Results 31 to 40 of about 11,617 (186)
AIP Advances, 2019 Stacks are among the most important devices for influencing the energy-conversion efficiency of work flow to heat flow during thermoacoustic phenomena. An optimal stack design is indispensable for the practical application of thermoacoustic systems.
Shin-ichi Sakamoto +2 more
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Study on Working Fluids Testing and Multiphase Flow Model Optimization in Thermoacoustic Engines [PDF]
E3S Web of ConferencesThis study investigates the impact of different working fluids on the performance of non-phasechange thermoacoustic engines and compares the application of two multiphase flow models in phasechange thermoacoustic engines. Simulation results show that, at
Xie Jiutian, Ren Fan, Yang Jiale
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Simplification of sound-pressure characteristics using narrow flow channels subject with temperature gradient [PDF]
MATEC Web of Conferences, 2018 A thermoacoustic engine is one of promising system for utilization of unused energy. The object of this paper is to study the system of unused energy, such as heat energy and sound energy in noise using thermoacoustic engine. The thermoacoustic engine is
Kyoden Tomoaki
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Mitigation of artifacts due to isolated acoustic heterogeneities in photoacoustic computed tomography using a variable data truncation-based reconstruction method [PDF]
, 2017 Photoacoustic computed tomography (PACT) is an emerging computed imaging modality that exploits optical contrast and ultrasonic detection principles to form images of the absorbed optical energy density within tissue.
Anastasio, Mark A. +4 more
core +2 more sources
Sampling in thermoacoustic tomography [PDF]
Journal of Inverse and Ill-posed Problems, 2020 AbstractWe explore the effect of sampling rates when measuring data given byMffor special operatorsMarising in Thermoacoustic Tomography. We start with sampling requirements onMfgivenfsatisfying certain conditions. After this we discuss the resolution limit onfposed by the sampling rate ofMfwithout assuming any conditions on these sampling rates.
openaire +3 more sources
Numerical analysis of a standing-wave thermoacoustic refrigerator by one-dimensional simulation
Nihon Kikai Gakkai ronbunshu, 2018 In this paper, a numerical simulation for a standing-wave thermoacoustic refrigerator using the equations of conservation law are proposed. In this simulation, the gas flow in the thermoacoustic refrigerator is expressed by the quasi one-dimensional ...
Rin IRIE +4 more
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Advanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Influence of Working Conditions on Parameters of Thermoacoustic Engine with Travelling Wave
Archives of Acoustics, 2020 Thermoacoustic converters are devices for direct conversion of acoustic energy into thermal energy in the form of temperature difference, or vice versa – for converting thermal energy into an acoustic wave.
Andrzej Bogdan DOBRUCKI +1 more
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Aerospace, 2021 In the present work, 3D Unsteady Reynolds-Averaged Navier-Stokes (URANS) simulations are performed to investigate the generation and mitigation mechanism of combustion-sustained thermoacoustic instabilities in a modelled swirl combustor.
Yuze Sun, Dan Zhao, Xiaowei Zhu
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Dimensionless scaling of heat-release-induced planar shock waves in near-critical CO2
, 2017 We performed highly resolved one-dimensional fully compressible Navier-Stokes simulations of heat-release-induced compression waves in near-critical CO2. The computational setup, inspired by the experimental setup of Miura et al., Phys. Rev.
Ismail A. F. +4 more
core +1 more source