recurring embodied energy is related to the durability of the building materials, components and systems installed in the building, how well these are maintained, and the life of the building (the longer the building survives, the greater the expected recurring energy consumption).
	www.cdnarchitect.com /asf/perspectives_sustainibility/measures_of_sustainablity/measures_of_sustainablity_embodied.htm (1058 words)

	CMIT - Brochures - Technologies - Embodied Energy
		Embodied energy is the energy consumed by all of the processes associated with the production of a building, from the acquisition of natural resources to product delivery, including mining, manufacturing of materials and equipment, transport and administrative functions.
		The energy embodied in existing building stock in Australia is equivalent to ten years of the total energy consumption for the entire nation.
		Embodied energy is one measure of the environmental impact of construction and the effectiveness of any recycling, particularly CO2 emissions.
	www.cmit.csiro.au /brochures/tech/embodied (542 words)

	Your Home Technical Manual - 3.1 Embodied Energy
		Embodied energy is a significant component of the lifecycle impact of a home.
		Embodied energy content is incurred once (apart from maintenance and renovation) whereas operational energy accumulates over time and can be influenced throughout the life of the building.
		There is little benefit in building a house with high embodied energy in the thermal mass or other elements of the envelope in areas where heating and cooling requirements are minimal or where other passive design principles are not applied.
	www.greenhouse.gov.au /yourhome/technical/fs31.htm (1862 words)

	Environmental Math :: Embodied Energy, Efficiency and Emergy
		Embodied Energy H.T. Odum’s insightful concept, along with the diagram in Fig.1 was introduced in the earlier chapter Economics as If Energy Matters.
		Since Embodied Energy is proportional to TR, this means that it is proportional to the reciprocal of Eff.
		Their corresponding energy qualities will also be the same, except that the top input is medium quality energy for the left system and is high quality energy for the right system.
	web.math.fsu.edu /~fusaro/DL/chapter9.html (1953 words)

	Embodied Energy
		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.
		Feedstock energy is included because it represent a depletion of available energy reserves (oil and gas) even though, in some cases, a substantial proportion of this feedstock energy can be recovered at the end of life in energy recovery facilities, is they exist.
	buildlca.rmit.edu.au /Embodied_energy_definition.html (505 words)

	Welcome To Home Energy Magazine Online
		Embodied cost is the complete life cycle cost of gathering, manufacturing, transporting, assembling, and even recycling building materials (see "Reducing the Embodied Energy of Buildings," HE Jan/Feb '95, p.
		In 1976, the Energy Research Group, University of Illinois at Chicago, and architects Richard G. Stein and Associates did a complete study of building materials and the embodied energy that each represented.
		For example, in a hot, dry climate such as that in Phoenix, the energy demand of a one-story house with high-mass walls is equivalent to the energy demand of a similar wood-frame house made with R-25 light-weight walls.
	www.homeenergy.org /archive/hem.dis.anl.gov/eehem/99/990514.html (3520 words)

	CRDEssay: Embodied Energy
		Embodied Energy: Embodied energy in building materials has been studied for the past several decades by researchers interested in the relationship between building materials, construction processes, and their environmental impacts.
		The initial embodied energy in buildings represents the non-renewable energy consumed in the acquisition of raw materials, their processing, manufacturing, transportation to site, and construction.
		The recurring embodied energy in buildings represents the non-renewable energy consumed to maintain, repair, restore, refurbish or replace materials, components or systems during the life of the building.
	alcor.concordia.ca /~raojw/crd/essay/essay000367.html (233 words)

	energy&permaculture
		The energy laws governing all natural proceses are well understood and have not been challenged by any of the revolutions in scientific thinking during the 20th century.
		The embodied energy of a book is very large compared with the heat energy that would be obtained if the book were burned.
		Energy Basis for Man and Nature is an accessible text on Odum's work written for high school and undergraduate students with only minimal matbs and science.
	www.permacultureactivist.net /Holmgren/holmgren.htm (3484 words)

	[No title]
		PV research indicates that the energy embodied in the balance of system components of field pv installations is significantly greater than the energy embodied in the balance of system components of roof-mounted pv installations (Frankl et al., 1998; Blakers and Weber, 2000; Alsema, 2000).
		Primary energy is the total fuel cycle energy per unit of energy consumed and accounts for the energy expended to extract, refine and deliver fuels.
		The total energy embodied in the life cycle of the Springerville mc-Si pv installations is 12,352 kWh per kWp DC of installed pv.
	www.nrel.gov /ncpv/thin_film/docs/final_lca_sgs_pv_plant_tucson.doc (1203 words)

