Economic Analysis of Power Plants Under Different Loads Based on Structural Theory

2018 4th International Conference on Renewable Energy Technologies

Bu, Huanhuan^1 ; Wang, Pei-Hong^1 ; Shen, Farong^1

School of Energy and Environment, Southeast University, Nanjing, JIANGSU

210096, China^1

关键词: Coal-fired power plant;    Economical efficiency;    Performance analysis;    Production performance;    Structural theories;    Thermal power generating units;    Thermo-economic model;    Thermodynamic factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/168/1/012024/pdf
DOI  :  10.1088/1755-1315/168/1/012024

来源: IOP

【 摘 要 】

The economy analysis of coal-fired power plants is usually based on traditional thermal balance method, which only considers the thermodynamic factors but ignores the economic factors such as cost. In this paper, to have a more comprehensive and accurate evaluation on the production performance and economical efficiency of thermal systems, the cost analysis method based on the Structural Theory of Thermoeconomic is applied to a 300MW thermal power generating unit in Yunnan province. The thermoeconomic model and the exergetic cost model for the plant based on the Fuel - Product concept have been defined to quantify the productive interaction between different devices. By calculating the thermoeconomic cost of four typical different working conditions and analyzing the distributions and change rules of generating cost, the Structural Theory of Thermoeconomic is proved scientific and useful and offers a set of feasible and reliable analysis method for the performance analyses and improvement of power plants.