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	Exergy - Wikipedia, the free encyclopedia
		Exergy is a measure of the potential of a system to cause a change as it achieves equilibrium with its surroundings.
		Exergy is a measurable value that is decreased during the conversion of useful energy to useless energy.
		Exergy is the work that can no longer be done elsewhere because the economic good was made.
	en.wikipedia.org /wiki/Exergy (5221 words)

	Exergy (Site not responding. Last check: 2007-10-20)
		Exergy in the presence of an infinite atmosphere.
		Exergy is always related to a non-equilibrium system, but most of the times it is related to a system at equilibrium ‘in the presence of an environment not in mutual equilibrium’, i.e.
		Most of the times, the exergy of a state is referred to the dead state of equilibrium between the system and the atmosphere, a kind of absolute exergy for the universe considered, but we still keep the increment symbol to remind that it is a state function.
	imartinez.etsin.upm.es /bk3/c03/Exergy.htm (2792 words)

	physics - Exergy
		Exergy is the maximum amount of work that can be extracted from a physical system by exchanging matter and energy with large reservoirs in a reference state.
		Maximal possible conversion of heat to work, or exergy content of heat, depends on the temperature at which heat is available and the temperature level at which the reject heat can be disposed, that is the temperature of the surrounding.
		In practice, exergy is determined by use of the state equations of the material or materials of the body, or pre-calculated tables.
	www.physicsdaily.com /physics/Exergy (1097 words)

	Exergy LLC - Miniature Heat Exchangers - Component Database
		Exergy LLC is a manufacturer of stainless steel miniature heat exchangers.
		Exergy, LLC manufactures a broad line of stainless steel (316L) miniature heat exchangers, one of which is sure to fit your heat transfer application.
		Exergy's application engineers will help you to determine which heat exchanger best meets your requirements.
	www.medibix.com /company.jsp?company_id=44841 (184 words)

	Exergy efficiency - Wikipedia, the free encyclopedia
		Exergy efficiency is also called second-law efficiency because it computes the efficiency of a process taking the second law of thermodynamics into account.
		The energy E and exergy B balances of a process are:
		Efficiency η of the process may be described using the thermodynamic potentials E or B.
	en.wikipedia.org /wiki/Exergy_efficiency (330 words)

	Open Steady Systems - TEST Tutorial
		The variables displayed in the exergy panel are essentially different terms of the exergy balance equation for an open steady device exchanging heat with up to two TER's (thermal energy reservoir), one of which is the outside atmosphere.
		Most variables on the exergy panel are for output purpose only as indicated by the absence of checkbox in the variable widgets.
		The variables displayed in the exergy panel are essentially different terms of the exergy balance equation for a process executed by a closed uniform system while exchanging heat with up to two TER's (thermal energy reservoir), one of which is the atmosphere.
	www.usc.edu /mirror/testcenter/testhome/Test/intro/exExergyT.html (837 words)

	Exergy, Ecology and Democracy
		Exergy is a well-established concept in engineering, the awareness of the living nature and its behavior increases and new rules for management of people are successfully developed in Japan.
		Exergy from the contrast between the sun and space drives flows of energy and matter on the surface of the earth.
		But, the exergy as well as the stress on the environment is relatively small, thus, the company payees a relatively low tax on its waste flow to the environment.
	exergy.se /goran/eed (4662 words)

	measure of sustainability exergy
		The term "exergy" or absolute energy efficiency is used to define the combination of energy quantity (which is conserved according to the first law of thermodynamics) and energy quality (which is consumed according to the second law of thermodynamics).
		A critical examination of exergy as a measure of sustainability suggests that many of our so called labour saving devices are simply energy wasting gadgets that exacerbate the declining health and fitness of their users.
		Since many of the needed and welcome improvements in exergy efficiency will be derived from outside of the architecture field, it is important that architects are aware of appropriate energy sources, appliance and equipment selection.
	www.cdnarchitect.com /asf/perspectives_sustainibility/measures_of_sustainablity/measures_of_sustainablity_exergy.htm (607 words)

	What's New
		EXERGY is a consulting firm designed to capitalize on opportunities arising out of utility deregulation and global climate change in the energy and construction industry.
		EXERGY provides fast, flexible and professional services in the field of: technical, business and market planning, product development, field research, test and verification, licensing and commercialization and high impact sales and marketing.
		EXERGY and strategic partners combine forces to provide project management, field monitoring, application experience and energy simulation to evaluate technologies, verify savings, assess markets, or determine application feasibility.
	www.exergypartners.com /about.html (290 words)