	EMBODIED ENERGY (Site not responding. Last check: 2007-10-14)
		This includes the energy to extract the clay, transport it to the brick-works, mould the brick, fire it in the kiln, transport it to the building site and put the brick into place.
		So the components of embodied energy are the manufacturing, the transportation and the disposal energy.
		The database was obtained by Ecobalance, a European organisation leader in the research of embodied energy.
	www.esru.strath.ac.uk /EandE/Web_sites/98-9/energy_management/embodied.htm (222 words)

	Energy, Entropy, Economics, and Ecology
		The decline of usable energy is the increase of entropy (the increase of sand in the bottom chamber of the hour glass, to recall the analogy in the Introduction).
		This, too, is energy, and the amount of energy in the heat and ashes equals that previously in the coal.
		Thereafter, although the amount of energy in the heat, gases and ashes is the same as the amount that was in the wood, it is scattered (unavailable).
	www.dieoff.com /page17.htm (9313 words)

	TecEco - Embodied Energy (Site not responding. Last check: 2007-10-14)
		The term embodied energy refers to the amount of energy that has gone into the making of a material or thing made with materials.
		A very high percentage of the world’s energy is derived from fossil fuels which when burnt release vast amounts of CO2.
		The manufacture of magnesia[2] is a low temperature efficient process requiring less energy for the volume of concrete produced.
	www.tececo.com /sustainability.embodied_energy.php (194 words)

	BuildingGreen.com - EBN 4:1 - Insulation Materials: Environmental Comparisons
		Embodied energy is the energy required to produce and transport materials.
		While the embodied energy of insulation materials is usually quite low compared with the energy a given amount of insulation will save over its lifetime, it is nonetheless important.
		For this broad comparison, it is reasonable to assume that a Btu of energy used by one industry is roughly comparable in terms of resource use and resultant pollution to a Btu used by another industry.
	www.buildinggreen.com /features/ins/insulation.html (5004 words)

	The Energy Intensity of Photovoltaic Systems
		In addition to energy embodied in PV materials, the energy embodied in the machines used in manufacturing need to be taken into account.
		For the sake of simplicity, it is assumed that the energy content of PV wafers calculated under the assumptions described in preceding paragraphs holds: a simple flow of silicon from quartz to Czochralski ingot..
		The embodied energy in the PV system can be divided by the system lifetime (30 years) to calculate the equivalent greenhouse gas emissions per year.
	www.ecotopia.com /apollo2/pvepbtoz.htm (3864 words)

	EROEI - Wikipedia, the free encyclopedia
		In physics and energy economics, EROEI (energy returned on energy invested) is the ratio between the amount of energy expended to obtain a resource, compared with the amount of energy obtained from that resource.
		When the EROEI of a resource becomes equal to or lower than 1, that energy source becomes an energy sink and can no longer be used as a primary source of energy.
		For example, when oil was originally discovered, it took on average one barrel of oil to find, extract, and process about 100 barrels of oil.
	en.wikipedia.org /wiki/EROEI (214 words)

	Embodied Energy (Site not responding. Last check: 2007-10-14)
		This is 'embodied' energy, which is all the energy required to extract, manufacture and transport a building's materials as well as that required to assemble and 'finish' it.
		The common building material with least embodied energy is wood, with about 640 kilowatt-hours per ton (most of it consumed by the industrial drying process, and some in the manufacture of and impregnation with preservatives).
		Also, because the energy used in transporting its materials becomes part a building's embodied energy, this is an incentive to use local materials, thus helping the building to be embedded in place.
	www.archleague.org /tenshadesofgreen/shade4.html (290 words)

	Environmental Math :: Economics as If Energy Matters
		To move one step deeper, it is the energy embodied in goods and services that drives an economy.
		It is measured by incineration in a bomb calorimeter, reducing the energy of the material to its thermal content.
		The energy chain in Fig.2 shows that it takes 40,000 units of solar energy units to produce one unit of coal energy.
	www.math.fsu.edu /~fusaro/DL/chapter6.html (1450 words)

	Lower 'Embodied Energy' Materials - Industrial Research Assistance Program (Site not responding. Last check: 2007-10-14)
		The embodied energy of a material refers to the energy used to extract, process and refine it before use in product manufacture.
		For example, composite materials involving carbon fibres or ceramic compounds may have a relatively high embodied energy, but when they are used appropriately, they can save energy in a product's use-phase due to their advanced physical properties, e.g., strength, stiffness, heat or wear resistance.
		On the other hand, materials with less embodied energy may often be substituted without a loss in product performance, if you optimize the use of the material with respect to the product's reliability/durability and technical/aesthetic functions.
	dfe-sce.nrc-cnrc.gc.ca /dfestra/dfestra3/dfestra3_3_e.html (182 words)

