Optimization of Sonochemical Reactors by Measuring Impedance of Transducer and Sound Pressure in Solution
スポンサーリンク
概要
- 論文の詳細を見る
For any sonochemical process, the maximum effect depends on a range of conditions and the process optimization can lead to a considerable saving in the electric power. In this paper, the optimization work focuses on the acoustic features of the ultrasonic reactor such as the transducer impedance and the frequency components of sound pressure with respects to the reactor configuration, namely the liquid height and the upper end configuration for a cylindrically shaped sonochemical reactor. The measurements were carried out for the liquid heights varying in the range of 142 to 163 mm with and without an aluminum reflector mounted on the upper end of the liquid column for a ultrasonic frequency of 129 kHz. Our data revealed that the impedance of transducer and the sonochemical efficiency are strongly dependent on liquid height and on the upper part configuration of the reactor: free or fixed end. Moreover, the maximum sonochemical efficiency was attained at the liquid heights where the transducer impedance shows minimum values, the distance between two consecutive maxima being λ⁄2 (where λ = 11.6 mm in this work). The frequency components of the sound pressure into the liquid were also investigated and it was discovered that the maximum sonochemical efficiency was reached when the harmonics components were enhanced and subharmonic were reduced. An automatic control system for the increasing the sonochemical efficiency by keeping the impedance at the minimum level with the help of frequency is presented here.
- 2010-12-01
著者
-
Koda Shinobu
Department Of Chemical Engineering Nagoya University
-
ASAKURA YOSHIYUKI
Honda Electronics Co., Ltd.
-
FUKUTOMI Satoshi
Department of Molecular Design and Engineering, Graduate School of Engineering, Nagoya University
-
Asakura Yoshiyuki
Honda Electronics Co. Ltd.
-
Yasuda Keiji
Department Of Chemical Engineering Graduate School Of Engineering Nagoya University
-
Koda Shinobu
Department Of Molecular Design And Engineering Graduation School Of Engineering Nagoya University
-
Fukutomi Satoshi
Department Of Molecular Design And Engineering Graduation School Of Engineering Nagoya University
関連論文
- 3P1-1 液晶等方相での超音波光回折(ポスターセッション)
- Surface Wave Velocity in Methylcellulose Hydrogel in the Drying Process
- Multi-pH Monte Carlo Simulation of Coil-Globule Transition of Weak Polyelectrolyte
- Flow Characteristics in Cocurrent Upflow Bubble Column Dispersed with Micro-Bubbles
- Effect of Flow Mode of Carrier Gas on Performance of Ultrasonic Atomization
- Hydrogen Fermentation by Using Heat-Shocked Granular Sludge
- Effects of Operation Conditions on the Performance of a Concentrator Using Ultrasonic Atomization
- Effect of Ultrasonic Irradiation on Solvent Cleaning for Parts Impregnated with Chlorinated Organic Compounds
- Development of Small Ultrasonic Reactor for On-Site Treatment of Wastewater Including Chlorinated Hydrocarbon
- Enhancement in Biodegradability of Excess Sludge by Using a Centrifugal Vibration Mill
- The Effects of the Solute Properties in Aqueous Solutions on the Separation Characteristics in Ultrasonic Atomization
- The Effect of Operational Condition on the Contribution of Evaporation in Ultrasonic Atomization
- Ultrasonic Decomposition of (4-Chloro-2-methyl phenoxy)acetic Acid (MCPA) in Aqueous Solution
- Effect of Molecular Weight and Degree of Substitution on the Shear Modulus of Methyl Cellulose Gel by Means of Surface Wave Method (Short Note)
- Determining the Size of Colloidal Particles Using Ultrasonic Absorption Measurements
- Dynamics of V_2O_5 Sol by Measurement of Ultrasonically Induced Birefringence
- Depolarized Light Scattering of Liquid Crystals with Addition of Carbon Tetrachloride in the Isotropic Phase
