Fugas de calor y aprovechamiento de efluentes en la optimización de ciclos Brayton totalmente irreversibles

Abstract

Optimization of maximum power and minimum rate of entropy generation is performed on a complete and realistic Brayton cycle--irreversible components, dissipative flows, power consumption on fluids movement, heat exchange through finite temperature gradients, heat leaks, and effluents unrecovered exergy-. The sets of values that produce optimum objective results are determined using fixed design parameters and variables under typical operational ranges. This work analyzes the heat leaks and effluents exergy recovery level on the optimizing set and on the system behavior. An illustrative example is presented as a study case, showing difficult-to-predict performances. This article illustrates a method which can be implemented in a computer and allows to asses existing systems and upgrade designs.