Emergy Emergy Emergy refers to several concepts at the same time. It was originally coined by Dr. D.M. Scienceman in collaboration with the late Howard T. Odum as a means of making it distinct from other embodied energy methodologies. In this context, "emergy" is a contraction of the term "embodied energy". However Scienceman also used emergy to refer to the concept of energy memory, and H.T.Odum used it to mean both sequestered energy and emergent property of energy use. Some researchers maintain that it can be expressed as a scientific unit which is called the "emjoule", a contraction of "emergy joule". ...more on Wikipedia about "Emergy"
Emergy evaluation is an accounting system that has been continuosly developed by Howard T. Odum and colleagues around the world since the 1960s, but only became known by this term in the 80's. It is based on universal principles of ecological energetics and uses the Energy Systems Language to describe natural systems. Because it aims at synthesis and the unification of science, it is complex to understand, and currently rarely applied across all disciplines in the scientific community. Emergy accounting tries to provide a deeper understanding to the natural energy circles and a deeper level of challenge to current conceptions of sustainable living. Its concept can be seen as another way of measuring our needs, natural resources and wealth than the Ecological footprint-concept does. It is meant to provide a quantitative theory of qualitative value. It is a global, that is, noosphere, accounting system. ...more on Wikipedia about "Emergy Evaluation"
*Many 'hard-to-find' refernces can now be found and purchased from the Emergy Systems website. ...more on Wikipedia about "Emergy Synthesis"
Energetics is the scientific study of energy flows under transformation. Because energy flows at all scales, from the quantum level, to the biosphere and cosmos, energetics is therefore a very broad discipline, encompassing for example thermodynamics, chemistry, biological energetics, biochemistry and ecological energetics. Where each branch of energetics begins and ends is a topic of constant debate. ...more on Wikipedia about "Energetics"
(Energy Systems Language) * H.T.Odum (1971) Environment, Society and Power, Wiley Interscience. ...more on Wikipedia about "Energy Systems Language"
The concept of maximum power has been proposed as the fourth principle of energetics and open system thermodynamics. As noted by Chen, this was tentatively proposed first by Alfred J. Lotka (1922a, b). It was subsequently developed the Systems Ecologist Howard T. Odum and the Engineer Myron Tribus, who was given the Alfred Noble Prize as a joint award from seven societies. It follows similar observations (made by Leibniz and Volterra for example), throughout the history of natural philosophy . H.T.Odum based the principle on the maximum power theorem, a result in electrical power systems, however he used it as a principle which quantitatively described the law of biological evolution. The word ' power' is defined energetically, as the rate of useful energy transformation. The concept of maximum power can therefore be defined as the maximum rate of useful energy transformation ...more on Wikipedia about "Maximum power principle"
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