EXERGO-ENVIRONMENTAL ANALYSIS FOR A 350 MW STEAM POWER STATION

Abstract

ABSTRACT

In this work, exergetic parameters for steam power plant components are established to recognize the impact of those components on the environment during their operation. Beside the exergetic efficiency, other parameters are introduced for the analysis, such as the exergy destruction factor, environmental destruction coefficient, environmental destruction index and environmental benign index. The obtained figures (numbers) of those parameters are significant for the time being when a comparison evaluation is to be made to recognize the impact of those components on the environment, which is the main objective of this work. To highlight the foregoing approach, a steam power plant of 350 MW is selected for the analysis. The main components of the plant are: a steam generator, a re-heater, steam turbines, high and low pressure feed-water heaters, a deaerator, a condenser and pumps. The results show that the steam generator, re-heater and condenser have the largest environmental impacts