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Reducing Low Frequency Noise (LFN): Past and future technologies
This paper examines the escalating issue of low-frequency noise (LFN) pollution, which predominantly originates from man-made sources,...
Evaluation of the thermo-acoustic instability frequency and growth rate via input reflection coefficient measurement for central heating equipment
Experimental measurement methods and theoretical evaluations based on low-order modeling approaches for both the growth rate and...
Thermo-acoustic flame instability criteria based on upstream reflection coefficients
A prospective method to assess thermo-acoustic instabilities based on two reflection coefficients measured from the upstream side of the...
Intrinsic thermo-acoustic instability criteria based on frequency response of flame transfer function
A study of Intrinsic Thermo-Acoustic (ITA) instability behavior of flames anchored to a burner deck is performed by introducing a mapping...
Stability criteria of two-port networks, application to thermo-acoustic systems
System theory methods are developed and applied to introduce a new analysis methodology based on the stability criteria of active...
Theoretical and experimental investigation on the linear growth rate of the thermo-acoustic combustion instability
A systematic measurement of the linear growth rate and frequency of the oscillation at the onset of thermo-acoustic combustion...
Mobius transformation between reflection coefficients at upstream and downstream sides of flame in thermoacoustics systems
The document discusses a novel approach for analyzing and designing thermoacoustic stability in combustion systems using Möbius...
Designing an acoustic termination with a variable reflection coefficient to investigate the probability of instability of thermoacoustic systems
This paper presents results of the development of an acoustic device to be utilized as a duct termination with variable reflection...
Latest News
Dec 23, 20241 min read
Improving Acoustic Material Absorption
Many manufacturers and end users looking to eliminate annoying noise, particularly in the Low Frequency Noise (LFN) range, use acoustic...
News and Publications
Publications
Reducing Low Frequency Noise (LFN): Past and future technologies
This paper examines the escalating issue of low-frequency noise (LFN) pollution, which predominantly originates from man-made sources,...
Evaluation of the thermo-acoustic instability frequency and growth rate via input reflection coefficient measurement for central heating equipment
Experimental measurement methods and theoretical evaluations based on low-order modeling approaches for both the growth rate and...
Thermo-acoustic flame instability criteria based on upstream reflection coefficients
A prospective method to assess thermo-acoustic instabilities based on two reflection coefficients measured from the upstream side of the...
Patents
Patent family 3: Anechoic Broadband Compact (ABC) Muffler with Moving Blade and Vehicle Applications
The patented Anechoic Broadband Compact (ABC) Muffler introduces an ultra-thin design capable of mitigating noise across ultra-low to...
Patent family 2: Burner for Hydrogen-Rich Fuel-Air Premix Having Enhanced Thermo-Acoustic Stability
The patented muffler-burner design introduces an innovative dual-plate system to enhance thermo-acoustic stability in hydrogen-enriched...
Patent family 1: Anechoic termination for acoustic plane wave suppression
The design of a low-reflecting duct termination which performs in the low frequency range (20-800 Hz) is proposed, constructed, and...
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