EVOLUTION of the Pressure Wave Supercharger Concept

Costiuc, Iuliana; Chiru, Anghel

doi:10.1088/1757-899x/252/1/012081

Cited by 5 publications

(10 citation statements)

References 4 publications

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“…The basic operating principle consists of transferring energy throughout shock and expansion waves, which act along the circumferentially arranged channels within the cylindrical rotor, also called the "cell wheel". The rotor moves between two stator endplates, provided with openings (ports) that let the fluids circulate: the exhaust gas at one end and air at the other, putting them into direct contact and interaction [6]. The rotor channels are periodically exposed to the air and gas inlet and outlet ports, triggering the generation of expansion and compression waves.…”

Section: Operating Principlesmentioning

confidence: 99%

“…The technology has the po to increase thermodynamic efficiency and reduce global energy consumption. wave rotors have been applied in various fields, such as gas turbines [1,2], micr ultra-micro gas turbine topping cycles [3,4], wave rotor turbine engines [5], pr wave superchargers for internal combustion engines (ICE) [6,7], and rotary therm arators, such as wave rotor refrigerators [8,9], as summarized in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

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A Review of Engine’s Performance When Supercharging by a Pressure Wave Supercharger

2022

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Improving the performance of internal combustion engines (ICE), together with lowering emissions, are the main targets for specialists in the automotive field. One option for increasing engine efficiency is creating a considerable amount of boost for the inlet combustion air by means of supercharging. In addition to common turbochargers, an alternative solution that has interested researchers for almost a century is the pressure wave supercharger (PWS). This paper is, at first, a complimentary tribute to most of the researchers that studied, experimented with and improved PW supercharging technology from the 50′s to the present. Second, this review emphasizes the performance achieved by ICEs when using PW supercharging, highlighting the limits of these main parameters in different operating conditions, based on the main reported results in the literature. It also provides an overview of PW supercharging technology, with its main advantages and disadvantages and suggests some technical solutions or geometric adjustments to improve its operation. Even though in recent years this technology has registered a decrease of interest, there are still preoccupations, especially in the aeronautical industry, justified by the profitability and simplicity of PW devices. The results of this theoretical work can be exploited practically in PWS design and applications.

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Section: Operating Principlesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Review of Engine’s Performance When Supercharging by a Pressure Wave Supercharger

2022

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“…The numerical modelling used a 3D CFD model using FEM for PWS [4]. The 3D approach showed the distribution of the velocity, pressure and temperature field in the entire modelled volume.…”

Section: Numerical Modelmentioning

confidence: 99%

Investigations of pressure field along a channel of a pressure wave supercharger

Costiuc

Chiru

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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The aim of the paper is a numerical investigation of the evolution of the pressure field along the wave rotor channels of a pressure wave ICE supercharger. In the present literature, most of the studies are considering the fluids as incompressible and inviscid in a 2D field. The present study is using the compressible and viscous terms in the unsteady Lattice Boltzmann method for fluid in a 3D field. The geometry was drawn in CAD software using measurements made on a real model of the CX-93 pressure wave supercharger. The simulation was conducted using a code for native unsteady LBM approach to reproduce data such as pressures, temperature and mass flows, which are usually hard to be measured in a real pressure wave supercharger. The computational domain was modelled as a moving rotational domain with adaptive refinement. Results such as velocity, pressure and temperature field in the rotor channels were obtained for exhaust gas inlet pressure of 0.292 MPa and 721 K temperature at different rotational speeds. The air inlet state considered was: 0,096 MPa and 313 K. The simulated values obtained are similar to the reported experimental results found in the literature showing a good concordance with the model.

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“…The commercially most successful and most mature technology using wave rotor technology is as a supercharging device for ICE [13][14][15]. In a similar fashion to classical turbomachinery, the pressure wave supercharger uses waste heat to pressurise the intake charge.…”

Section: Introductionmentioning

confidence: 99%

“…In a similar fashion to classical turbomachinery, the pressure wave supercharger uses waste heat to pressurise the intake charge. The review done by Costiuc and Chiru [14] concludes that compared with turbocharging the pressure wave supercharging delivers rapid transient response and self-cooling capabilities but suffers severely from insufficient sealing and thermal expansion. Application of wave rotors to gas turbines as a topping device has received considerable attention as well.…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical assessment of an optimised, non-axial wave rotor turbine

Tüchler

Copeland

2020

Applied Energy

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EVOLUTION of the Pressure Wave Supercharger Concept

Cited by 5 publications

References 4 publications

A Review of Engine’s Performance When Supercharging by a Pressure Wave Supercharger

A Review of Engine’s Performance When Supercharging by a Pressure Wave Supercharger

Investigations of pressure field along a channel of a pressure wave supercharger

Experimental and numerical assessment of an optimised, non-axial wave rotor turbine

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