Emergy and emergy algebra explained by means of ingenuous set theory

Autor:	E. Tiezzi, Fabiana Morandi, Riccardo Pulselli, Tommaso Flaminio, Simone Bastianoni
Jazyk:	angličtina
Rok vydání:	2011
Předmět:	Exergy Co-product Emergy Emergy Algebra Feedback Ingenuous set theory Split Process (engineering) Ecological Modeling Set (abstract data type) Algebra Simple (abstract algebra) Product (mathematics) Systems ecology Set theory Mathematics
Zdroj:	Digital.CSIC. Repositorio Institucional del CSIC instname
Popis:	Emergy is an important concept that has originated several effects in ecology, systems ecology and sustainability science. Its communication, however, has always presented several problems, since it does not follow the same rules of conservation as other energy-based approaches. Attempts have been made to clarify emergy by means of more formal/mathematical approaches, but the problem persists. In this paper, we have introduced a view of emergy and of its algebra based on ingenuous set theory. By means of this simple tool, emergy can be defined as the set of solar exergy that is directly and indirectly necessary to make a product. The operation that correctly sums the emergy > carried> by the inputs to a process is the union. This definition and the operation of union are able to account for all the rules of emergy algebra. © 2011 Elsevier B.V.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::057e6d118dfd0723731780a870b75c2d http://hdl.handle.net/11365/7981 Zobrazit plný text záznamu