Theoretical modeling of a steam power cycle using an interactive computational tool
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Lizarazo Bohórquez, Cristina | 2018-07
This paper presentsan energetic and exergetic analysis for ageneration of turbine work
according to the variation of the pressure in the condenser regenerative Rankine cycle, implementing an
educational graphical user interface known as Power Cycle version 2.0; that is used as a pedagogical
strategy in thefield ofengineering education. The mains objectives were, analyzethe efficiency of first and
second thermodynamic law, and the generation of turbine work according to the variation of
thecondenser pressure, at three different temperatures in the boiler, as well as analyzing the components
of the system to identify and quantify where the exergy destruction was maximum. According to the
results in the cases studied, the percentage ratio of the exergydestruction to the total exergy destruction
was found to be maximum in the boiler 62.18%, then the turbine 22.79%, and finally 15.03% in the
pumps, the heater and the condenser. On the other hand, the maximum calculated thermal efficiency was
38.34%, while the maximum exergetic efficiency was 62.81%. A significant increase in efficiency of the
cycle is obtained by decreasing the pressure in the condenser.
LEER
