Abstract
Exergy is a thermodynamic metric that represents the amount of useful energy one can obtain out of an object in a given reference environment. The exergy concept is used in several applications: from the analysis of industrial processes to economic, sustainability and ecosystem analysis. In this chapter, the focus is on cumulative exergy consumption (CExC) methods used in sustainability assessment. Since these methods account consistently for the total resource intake, they are often used as measure for environmental impacts, mainly of resource consumption.
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