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Relevant bibliographies by topics / Piezoelectric blower

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Journal articles
Dissertations / Theses
Conference papers

Academic literature on the topic 'Piezoelectric blower'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 February 2022

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Journal articles on the topic "Piezoelectric blower"

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Hirata, Atsuhiko, and Gaku Kamitani. "Piezoelectric Micro-Blower." Journal of the Acoustical Society of America 131, no. 1 (2012): 638. http://dx.doi.org/10.1121/1.3677691.

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FUKUE, Takashi, Koichi HIROSE, Hirotoshi TERAO, and Yoshiki MATSUURA. "J012031 Measurement of Performance Curve of a Piezoelectric Micro Blower." Proceedings of Mechanical Engineering Congress, Japan 2013 (2013): _J012031–1—_J012031–5. http://dx.doi.org/10.1299/jsmemecj.2013._j012031-1.

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Wang, Chien-Ping. "Thermal Management for Portable Electronics Using a Piezoelectric Micro-Blower." IEEE Transactions on Device and Materials Reliability 19, no. 3 (September 2019): 563–67. http://dx.doi.org/10.1109/tdmr.2019.2933021.

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ONO, Norifumi. "A Consideration on Cooling Control of Electronic Device Using Piezoelectric Micro-Blower." Proceedings of the Conference on Information, Intelligence and Precision Equipment : IIP 2018 (2018): 1C11_1. http://dx.doi.org/10.1299/jsmeiip.2018.1c11_1.

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Dau, V. T., and T. X. Dinh. "Numerical study and experimental validation of a valveless piezoelectric air blower for fluidic applications." Sensors and Actuators B: Chemical 221 (December 2015): 1077–83. http://dx.doi.org/10.1016/j.snb.2015.07.041.

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FUKUE, Takashi, Koichi HIROSE, Yoshiki MATSUURA, and Hirotoshi TERAO. "511 Investigation of Cooling Design using a Piezoelectric Micro Blower in Narrow Flow Passages." Proceedings of Autumn Conference of Tohoku Branch 2014.50 (2014): 107–8. http://dx.doi.org/10.1299/jsmetohoku.2014.50.107.

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MATSUURA, Yoshiki, Koichi HIROSE, Takashi FUKUE, and Hirotoshi TERAO. "H215 Effects of Obstructions Mounted near a Piezoelectric Micro Blower on Performance Characteristic Curves." Proceedings of the Thermal Engineering Conference 2013 (2013): 417–18. http://dx.doi.org/10.1299/jsmeted.2013.417.

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NATSUSAKA, Hayate, Koichi HIROSE, Takashi FUKUE, Hirotoshi TERAO, and Tomoko WAUKE. "A223 Evaluation of Flow and Heat Transfer of High Speed Jet from Piezoelectric Micro Blower." Proceedings of the Thermal Engineering Conference 2015 (2015): _A223–1_—_A223–2_. http://dx.doi.org/10.1299/jsmeted.2015._a223-1_.

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Chovet, C., M. Lippert, L. Keirsbulck, and J. M. Foucaut. "Dynamic characterization of piezoelectric micro-blowers for separation flow control." Sensors and Actuators A: Physical 249 (October 2016): 122–30. http://dx.doi.org/10.1016/j.sna.2016.08.016.

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"Acoustic Energy Harvesting Through Multilayer Piezoelectric Harvester Model." International Journal of Innovative Technology and Exploring Engineering 9, no. 3 (January 10, 2020): 1848–56. http://dx.doi.org/10.35940/ijitee.c8669.019320.