	SocietyGuardian.co.uk \| Society Environment \| The green house effect
		At least 30% of the UK's total energy demand is accounted for by domestic housing, so clearly it's going to take a lot more to solve the problem than just laying a bit of loft insulation.
		First, although the amount of energy people use in their homes creates an enormous amount of carbon dioxide, it's far from the only factor in domestic housing.
		Transportation energy costs vary according to how heavy the material is and how far it's come.
	society.guardian.co.uk /environment/story/0,14124,1476295,00.html (874 words)

	Green Building Encyclopedia - Glossary of Green Building Terms
		Embodied Energy is the total energy sequestered from a stock within the earth in order to produce a specific good or service including extraction, manufacture, and transportation to market.
		Energy traveling in the form of electromagnetic waves, measured in units of energy such as joules, ergs, or kilowatthours.
		An estimate of the environmental costs (for example, raw materials, energy pollution, and solid waste) associated with a unit of a material, such as a ton of steel or a cubic yard of c o n c r e t e.
	www.whygreenbuildings.com /glossary.php (6282 words)

	ENERGY (Site not responding. Last check: 2007-10-14)
		This embodied energy is used by the substance, during interaction with other substances.
		The embodied energy acts somewhat of a weight when interacting; it uses this weight to capture electrons (energy) from other substances.
		More importantly it is capturing the energy of a particular environment and translating it into an emotion, or energy of the mind.
	www.bsu.edu /web/rmhorner/energy.htm (649 words)

	Embodied Energy - Another good reason to buy locally manufactured products (Site not responding. Last check: 2007-10-14)
		Embodied energy is a measure of all of the energy required to make a particular product, from the harvesting of raw materials, through all of the refining and manufacturing processes, and including all transportation costs.
		In terms of the manufacture of some common building materials, concrete has a high embodied energy and so does steel.
		While energy is cheap, the embodied energy may not play an important part in influencing the price of a product, but when energy costs rise, products with a high embodied energy will increase in cost faster than alternative products for that application that have lower embodied energy.
	home.usit.net /~bhooper/embodied.htm (422 words)

	EmergySystems.Org
		Costanza, R. "Spacial Distribution of Land Use, Incoming Energy and Energy Use in South Florida from 1900 to 1973." MS Thesis.
		Energy Model and Analysis of a Cadmium Stream with a Study Correlating Embodied Energy and Toxicity Effect.
		Energy flow and emergy analysis of the agroecosystems of China.
	www.emergysystems.org /reprints.php (6422 words)

	Sustainable Energy - WWW Links
		Hemispheric Experiences in Energy Efficiency and Renewable Energy The Hemispheric Energy Symposium, held in October 1995, was a follow-up to the Summit of the Americas.
		Massachusetts Division of Energy Resources Descriptions of grants, legislation filed to deregulate the electric utility industry in Massachusetts, and case studies of wind power and landfill gas installations are included on the Division of Energy Resources (DOER) Web server.
		TREC, the Toronto Renewable Energy Co-op is planing to erect a wind turbine in the Toronto area.
	www.appro.org /links.html (6229 words)

	SDRG - Division 3 - Concrete (Site not responding. Last check: 2007-10-14)
		The embodied energy of concrete has been estimated at 3 kWh/lb1 and 90% of this is attributable to the production of Portland cement.
		Although energy consumption has been reduced, comparing favorably to steel production, concrete production still exceeds the embodied energy of timber products.
		Due to its energy and resource conserving properties, use of concrete with pozzolan material is encouraged in projects that are Federally funded, and CDOT accepts it for both structural and paving applications.
	www.aiacolorado.org /SDRG/div03 (1264 words)

	Page 8 Introduction to PALACES For The PEOPLE - Environmentally Friendly, Ecologically Beneficial
		Embodied-Energy is a total of all the units of energy involved in creating and using building materials.
		Wood for example uses energy in gasoline to get logging crews to the forest and operate their machines.
		Palaces materials are weighed according to their embodied energy total as part of their whole lifetime service, and where lower embodied energy materials meets the high standards compared to other higher embodied energy materials, the lower one will be used.
	www.ecosyn.us /Welcome/03/Page_08.html (211 words)

Try your search on: Qwika (all wikis)