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Outline

A Review of Wave Rotor Technology and Its Applications

2006, Journal of Engineering for Gas Turbines and Power-transactions of The Asme - J ENG GAS TURB POWER-T ASME

https://doi.org/10.1115/1.2204628

Abstract

The objective of this paper is to provide a succinct review of past and current research in developing wave rotor technology. This technology has shown unique capabilities to enhance the performance and operating characteristics of a variety of engines and machinery utilizing thermodynamic cycles. Although there have been a variety of applications in the past, this technology is not yet widely used and is barely known to engineers. Here, an attempt is made to summarize both the previously reported work in the literature and ongoing efforts around the world. The paper covers a wide range of wave rotor applications including the early attempts to use wave rotors, its successful commercialization as superchargers for car engines, research on gas turbine topping, and other developments. The review also pays close attention to more recent efforts: utilization of such devices in pressure-gain combustors, ultra-micro gas turbines, and water refrigeration systems, highlighting possible further efforts on this topic. Observations and lessons learnt from experimental studies, numerical simulations, analytical approaches, and other design and analysis tools are presented. Fig. 26 Historical perspective of wave rotor technology. Red: gas turbine application. Green: IC engine supercharging. Blue: refrigeration cycle. Pink: pressure divider and equalizer. Purple: wave superheater. Orange: internal combustion wave rotors. Black: general applications.

FAQs

sparkles

AI

What efficiency advantages do wave rotors provide over traditional compressors?add

Wave rotors can achieve shock isentropic efficiencies significantly exceeding typical compressor efficiencies, potentially achieving total efficiencies of up to 69% as shown in 1941-1943 testing.

How do four-port configurations enhance gas turbine performance?add

Four-port configurations improve thermal efficiency and specific work by achieving 15-20% higher turbine inlet pressure compared to traditional setups, as demonstrated in studies involving Allison model engines.

What are the key challenges facing wave rotor technology adoption?add

Mechanical challenges like sealing and thermal expansion limits have impeded commercial deployment, despite significant research progress and demonstrated advantages in efficiency and power output.

What role does channel geometry play in wave rotor operation?add

Channel geometry, such as straight versus curved designs, influences fluid dynamics within wave rotors, affecting pressure exchange efficiency and operational stability.

How has computational modeling advanced wave rotor research?add

Recent numerical simulations have allowed for accurate predictions of performance and loss mechanisms, enhancing our understanding of wave rotor designs and paving the way for practical applications.

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