On methodology of optimisation for irreversible Carnot-like power plant

Abstract

AbstractThis paper presents a methodology of optimisation that analyses a stationary Carnot-like power plant model with three sources of irreversibilities. The methodology is based on expressing several objective functions (operation regimes) that can be applied to any objective function expressed as algebraic combinations of power and/or efficiency. The optimisation of any characteristic parameter different to the isentropic temperature ratio x is independent of the heat transfer law. The efficiencies at maximum of each one of these operation regimes are calculated with respect to x by the substitution of an optimal value (different to x) in an objective function (power) and heat transfer law (power and conduction) since they are the simplest. The isentropic temperature ratios are adapted or calculated from the current literature. A total criterion of the ecological coefficient of performance and efficiency is demonstrated. Moreover, this methodology is further demonstrated and applied to a thermoeconomi...