Open AccessPerformance Analysis of Combined Cycles: Steam Recompression vs Conventional Bottoming Cycles
Author(s) -
Carlo N. Grimaldi,
Umberto Desideri
Publication year - 1994
Language(s) - English
Resource type - Conference proceedings
DOI - 10.1115/94-gt-437
Subject(s) - heat recovery steam generator , gas compressor , combined cycle , steam turbine , nuclear engineering , rankine cycle , surface condenser , steam injection , steam electric power station , heat transfer , boiler (water heating) , thermodynamics , mass flow rate , environmental science , turbine , superheated steam , petroleum engineering , engineering , waste management , mechanical engineering , power (physics) , physics
A performance analysis was fulfilled to compare the steam recompression with the conventional single and dual-pressure bottoming cycles. The optimal parameters for each cycle were found in order to maximize the exergetic efficiency. Heat transfer surface was also calculated to show the differences in the size of the heat recovery steam generator which have a direct influence on the plant's costs. The optimal configurations for each cycle were also studied when steam injection is employed. The relative performance when steam extraction is varied between 0 and 20% of the gas turbine's compressor inlet mass flow rate, was also examined