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Comparative evaluation for selected gas turbine cycles

Research Authors
Mohamed Elwardany, Abd El-Moneim M Nassib, Hany A Mohamed
Research Date
Research Year
2023
Research Journal
International Journal of Thermodynamics
Research Publisher
dergipark
Research Vol
26
Research Rank
3
Research_Pages
57 - 67
Research Website
https://dergipark.org.tr/en/pub/ijot/issue/81151/1268823
Research Abstract

The energy and exergy evaluation of simple gas turbine (SGT), gas turbine with air bottoming cycle (GT-ABC), and partial oxidation gas turbine (POGT) are studied. The governing equations for each cycle are solved using energy equation Solver (EES) software. The characteristics performance for selected cycles are discussed and verified with that obtained for available practical cycles (SGT, GT-ABC, POGT). The present results show a good agreement with the practical one. The effects of significant operational parameters, turbine inlet temperature (TIT), compression ratio (CR), and compressor inlet temperature (CIT), on the specific fuel consumption, energy and exergy efficiencies are discussed. According to the findings, a reduction in CIT and a rise in TIT and CR led to enhance energy and exergy efficiency for each configuration with different ranges. Results revealed that the GT-ABC and POGT cycles are more efficient than those of SGT at the same operational parameters. The energy and exergy efficiencies are 38.4%, 36.2% for SGT, 40%, 37.8 % for GT-ABC, and 41.6%, 39.3% for POGT. The POGT cycle has a better energy and exergy performance at a lower pressure ratio than the SGT and GT-ABC.

Research Rank
International Journal