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Low-power requirements of contemporary sensing technology attract research on alternate power sources that can replace batteries. Energy harvesters’ function as power sources for sensors and other low-power devices by transducing the ambient energy into usable electrical form. Energy harvesters absorbing the ambient vibrations that have potential to deliver uninterrupted power to sensing nodes installed in remote and vibration rich environments motivate the research in vibrational energy harvesting. Piezoelectric bimorphs have been demonstrating a pre-eminence in converting the mechanical energy in ambient vibrations into electrical energy. Improving the performance of these harvesters is pivotal, as the energy in ambient vibrations is innately low. In this paper, we propose a mechanism namely MultilayerPEHM (Piezoelectric Energy Harvester Model) which helps in converting the waste or unused energy into the useful energy. Multilayer-PEHM contains the various layer, which is placed one over the other, each layer is placed with specific element according to their properties and size, the size of the layer plays an important part for achieving efficiency. Furthermore, this paper presents an audit of the energy available in a vibrating source and design for effective transfer of the energy to harvesters, secondly, design of vibration energy harvesters with a focus to enhance their performance, and lastly, identification of key performance metrics influencing conversion efficiencies and scaling analysis for these acoustic harvesters. Typical vibration levels in stationary installations such as surfaces of blowers and ducts, and in mobile platforms such as light and heavy transport vehicles, are determined by measuring the acceleration signal. The frequency content in the signal is determined from the Fast Fourier Transform.

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Dissertations / Theses on the topic "Piezoelectric blower"

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Solomon, Brad K. "Methods for Identifying Acoustic Emissions From the Front Face of a Small Piezoelectric Blower." BYU ScholarsArchive, 2012. https://scholarsarchive.byu.edu/etd/3542.

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This thesis focuses on identifying acoustic noise generating components in piezoelectric blowers through transverse velocity measurements and the development of a numerical fluid model. Piezoelectric ceramics have proven useful for many industries and areas of research involving: high precision actuators, noise control, ultrasonic devices, and many other areas. As of late, a unique adaptation of piezoelectric ceramics is surfacing in the area of pumping and cooling. Air pumps that use these ceramics replace the traditional electric motor, resulting in lower power consumption, less moving parts, constant pressure gradients, lower overall weight, and a low profile. The current drawback of this application is the acoustic radiation produced by the blowers. Since these blowers are new to market, little research or development has been done to characterize the noise emissions. This thesis studies the acoustic emissions from the front face of a Murata piezoelectric blower. Jet noise and structural vibrations are two acoustic sources of interest that are studied in this research. A Direct Numerical Simulation (DNS) of the fluid flow through a Murata blower is developed to better identify noise generating mechanisms. The model solutions predict trends in sound pressure levels (SPL) of the jet noise and volumetric flow rates. Both the SPL and flow rate are shown to be functions of critical geometrical dimensions within the flow path of a Murata blower. Important dimensional components are identified as well as non-influential ones. Design guidelines are given to reduce noise emission from the front side of a blower and increase the volumetric flow rate. The results of this research have a direct impact on the piezoelectric blower industry and future blower designs.

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Conference papers on the topic "Piezoelectric blower"

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Fukue, Takashi, Koichi Hirose, and Hirotoshi Terao. "Measurement of Performance Characteristics of a Piezoelectric Micro Blower." In ASME 2013 11th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icnmm2013-73092.

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This study conducts a measurement system of a performance of a piezoelectric micro blower. Electronic equipments such as laptop computers and cellular phones become smaller and thinner while their functions become more complex. As a result, a lot of components are mounted in an electronic enclosure and flow passages for the cooling air become narrow. This causes significant pressure drop and general cooling fans cannot supply enough cooling air. To improve cooling performance in small electronic equipment, a new air supply system which combines smaller and thinner size with a high pressure performance characteristic is needed. We focused on a novel piezoelectric micro blower. This blower can supply the airflow with high static pressure using the vibration of the piezoelectric element. This may produce a forced convection cooling with low electric power regardless of the size of electronic equipment and packaging density of electrical devices. However, to predict accurate cooling performance of the piezoelectric micro blower in thermal design, we have to obtain a correct supply flow rate of the blower because the cooling performance of forced convection is significantly dependent on the supply flow rate. Generally, an operating point of the blower, which is the operating pressure and the flow rate in electronic equipment, is the point of intersection of performance characteristic curve, which is the relationship between the blower’s pressure rise and the supply flow rate, and flow resistance curve in equipment. Therefore the measurement of the performance characteristic curve is most important. We tried to develop the measurement system of the performance characteristic curve of the piezoelectric micro blower with high accuracy. We succeeded to measure the relationship between the supply flow rate and the static pressure rise of the micro blower. Moreover, in order to clarify whether the micro blower is available for a cooling method of high-density packaging electronic equipment or not, we tried to investigate the effects of the obstruction, which is mounted in front of the blower, on the performance characteristic. Then, we confirmed whether the performance of the blower is changed by the components mounted near the blower or not.

