Circular exergy-based analytical investigation and optimization of the relationship between the production and energy consumption in foundries

Since the conflict between the economical development and the ecology renders it intolerably difficult to sustain natural resources, the energy efficiency became one of the most important global headlinese. This fact was amplified during the 2008 economical crisis. The basic reason appears to be the economy?s mostly dealt terminology, namely efficiency, which is defined on a single variable with the perception of budget control by embedding more work over one unit of time. This approach poses an important threat on resource, since 2008 crisis. The scarcity of global cash flow during that period reasoned the flucuiation over unit prices of natural resources and revealed that the effiecent service/production is not possible only by embedding more work on a unit of time. In this thesis, a new-generation analysis tool and methoology have been developed in order to reverse this condition covering the analysis of the relation between the production and the energy comsumption required for production, interpretation, and optimization of the correlations between those variables. The objective is to embed more useful work on a unit of natural resource counsumed per unit time bu using integrated design approach. This tool has been applied to a pilot metal casting industry selected in Ankara for demonstration purposes of the new metodology. With main empasis on operational research on the circular economy and exergy, the model returns the maximum production value per useful work potentialy of a single unit of the natural resource used.