Thermodynamic, economic and risk analysis concerning investment in a coal power plant working in the oxy-combustion technology
The idea of oxy-combustion is bringing of pure oxygen to the combustion chamber,in which carbonaceous fuel is combusted primarily into carbon dioxide and water vapour.As a result,an energy-intensive carbon dioxide capture installation is not required(as in the case of the conventional air-fired power plants).Oxy-combustion systems are termed as a prospective method of electricity production and research is still ongoing on this technology.Therefore,construction and operation of units working in oxy-combustion technology is associated with high risk,for example,connected with a lower than expected availability and/or production or higher than expected costs.Risk analysis associated with the construction of the oxycombustion power plants is the main objective of the work described in this paper.Conducting of risk analysis required building of a numerical model of an integrated oxy-combustion system and running of economic analyzes.The analyzed unit consisted of four technological systems: cryogenic oxygen production plant,supercritical pulverized-coal boiler,steam cycle and carbon dioxide conditioning system.Models were built in commercial programs GateCycleTM and Aspen,integrated in the Excel environment.For economic calculations an own computational code was used.In the economic analysis the BEP(Break Even Point)method was mainly used.The results of the economic analysis were used as input data for a risk analysis connected with the choice of investment.The paper presents the risk analysis method based on the determination of the so-called premium for the risk.The analysis took into account the European Emissions Trading Scheme(ETS),thus,the cost of CO2 emission allowances.The cost-effectiveness of the system design is determined mainly by the price of allowances but also by the auxiliary power of individual technological installations and by the method of consideration of a risk premium associated with the implementation of this technology.
Carbon Dioxide Capture Oxy-combustion Modelling Economic Evaluation Risk Analysis
Anna Skorek-Osikowska (L)ukasz Bartela Janusz Kotowicz
Institute of Power Engineering and Turbomachinery,Silesian University of Technology,Gliwice,Poland
国际会议
桂林
英文
1-13
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）