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Endres, Ned M. "Acoustic and Vibration Analysis of Fluid Induced Blower and Piping Unwanted Motion." In ASME 2011 Pressure Vessels and Piping Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/pvp2011-57017.

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This paper presents investigational findings and a discussion of recommendations relating to sound and vibration measurements performed in connection with a fluid induced vibration issue on two air blowers and attached exhaust piping at an industrial facility. These vibration and sound measurements were prompted by recent check valve failures for the air blower units, and unacceptable sound levels emanating from these units and affecting nearby residents. This data was acquired during steady state operating conditions of the blowers under normal operating conditions. An FFT data acquisition system, a piezoelectric microphone and three piezoelectric triaxial accelerometers were used to collect vibration measurements at each of the 70 locations on the blowers, motors, blower bases, and exhaust piping, while sound measurements were simultaneously acquired with the microphone. Piping and blower vibration readings were used to construct an operating deflection shape analysis of the blowers, foundations and attached piping system. The resulting vibration and sound analysis revealed that acoustic excitation of the piping system appeared to be the likely source of the high vibration, high sound pressure levels; piping cracks and check valve failures. Corrective actions were implemented that reduced the sound pressure levels, vibration levels, and reduced/eliminate the piping damage and valve failures.

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Fukue, Takashi, Koichi Hirose, Yoshiki Matsuura, and Hirotoshi Terao. "Effects of obstruction in front of a piezoelectric micro blower on performance characteristics." In 2013 IEEE CPMT Symposium Japan (Formerly VLSI Packaging Workshop of Japan). IEEE, 2013. http://dx.doi.org/10.1109/icsj.2013.6756109.

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Fukue, Takashi, Yoshiki Matsuura, Koichi Hirose, and Hirotoshi Terao. "Evaluation of cooling performance of a piezoelectric micro blower in narrow flow passage." In 2014 International Conference on Electronics Packaging (ICEP). IEEE, 2014. http://dx.doi.org/10.1109/icep.2014.6826663.

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Wu, Maria, and Pierre Sullivan. "Experimental Characterization of a Micro-Blower for Flow Control." In ASME-JSME-KSME 2019 8th Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/ajkfluids2019-4772.

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Abstract A compact, lightweight, low-power piezoelectric micro-blower was characterized using particle image velocimetry to determine its flow control potential. The micro-blower has been operated in continuous mode as well as in burst mode using two different actuation frequencies. The maximum mean velocity measured with the micro-blower operating in continuous mode was approximately Ūmax = 13 m/s which occurred at the centerline at an approximate stream-wise location of x/d = 4. The velocity profiles in the developed region resemble those of turbulent jets. The momentum-flux from the micro-blower in continuous mode was significantly greater than a typical synthetic jet actuator which was successfully used for flow control, indicating that the micro-blower can impart the necessary momentum to be effective for flow control. With burst mode, the results show that the micro-blower could impart an even greater momentum.

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Fukue, Takashi, Koichi Hirose, and Hirotoshi Terao. "Cooling performance of impinging jet from piezoelectric micro blower mounted in narrow flow passage." In 2015 International Conference on Electronic Packaging and iMAPS All Asia Conference (ICEP-IAAC). IEEE, 2015. http://dx.doi.org/10.1109/icep-iaac.2015.7111086.

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Eastman, Andrew, Mark Kimber, Atsuhiko Hirata, and Gaku Kamitani. "Heat Transfer Analysis of a Novel Piezoelectric Air Pump." In ASME/JSME 2011 8th Thermal Engineering Joint Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajtec2011-44384.