	Sandia Labs proposes energy surety model \| EnergyBulletin.net \| Peak Oil News Clearinghouse (Site not responding. Last check: 2007-10-20)
		Exergy is energy available to do useful work, considering the energy available from a given source within its particular environmental surroundings [footnote 1].
		As an example, the exergy available from a given fuel may be greater in a location where plentiful cooling water makes it possible to generate electricity more efficiently.
		1 Exergy is a measure of the usefulness of a unit of energy.
	www.energybulletin.net /18195.html (2488 words)

	Exergy
		In physics, exergy is the maximal amount of work or electrical energy that can be extracted from a physical system.
		The term exergy used in connection with the Second Law of Thermodynamics.
		Maximal possible conversion of heat to work, or exergy content of heat, depends on the temperature at which heat is available and the temperature level at which the reject heat can be disposed.
	www.datamass.net /ex/exergy.html (310 words)

	Exergy Australia — Research, Technology and Program Development
		Exergy is committed to making cost effective energy savings a reality in the economy through the development of programs that overcome barriers and promote new approaches to energy efficiency.
		Exergy developed the technical basis of this scheme and continues to have a strong hand in its technical operation.
		Exergy stakeholder research was used to clearly identify the needs of the end-user group, which were then translated into a substantial, easy to use internet-based tool.
	www.xgl.com.au /products/research.html (513 words)

	exergy_analysis
		The exergy of a system is the maximum useful work that can be extracted from that system until it reaches equilibrium with its environment.
		Common irreversibilities are pressure drop during flow through valves, inefficiencies of the compressors, heat transfer from/to the adsorbent beds, mixing of gases within the adsorbent beds and tanks, and mixing of gas streams with the environment.
		While exergy calculations for many of these components can easily be done (and has been done in earlier studies), it is the exergy destroyed within the adsorbent beds that is of most interest to us since this feature will help guide cycle design.
	www-personal.monash.edu /~webley/exergy_analysis.htm (330 words)

	HyperEnergy: Exergy Theory
		Exergy exists in many different types of reservoirs from chemical potential stored in hydrocarbon bonds to the kinetic energy of the wind.
		Exergy flux is represented by paths ending in shaded areas of natural exergy destruction or arrows representing anthropogenic destruction for energy services.
		Concentration exergy is due to the relative abundance of species in a substance compared to the average concentration of those species in the reference state.
	www.stanford.edu /~weston/ExergyTheory.htm (1464 words)

	Site 01 Home Page
		EXERGY Partners is a consulting firm designed to capitalize on opportunities arising out of utility deregulation and global climate change in the energy and construction industry.
		EXERGY Partners has developed a client base working in the field of refrigeration and HVAC system integration and dehumidification technologies, and is taking a leadership role in the emergence of the integration of onsite power generation, energy recovery and thermal energy management.
		EXERGY Partners is providing strategic direction for this new building’s focused initiative on cooling, heat and power (CHP).
	www.exergypartners.com (210 words)

	Atkinson to form joint venture with Exergy Business Wire - Find Articles
		Exergy will supply its leading-edge Kalina Cycle technology which has been shown to improve power generating efficiency in typical utility plants by as much as 40 percent.
		Exergy, based in Hayward, California, was founded by its president and CEO, Dr. Alexander Kalina, a Russian scientist and inventor who devised the new technology.
		Exergy plans to utilize this grant in the development of the Steamboat Springs project, where Atkinson will act as project manager.
	www.findarticles.com /p/articles/mi_m0EIN/is_1995_June_22/ai_17115472 (449 words)

	The Exergy scan
		The Exergy Scan is a quick tool to estimate the fuel and feedstock losses within a plant and to suggest improvements to reduce these losses.
		Exergy has to be used to locate the losses of fuel and feedstock.
		Furthermore, the Exergy Scan gives an indication of the amount of exergy loss is relatively high or low for the component under consideration.
	www.exergie.nl /scan.html (343 words)

	Ask Leo - Sign Conventions in Exergy Analysis
		The direction of the exergy transfer depends on the temperature at which the heat transfer occurs relative to the temperature of the surroundings.
		The exergy transfer associated with shaft work at the boundary of a system has the same magnitude and direction as the shaft work itself.
		It may seem perfectly reasonable, therefore, to use the same sign convention for exergy transfer as for work: exergy transfer outwards would thus be positive according to the ‘Positive heat in, positive work out’ convention.
	www.simtherg.com /askleo5.html (610 words)