- Ultrasonic Decomposition of a Mixture of Phenol and ρ-Chlorophenol in Aqueous Solution
- Complex Strain-Optical Coefficient Measurements by Means of Polarization Analysis of a Diffracted Light by Longitudinal Ultrasound
- Sound Velocities in Polymer Blends and the Compatibility
- The Effect of a Reflection Plate on the Decomposition Performance of a Sonoreactor
- Development of a Bubble Column with a Gas-Liquid Simultaneous Injection Nozzle and a Downcomer for the Ozone Oxidation Method
- Development of a Rectangular Airlift Sonoreactor Combined with Sparging Ozone
- Effect of Packed Structure on the Liquid Flow Behavior in the Packed Bed Biofilter
- Effects of Particle Properties on Decomposition Performance in Ultrasonic Airlift Reactor
- Effect of Liquid Height on Flow Characteristics in Bubble Column Using Highly Viscous Liquid
- Reduction of Channeling Liquid Flow in Trickle Bed Using Non-Uniformly Packed Structure
- Effects of Packed Structure and Liquid Physical Properties on Liquid Flow Behaviors in Trickle Bed with Non-uniformly Packed Structure
- Effect of Orientation of Packing Structure on Liquid Flow Distribution in Trickle Bed
- Effects of Equipment Dimensions on Circulation Flow Rates of Luquid and Gas in Bubble Column with Draft Tube
- Effect of Liquid Height on Sonochemical Reaction in a Large-Scale Reactor of a Rectangular Parallelepiped Using Low Frequency Ultrasound
- Study on Degradation Rate Constant of Chlorobenzene in Aqueous Solution Using a Recycle Ultrasonic Reactor
- Study on Orientational Motion of Liquid Crystals by Acoustically Induced Birefringence : Physical Acoustics
- Theory of Compression and Expansion of Hydrogels
- Study on Efficiency and Characterization in a Cylindrical Sonochemical Reactor
- Enhancement of Sonochemical Reaction by Dual-Pulse Ultrasound
- Field Tests on Silica Removal from Geothermal Brines in Sumikawa and Onuma Geothermal Areas
- Effect of Agitation Condition on Performance of Sonochemical Reaction
- Optimization of Sonochemical Reactors by Measuring Impedance of Transducer and Sound Pressure in Solution
- Study on Structural Relaxation of Highly Viscous Liquids by Brillouin Scattering Method : Physical Acoustics
- Linear and Nonlinear UItrasonically Induced Birefringence in Polymer Solutions
- The Vibrational-Translational Energy Transfer in Binary Mixtures: Influence of the Vibrational Mode Close to the Lowest Mode in Group Relaxation
- Local Structures and Structural Relaxation Processes in Supercooled Tetra(ethylene glycol)
- Longitudinal Structural Relaxation of Highly Viscous Liquid : Tetraethylene Glycol
- Ultrasonic Velocity Measurement Using Optical Beam Deflection
- Flow and Heat Transfer Characteristics in Liquid-Solid Swirl Fluidized Bed Using Centrifugal Force
- Liquid Flow Rate Distribution in Trickle Bed with Non-Uniformly Packed Structure
- Wastewater Treatment by Anaerobic-Aerobic Activated Sludge Method in Bubble Column with Draft Tube
- Effect of CaO Addition on Rotted Material
- Effect of Liquid Mixing on Performance of Porphyrin Decomposition by Ultrasonic Irradiation
- Rotting Prevention by CaO in RDF Production
- Characterization of Polyvinylchloride by Means of Sound Velocity and Longitudinal Modulus Measurements
- Sensitive Detection of Hydroxyl Radical Production in Ultrasonic Field with an Electrochemiluminescence Optical Sensor
- Effects of Sample Volume and Frequency on Ultrasonic Power in Solutions on Sonication
- Characteristics of a Flow-Channel Type Sonochemical Reactor Equipped with Multitransducer
- Ultrasonic Polymerization of Poly(vinylpyrrolidone)
- Effect of Ultrasonic Frequency on Enzymatic Hydrolysis of Cellulose
- Ultrasonic Study on SBS Block Copolymer in Solutions : Physical Acoustics
- 3Pb4-12 20kHz超音波印加による溶液中ポリマーの劣化(ポスターセッション)
- Evaluation of Young’s Modulus for Polymer Thin Film on Isotropic Substrate by Complex $V(z)$ Curve
- Ultrasonic Studies of Polymer Solutions
