Archives of Acoustics, 2021 The reflection coefficient of the open end belongs among the essential parameters in the physical description of a flue organ pipe. It leads directly to practical topics such as the pipe scaling.
Viktor HRUŠKA, Pavel DLASK
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Radiometric Constraints on the Timing, Tempo, and Effects of Large Igneous Province Emplacement
Geophysical Monograph Series, Page 27-82., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jennifer Kasbohm +2 more
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Transient behavior of flue organ pipes. [PDF]
The Journal of the Acoustical Society of America, 1992 In earlier studies by Fletcher [Acustica 34, 224–233 (1976)], Nolle [J. Acoust. Soc. Am. 66, 1612–1626 (1979)], and Angster and Miklos [Proc. 13th Int. Conf. on Acoust., Vol. 3, 99–101 (1989)] crucial parameters determining the transient behavior of a flue organ pipe have been identified.
A. Hirschberg +2 more
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Archives of Acoustics, 2015 The paper presents experimental results of the visualization of the nonlinear aeroacoustic sound generation phenomena occurring in organ flue pipe. The phase-locked particle image velocimetry technique is applied to visualize the mixed velocity field in ...
Witold MICKIEWICZ
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Role of the foot chamber in the sounding mechanism of a flue organ pipe
Acoustical Science and Technology, 2019 Toshiya Takami, Kin'Ya Takahashi
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An experimental study of the oscillations in a flue organ pipe [PDF]
The Journal of the Acoustical Society of America, 1990 Stationary oscillations of a simple flux-type organ pipe have been studied. Internal acoustical pressure measurements in combination with modification of pipe geometry indicate that the sound source at the labium is a dipole. This observation is explained by Coltman's analysis [J. Acoust. Soc. Am. 60, 725–733 (1976)].
A. P. J. Wijnands +5 more
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Investigation of the Sound Source Regions in Open and Closed Organ Pipes
Archives of Acoustics, 2019 The airflow in the mouth of an open and closed flue organ pipe of corresponding geometrical proportions is studied. The phase locked particle image velocimetry with subsequent analysis by the biorthogonal decomposition is employed in order to compare the
Viktor HRUŠKA, Pavel DLASK
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Tone Production in the Organ Flue Pipe [PDF]
The Journal of the Acoustical Society of America, 1955 A number of measurements have been made of middle C open diapason organ pipes during variation of the voicing adjustments. The effect on the spectrum and on the initial transient of alterations in height of mouth, languid setting, and wind pressure are presented. The effect of nicking is shown to be a decrease in the random noise background.
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Catalytic Oxidation of CO and VOC in Flue Gas of Coffee Roasting Machines
Chemie Ingenieur Technik, EarlyView.Platinum‐coated cordierite monoliths effectively oxidized CO and VOC in coffee roasting exhaust with higher Pt loadings lowering light‐off temperatures. Scaled up 90 g/ft3 catalyst in a 5 kg roaster achieved 96% CO and around 78% VOC conversion at 350°C, highlighting stable operation requires flue gas temperatures ≥350°C.
Till Hauswald +3 more
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Selective Non‐Catalytic Reduction of NOx in the Exhaust Gas of Small Wood Gasification Boilers
Chemie Ingenieur Technik, EarlyView.Kinetic studies of the SNCR reaction were conducted to investigate NOx reduction in the exhaust gas of small‐scale wood gasification boilers. Both the experimental results and the derived global kinetic model indicate that SNCR can achieve a significant reduction in NOx emissions under typical operating conditions. ABSTRACT The gas‐phase reaction of NO
Alexander Groß, Sven Kureti
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