	Water Science & Technology 48:1 (2003) 27-36 - D. Hellstrm - Exergy analysis of nutrient recovery processes
		In an exergy analysis, the actual consumption of resources in physical and chemical processes is calculated.
		The exergy flows analysed in this paper are those related to management and treatment of organic matter and nutrients.
		The study shows that the total exergy consumption is lowest for the system with source separation of urine and faeces and greatest for the conventional wastewater treatment system complemented by processes for nutrient recovery.
	www.iwaponline.com /wst/04801/wst048010027.htm (166 words)

	WSEAS (Site not responding. Last check: 2007-10-20)
		Energy issues are particularly prevalent at present and exergy analysis appears to provide one key component of an effective sustainable solution.
		Exergy analysis is useful for improving the efficiency of energy-resource use, for it quantifies the locations, types and magnitudes of wastes and losses.
		In general, more meaningful efficiencies are evaluated with exergy analysis rather than energy analysis, since exergy efficiencies are always a measure of how nearly the efficiency of a process approaches the ideal.
	www.worldses.org /conferences/2006/greece/energy/plenary1.htm (394 words)

	MHI Exergy
		Exergy has to do with work potential or quality of the energy.
		When heat (thermal) energy is converted to work, the second law of thermodynamics states that not all of the heat energy can be converted to useful work.
		Most often, the higher the source temperature, the better the efficiency and exergy of a process.
	www.mhi-inc.com /Exergy.htm (290 words)

	Advanced Search Library
		The main objectives in carrying out the present study are twofold, namely to estimate the energy and exergy utilization efficiencies for the residential-commercial sector and to compare those of various countries with each other.
		The energy and exergy utilization efficiency values for the Turkish residential-commercial sector are obtained to be 55.58% and 9.33%, respectively.
		Besides this, Turkey's overall energy and exergy utilization efficiencies are found to be 46.02% and 24.99%, respectively.
	www.unfccc.int /essential_background/library/items/3599.php?rec=j&priref=200001731&data=&title=&author=&keywords=%22consumption%22&symbol=&meeting=&mo_from=&year_from=&mo_to=&year_to=&last_days=&anf=0&sorted=date_sort&dirc=DESC&seite=1 (179 words)

	Exergy
		The amount of energy in the universe remains constant (First Law), but exergy is constantly used up (Second Law).
		In the end (very long time from now), exergy is used up in the universe, and no processes can run.
		The energy of the universe is constant, but exergy is canstantly consumed.
	www.holon.se /folke/kurs/Distans/Ekofys/fysbas/exergy/exergybasics.shtml (322 words)

	.:: ERGO EXERGY TECHNOLOGIES, INC. - The only source for Underground Coal Gasification ::.
		Lawrence Livermore National Laboratory (LLNL) and Ergo Exergy are to co-operate in conducting research on underground coal gasification technology - specifically in the areas of process simulation and carbon sequestration - with an emphasis on evaluating the environmental performance of a large scale UCG operation.
		The parties have agreed on the terms of license to be acquired by GAIL from Ergo Exergy, and the GAIL board of directors has approved the terms and conditions of the license agreement the two parties have negotiated.
		Ergo Exergy projects and εUCG technology are discussed at an environmental seminar at the Laboratory for Energy and the Environment at Massachusetts Institute of Technology, sponsored by the MIT Coal Study.
	www.ergoexergy.com /news_recent.htm (631 words)

	HyperEnergy: Exergy Destruction
		Exergy is destroyed as exergy containing materials pass through our energy system, transferring their exergy to energy carriers, end use devices, and finally the evironment when the exergy is completely destroyed.
		This process of exergy destruction is what energy community analysts mean when they speak of energy consumption.
		The slightly larger exergy value results from the difference between the heating value and the gibbs free energy of a substance.
	www.stanford.edu /~weston/ExergyDestruction.htm (587 words)

	Fluent News - Fall 2005 - Distilling Exergy Savings
		At refineries, distillation is used to separate crude oil – a mixture of hydrocarbon compounds– into a number of constituents.
		Exergy, simply stated, is usable energy that can do work, and is a quantity that tends to decrease over time.
		It is emerging as an increasingly useful measure of efficiency as process improvements are considered through-out the refining industry [1].
	www.fluent.com /about/news/newsletters/05v14i3/a9.htm (580 words)

	Exergy Technologies Corporation :: Technologies & Services - Reverse Osmosis
		Membranes used in Exergy’s RO systems are manufactured from basic plastic polymers using proprietary formulations and processing steps to engineer the pore sizes depending upon the type of membrane desired.
		Exergy’s RO systems provide superior quality and performance for separation of water from dissolved solids.
		Exergy’s RO systems are custom designed and built to meet the customer’s specification and quality requirements.
	www.exergycorp.com /technologies/conventional_membrane_technologies/RO.asp (242 words)

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