Results 21 to 30 of about 2,216 (204)
Jet pumps for thermoacoustic applications: design guidelines based on a numerical parameter study [PDF]
, 2015 The oscillatory flow through tapered cylindrical tube sections (jet pumps) is characterized by a numerical parameter study. The shape of a jet pump results in asymmetric hydrodynamic end effects which cause a time-averaged pressure drop to occur under ...
ANSYS +8 more
core +4 more sources
A numerical investigation on the vortex formation and flow separation of the oscillatory flow in jet pumps [PDF]
, 2015 A two-dimensional computational fluid dynamics model is used to predict the oscillatory flow through a tapered cylindrical tube section (jet pump) placed in a larger outer tube.
ANSYS +8 more
core +3 more sources
Thermoacoustic waste heat recovery engine. Comparison of simulation and experiment [PDF]
The Journal of the Acoustical Society of America, 2018 A thermoacoustic engine heated with a 10–20 kW 600C waste heat exhaust stream was designed and built. The heat is extracted from the exhaust with a microchannel counter flow heat exchanger and delivered to the hot side of the regenerator with a self-ciculating loop. This loop is driven using Venturi driven streaming of the helium working gas so that no
Maarten Elferink, Thomas Steiner
openaire +1 more source
Авіаційно-космічна техніка та технологія, 2020 The problem of utilization of low-potential thermal emissions of the Power plants of industry, transport, energy, with the help of thermoacoustic energy-saving systems may be solved.
Владимир Владиславович Коробко
doaj +1 more source
Encapsulated thermoacoustic projector based on freestanding carbon nanotube film [PDF]
, 2017 A suspended nanotube film (or films) producing sound by means of the thermoacoustic (TA) effect is encapsulated between two plates, at least one of which vibrates, to enhance sound generation efficiency and protect the film.
Aliev, Ali E., Baughman, Ray H.
core +1 more source
Case Studies in Thermal Engineering, 2020 Traveling wave thermoacoustic-Stirling heat engine is a unique device that is used to convert heat energy to acoustic work. In this article, the thermoacoustic engine is modeled, manufactured and tested.
Mahesh Krishna Gaikwad, Pradeep A. Patil
doaj +1 more source
Accounting for convective effects in zero-Mach-number thermoacoustic models [PDF]
, 2014 This paper presents a methodology to account for some mean-flow effects on thermo-acoustic instabilities when using the zero-Mach-number assumption. It is shown that when a computational domain is represented under the M=0 assumption, a nonzero-Mach ...
Bloxsidge +48 more
core +5 more sources
Heat-driven Thermoacoustic Cooling Technology: A Review and Perspective
Zhileng xuebao, 2022 Heat-driven thermoacoustic cooling technology utilizes the acoustic power generated by a thermoacoustic engine to drive a thermoacoustic cooler to realize thermal–acoustic–cooling energy conversion.
Xu Jingyuan, Luo Ercang
doaj
AIP Advances, 2021 As suggested by much smaller microscopic Carnot efficiency of a transversely oscillating gas-parcel in a thermoacoustic engine than macroscopic Carnot efficiency of the whole stack, the Lagrangian microscopic energy efficiency of a gas parcel is ...
Kyuichi Yasui
doaj +1 more source
Study of Standing-Wave Thermoacoustic Electricity Generators for Low-Power Applications
Applied Sciences, 2018 This paper is concerned with the study of low-cost, low-power thermoacoustic electricity generators. Based on target electrical output power values of 50 and 100 W, three standing wave prototypes (of both one-stage and two-stage prototypes) integrating a
Antonio Piccolo
doaj +1 more source