Results 51 to 60 of about 99 (86)
Some of the next articles are maybe not open access.
The performance of a high-frequency thermoacoustic-Stirling engine
The Journal of the Acoustical Society of America, 2003A thermoacoustic-Stirling engine that operates at 400 Hz with a working fluid of 1-MPa helium is constructed. For proper acoustic phasing in this engine’s regenerator, an acoustic power feedback path exists in the form of an annulus surrounding the regenerator. This feedback path is obtained by suspending an insulated, stainless steel sleeve containing
Kevin J. Bastyr, Robert M. Keolian
openaire +1 more source
Low temperature differential thermoacoustic Stirling engine
Applied Physics Letters, 2010To what extent can we lower the critical temperature ratio (CTR) necessary to start a thermoacoustic engine? We present an experimental method for predicting the CTR before the temperature ratio arrives at it using quality factor measurements. Based on the experimental quality factors, we tried to decrease the CTR of a thermoacoustic Stirling engine ...
Tetsushi Biwa +2 more
openaire +1 more source
A pistonless Stirling engine—A new direction in thermoacoustics
The Journal of the Acoustical Society of America, 1999Due to its thermodynamic reversibility, the Stirling cycle has an inherent advantage in thermal efficiency over the standard, irreversible standing-wave thermoacoustic cycle. The main disadvantage of the Stirling cycle has been the need for high-pressure, sliding piston seals. Building significantly on the ideas of Ceperley [J. Acoust. Soc. Am.
Scott N. Backhaus, Gregory W. Swift
openaire +1 more source
Study of a thermoacoustic-Stirling engine connected to a piston-crank-flywheel assembly
The Journal of the Acoustical Society of America, 2021This paper deals with the theoretical description of self-sustained oscillations resulting from the coupling of a piston-crank-flywheel assembly with a thermoacoustic-Stirling prime mover. The governing equations of the piston-flywheel motion are coupled to those of the thermoacoustic system, which is described in the time domain through a rational ...
Guillaume, Penelet +2 more
openaire +2 more sources
A numerical simulation method and analysis of a complete thermoacoustic-Stirling engine
Ultrasonics, 2006Thermoacoustic prime movers can generate pressure oscillation without any moving parts on self-excited thermoacoustic effect. The details of the numerical simulation methodology for thermoacoustic engines are presented in the paper. First, a four-port network method is used to build the transcendental equation of complex frequency as a criterion to ...
Hong, Ling, Ercang, Luo, Wei, Dai
openaire +2 more sources
Experimental study on a wet thermoacoustic Stirling engine for water pumping
Applied Thermal EngineeringShijie Sheng
exaly +2 more sources
High-Power Thermoacoustic Stirling Heat Engine Results
9th Annual International Energy Conversion Engineering Conference, 2011We are developing a thermoacoustic Stirling heat engine (TASHE) to drive a pulse tube refrigerator (PTR) and electrical linear alternator for instrument cooling and power generation on a Venus lander. The TASHE will produce acoustic (PV) power and deliver it both to the linear alternator to generate electrical power and to the PTR to generate ...
Mark Haberbusch, Chinh Nguyen
openaire +1 more source
A high performance thermoacoustic Stirling-engine [PDF]
, 2011 In thermoacoustic systems heat is converted into acoustic energy and vice versa. These systems use inert gases as working medium and have no moving parts which makes the thermoacoustic technology a serious alternative to produce mechanical or electrical power, cooling power, and heating in a sustainable and environmentally friendly way.
Spoelstra, S., Tijani, M.E.H.
openaire
The use of parallel-plate regenerators in thermoacoustic-Stirling engines
The Journal of the Acoustical Society of America, 2001The regenerator is a key element in a thermoacoustic-Stirling engine. Typically, it is made by stacking up many layers of fine-mesh stainless-steel screen. With a high heat capacity and a typical pore size much smaller than the thermal penetration depth, it provides a nearly isothermal environment at the acoustic frequency.
Scott Backhaus, Gregory W. Swift
openaire +1 more source
Thermoacoustic Stirling engines: A review
International Journal of Green Energy, 2022Shahryar Zare +3 more
openaire +1 more source