EXERGY ANALYSIS OF A STEAM POWER SYSTEM FOR POWER PRODUCTION

Abstract

The present study deals with an Analysis of power
generation systems are of scientific interest and also
essential for the efficient utilization of energy resources.
The most commonly-used method for analysis of an energyconversion process is the first law of thermodynamics.
Therefore, the effect of key parameters on the output power
and efficiency are so important. In this paper, the effects of
key parameters in both firs law and second law of
thermodynamics point of view have performed. It was
intended to determine unfavorable points from exergy
destruction concept using exergy analysis for steam power
plants cycle. Also, variation in efficiency and exergy
destruction is evaluated using variations of temperature of
high pressure steam, temperature of reheat, and condenser
pressure. The study of the effect of feed-water heaters
shows that increase in number of heaters up to 3 causes
increase in both first and second low efficiency, but further
increase has the reverse effect. The results show that boiler
has the greatest exergy destruction among the power plant
components.