基于热经济学会计模式亚临界600MW机组节能分析

以600 MW火力发电机组为例,利用热经济学会计模式建立机组热经济学成本模型。根据75%THA的设计和实验工况参数,进行热力学和热经济学指标计算,得出各子系统的火用效率和火用经济系数,并利用二者判别各子系统的节能潜力及是否进行改造。结果表明,6号低压加热器是节能改造的重点对象。

Analysis on the energy saving of a 600 MW subcritical unit based on accounting model of thermoeconomics

Based on the accounting modle of thermoeconomics,the thermoeconomic cost model was established to optimize a 600 MW thermal power plant.According to the parameters of experimental and design conditions of the 75%THA,the exergy efficiency and exergy economic coefficient of each subsystem were obtained by calculating the thermodynamics and thermoeconomics indicators.Then evaluated the energy-saving potential of these subsystems using the above-mentioned two coefficients and determined whether to improve subsystems.The results indicate that the NO.6 low-pressure heaters is the focus of energy-saving.