Results 41 to 50 of about 192 (119)

Using a side-branched volume to tune the acoustic field in a looped-tube travelling-wave thermoacoustic engine with a RC load [PDF]

open access: yes, 2017
Travelling-wave thermoacoustic engine utilises a compact acoustic network to obtain a right time-phasing between the acoustic velocity and pressure oscillations within the regenerator to force gas parcels to experience a Stirling-like thermodynamic cycle.
Al-Kayiem, Ali   +3 more
core   +1 more source

Active control of thermoacoustic amplification in a thermo-acousto-electric engine

open access: yes, 2013
International audienceIn this paper, a new approach is proposed to control the operation of a thermoacoustic Stirling electricity generator. This control basically consists in adding an additional acoustic source to the device, connected through a ...
Guillaume Penelet   +7 more
core   +1 more source

Design of two-stage thermoacoustic stirling engine coupled with push-pull linear alternator for waste heat recovery [PDF]

open access: yes, 2015
Thermoacoustics is suitable technology for recovering waste heat and generating electricity. In this paper, a novel thermoacoustic electricity generator using a push-pull linear alternator is proposed.
Hamood, A, Mao, X, Jaworski, AJ
core   +1 more source

Numerical Investigation on Regenerative Heat-Driven Cryocoolers for Zero Boil-Off Storage of Liquid Hydrogen

open access: yes, 2022
Aiming at the zero boil-off demand of liquid hydrogen storage tank, this paper uses SAGE software to design and simulate 300 W @ 20 K regenerative heat-driven cryocoolers, verifying the principle feasibility of duplex free-piston Stirling cryocooler and ...
Sankar, Vigneshwaran   +8 more
core   +1 more source

Determination of the stability limit of a thermoacoustic engine by means of finite elements [PDF]

open access: yes, 2013
A finite element model is presented to obtain the stability limit of, as an example, 2D standing wave thermoacoustic engine. The stability limit is the required heating to obtain self-sustained (thermo)acoustic oscillations. The method used to obtain the
Wijnant, Ysbrand H.   +2 more
core  

Influence of the Thermal Properties of the Driving Components on the Performance of a Thermoacoustic Engine

open access: yes, 2009
Thermoacoustic energy conversion is based on the Stirling cycle. But rather than using pistons to create mechanical work, it utilizes sound waves. The most basic design of a thermoacoustic engine utilizes a simple resonance tube in which a regenerative ...
Jeffrey S. Vipperman   +2 more
core   +1 more source

Oscillatory flows in jet pumps: towards design guidelines for thermoacoustic applications [PDF]

open access: yes, 2016
Thermoacoustic engines are an interesting alternative to conventional heat engines (such as Stirling engines) due to the absence of moving parts in the hot region and the small temperature difference required to operate.
Oosterhuis, Joris, Oosterhuis, Joris P.
core   +1 more source

Energy conversion performance in looped and stirling traveling-wave and standing-wave thermoacoustic engines

open access: yes
This present study conducts a comprehensive comparison of looped traveling-wave thermoacoustic engines (TWTAEs) and Stirling TWTAEs using two- and three-dimensional (2D and 3D) time-domain models. These models, validated through comparisons with existing
Xu, Jingyuan   +6 more
core   +1 more source

Conceptual Design of a Small-scale Travelling-wave Thermoacoustic Stirling Cryocooler

open access: yes
Thermoacoustic machines have received increased interest since Sondhauss’ initial investigation into ‘thermoacoustic oscillations’ in 1850, due to their diminished environmental impact, and high reliability from the omission of moving parts.
Butson, Holly
core   +1 more source

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