- Surface Wave Velocity of Crosslinked Polyacrylate Gels
- Complex strain-optical coefficient measurements by means of polarization analysis of a diffracted light by longitudinal ultrasound (ナノ/マイクロレオロジー特集号)
- Sonophotolytic Degradation of Estriol at Various Ultraviolet Wavelength in Aqueous Solution
- Influence of Transducer Structure on Mechanical and Chemical Effects of 20 kHz Sonication
- Effects of Operational Conditions on 1,4-Dioxane Degradation by Combined Use of Ultrasound and Ozone Microbubbles
- Local Structures and Structural Relaxation Processes in Supercooled Tetra(ethylene glycol)
- Longitudinal Structural Relaxation of Highly Viscous Liquid: Tetraethylene Glycol
- Effect of Pore Size on Performance of Hydrogen Fermentation with Porous Glass Beads
- Polarization of Diffracted Light by Ultrasound in Liquids without Strong Orientational Cooperativity
- Development of a Quartz Crystal Microbalance System for Evaluation of Viscoelastic Properties of Thin Polymeric Films at High Temperatures
- Morphology and Sound Velocity of Plasticized Polyvinylchloride Studied Using Scanning Acoustic Microscope
- Direct Observation of Sinusoidal Ultrasonically Induced Birefringence in Liquid Crystal in the Isotropic Phase
- Observation of Ultrasonic Relaxation due to Micelle-Monomer Exchange Process in Aqueous Solutions of Rodlike Micelles
- Measurement of Ultrasonic Velocity of Hydrogels in Low-Temperature Region
- Acoustic Analysis of Composite Soft Materials, II Characterization of Composite Materials Containing Glass Beads
- Characteristics of Nanoemulsion Prepared by Tandem Acoustic Emulsification at a High Frequency
- Shear Relaxation of Water-Ionic Liquid Mixtures
- Effect of Superposition Location of Ultrasonic Fields on Sonochemical Reaction Rate
- Influence of Liquid Height on Mechanical and Chemical Effects in 20 kHz Sonication
- The Brillouin scattering of highly viscous mixtures.
- The brillouin scattering of highly viscous liquids-triacetin and propylene glycol diacetate.
- Effect of Superposition Location of Ultrasonic Fields on Sonochemical Reaction Rate
- 2P4-1 20kHz超音波の機械的化学的効果に対する波面高さの影響(ポスターセッション)
- Pressure and temperature effects on conformational equilibria between rotational isomers. II. Isobutyl and s-butyl halides in hexane and methanol.
- The molecular motion of phenyl groups in toluene, diphenylmethane and triphenylmethane in solutions of carbon tetrachloride by raman line shape analysis.
- Brillouin scattering of supercooled liquids. I. Tri-o-tolyl phosphate.
- Brillouin scattering and ultrasonic absorption measurements of chloroform-eicosane mixtures.
- Temperature dependence of reorientational and vibrational relaxation times of benzene and benzene-d6 in solid and liquid phases.
- P-21 Effect of Ultrasonic Irradiation Condition on Enzymatic Hydrolysis of Woods(Poster Presentations)
- S2. One Drop Solvent Microextraction Technique with an Aid of Ultrasound and Its Application in Trace Analysis(Oral Presentation)
- P27. Difference in degradation of Polyethylene oxide at 20 kHz sonication with horn and Langevin transducer(Poster Presentation)
- P6. Effects of pressure and temperature on the sonochemical reaction in a flow-type reactor equipped with a PZT transducer(Poster Presentation)
- S11. A stud of acoustic streaming in sonoc emical reactor(Oral Presentation)
- P-53 Study on power of ultrasound dissipated in organic solvents(Poster Presentations)
- P-72 Degradation of cellulose in aqueous solution of sodium hydroxide by ultrasonication(Poster Presentations)
- Influence of Liquid Height on Mechanical and Chemical Effects in 20 kHz Sonication
- P35. Effect of liquid properties on ultrasonic atomization amount(Poster Presentation)
- P43. Dispersion and coalescence of oil droplet under ultrasonic field(Poster Presentation)
- P-49 Frequency and power effects of ultrasound on liposome solution(Poster Presentations)