Energy and Exergy Analysis of the Strayton Generator Quad Configuration for Performance Optimization

Document Type

Conference Paper

Publication Date

2025

Publication Title

Proceedings of ASME Turbo Expo 2025: Turbomachinery Technical Conference and Exposition, GT2025

Abstract

Researching combined cycles is essential for advancing turbo/hybrid-electric propulsion systems because they enhance energy efficiency, allowing engines to attain higher performance with less fuel and emissions. Using energy and exergy analyses, the effect of irreversibilities that occur throughout the Brayton portions of the Strayton Generator Quad Configuration are quantified. This analysis models He-Ar gas as the working fluid, incorporating 80% effective coolers and recuperator. It considers turbine and compressor efficiencies ranging from 50% to 95%, turbine inlet temperatures ranging from 1373.15 K to 2073.15 K, and pressure ratios spanning from 1.25 to 2.5. As a result of these variations, the analysis identifies key sources of useful energy loss and provides a systematic thermal evaluation of the system. By inputting specific operating parameters, this evaluation can generate corresponding performance results, making it directly applicable to defined operating conditions.

Comments

Paper presented at:  
Turbomachinery Technical Conference & Exposition, Memphis, TN, JUN 16-20, 2025

DOI

10.1115/GT2025-151501

Volume

4

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