摘要：The purpose of this study is to analyze comparatively the performance of a boiler used in a coal fired thermal power plant, from exergoeconomic viewpoint. Firstly, thermodynamic models of the plants are developed based on second law of thermodynamics. Secondly design point performance analyses based on exergetic and exergoeconomic performance criteria such as cost of exergetic destruction, relative cost difference and exergoeconomic factor are performed for the boiler used in a 55 MW power plant using an example in order to make comprehensive evaluations. As a result, the outcomes of this study can provide a basis used for boiler performance analysis and improvement.
