Sensitivity Analysis of a 50+ Coal-Fired Power Unit Efficiency

作     者：Katarzyna Stepczyńska-Drygas Slawomir Dykas Krystian Smolka 

作者机构：Institute of Power Engineering and TurbomachinerySilesian University of TechnologyGliwicePoland 

出 版 物：《Journal of Power and Energy Engineering》 (电力能源（英文）)

年 卷 期：2015年第3卷第12期

页      面：19-31页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

基　　金：The results presented in this paper were obtained from research work co-financed by the Polish National Centre of Research and Development in the framework of Contract SP/E/1/67484/10—Strategic Research Programme—Advanced technologies for energy generation:Development of a technology for highly efficient zero-emission coal-fired power units integrated with CO2 capture 

主　　题：Sensitivity Analysis A-USC Power Unit Efficiency CO_(2) Capture 

摘      要：The coal-fired power unit integration with a CO2 capture and compression installation involves a considerable rise in the costs of electricity generation. Therefore, there is a need for a continuous search for methods of improving the electricity generation efficiency in steam power plants. One technology which is especially promising is the advanced ultra-supercritical (A-USC) power unit. Apart from steam parameters upstream the turbine, the overall efficiency also depends on the efficiency values of individual elements of the plant and the size of energy consumption of the process of CO2 sequestration from the boiler flue gases. These problems are considered herein to emphasize that without specifying the efficiency values of the power plant main elements the information concerning its electricity generation efficiency is incomplete. This paper presents the influence of the efficiency of individual elements of the power plant on its electricity generation efficiency. The lack of information of the efficiencies of the power plant individual elements, by presenting its overall efficiency, may lead to the false conclusions.