Advanced exergetic evaluation of cogeneration and polygeneration systems

This chapter deals with advanced exergy-based modeling and analyses. Such advancement for exergoeconomic and exergoenvironmental analysis evaluates the interactions among components of the overall system, and the real potential for improving system equipment. Splitting the exergy destruction associated with every single equipment of an energy conversion system into endogenous/exogenous and avoidable/unavoidable parts has been considered. This chapter consists of definition of advanced exergy-based variables, methodology for spiriting variables, advanced exergy destruction level (EDL), exergy cost destruction level, and environmental impact of EDL representations, and two cogeneration case studies as numerical examples.