Significant performance enhancement of microturbines is predicted by implementing various wave-rotor-topping cycles. Five different advantageous cases are considered for implementation of a four-port wave rotor into two given baseline engines. In these thermodynamic analyses, the compressor and turbine pressure ratios and the turbine inlet temperatures are varied, according to the anticipated design objectives of the cases. Advantages and disadvantages are discussed. Comparison between the theoretic performance of wave-rotor-topped and baseline engines shows a performance enhancement up to 34%. General design maps are generated for the small gas turbines, showing the design space and optima for baseline and topped engines. Also, the impact of ambient temperature on the performance of both baseline and topped engines is investigated. It is shown that the wave-rotor-topped engines are less prone to performance degradation under hot-weather conditions than the baseline engines.
Performance Enhancement of Microturbine Engines Topped With Wave Rotors
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Akbari, P., Nalim, R., and Müller, N. (December 13, 2004). "Performance Enhancement of Microturbine Engines Topped With Wave Rotors." ASME. J. Eng. Gas Turbines Power. January 2006; 128(1): 190–202. https://doi.org/10.1115/1.1924484
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