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With the propagation of ever faster and more powerful electronics, the need for active, low power, cooling is becoming apparent. Piezoelectric materials exhibit reasonable performance with very little power consumption. Therefore a promising potential solution lies in utilizing piezoelectric materials via fans or pumps. However, piezoelectric pumps have mainly been employed in the transport of liquids and aqueous solutions through small microchannels. The structures typically consist of both an outlet nozzle and an inlet nozzle that are geometrically disposed to promote flow in one direction. Device construction is generally simplified compared to mechanically actuated openings, however much of the potential flow is lost due to backflow. The piezoelectric pump studied in this paper consists of a single outlet nozzle with a large inlet. Its unique construction allows it to overcome relatively high pressures as well as promoting better manufacturability. Experimental investigations were undertaken in order to characterize the cooling potential of the device. A thin film heater provided a constant heat flux and an infrared camera was used to determine the resulting temperatures of the heated surface. Full-field data of the convection coefficient were analyzed as a function of vibration amplitude of the piezoelectric diaphragm and distance from the nozzle to the heated target. A maximum heat transfer coefficient was found when the blower was approximately 30 mm from the heated surface and this distance was independent of vibration amplitude. Correlations have been developed which account for both variables considered and can be used to predict the performance of future designs which rely on the same physical characteristics.

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Yeom, Taiho, Terrence W. Simon, Youmin Yu, Min Zhang, Smita Agrawal, Longzhong Huang, Tao Zhang, Mark T. North, and Tianhong Cui. "An Active Heat Sink System With Piezoelectric Translational Agitators and Micro Pin Fin Arrays." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-88449.

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Conventional heat sink systems with blowers or fans are approaching maximum thermal management capability due to dramatically increased heat dissipation from the chips of high power electronics. In order to increase thermal performance of air-cooled heat sink systems, more active or passive cooling components are continually being considered. One technique is to agitate of the flow in the heat sinks to replace or aid conventional blowers. In the present study, an active heat sink system that is coupled with a piezoelectric translational agitator and micro pin fin arrays on the heat sink surfaces is considered. The piezoelectric translational agitator generates high frequency and large displacement motion to a blade. It is driven by an oval loop shell that amplifies the small displacement of the piezo stack actuator to the several-millimeter range. The blade, made of carbon fiber composite, is easily extended to a multiple-blade system without adding much mass. The micro pin fin arrays were created with the LIGA photolithography technique. The cooling performance of the heat sink system was demonstrated in single-channel and multiple-channel test facilities. The singlechannel test results show that the active heat sink with the agitator operating at a frequency of 686 Hz and peak-to-peak displacement of 1.4 mm achieved a low thermal resistance of 0.053 C/W in a channel with a 7.9 m/sec flow velocity. Different configurations of the translational agitator with multiple blades were fabricated and tested in a 26-channel, full-size heat sink. Vibrational characteristics are also provided.

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St. Clair, Daniel, Christopher Stabler, Mohammed F. Daqaq, Jian Luo, and Gang Li. "A Smart Device for Harnessing Energy From Aerodynamic Flow Fields." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-12301.

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In this work, inspired by music playing harmonicas, we conduct a conceptual investigation of a coupled aero-electromechanical system for wind energy harvesting. The system consists of a piezoelectric cantilever unimorph structure embedded within an air chamber to mimic the vibration of the reeds in a harmonica when subjected to air flow. In principle, when wind blows into the air chamber, the air pressure in the chamber increases and bends the cantilever beam opening an air path between the chamber and the environment. When the volumetric flow rate of air past the cantilever is large enough, the energy pumped into the structure via the nonlinear pressure forces offset the intrinsic damping in the system setting the beam into self-sustained limit-cycle oscillations. These oscillations induce a periodic strain in the piezoelectric layer which produces a voltage difference that can be channeled into an electric load. Unlike traditional vibratory energy harvesters where the excitation frequency needs to match the resonant frequency of the device for efficient energy extraction, the nonlinearly coupled aero-elasto dynamics of this device guarantees autonomous vibration of the cantilever beam near its natural frequency as long as the volumetric flow rate is larger than a certain threshold. Experimental results are presented to demonstrate the ability of this device to harvest wind energy under normal wind conditions.

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Bibo, Amin, Daniel St. Clair, Venkata R. Sennakesavababu, Gang Li, and Mohammed F. Daqaq. "A Nonlinear Electromechanical Model of a Scalable Self-Excited Wind Energy Harvester." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-28921.

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We present and validate a nonlinear aero-electro-mechanical model that describes the response of a scalable self-excited wind energy harvester. Similar to music-playing harmonica that create tones via oscillations of reeds when subjected to air blow, the proposed device uses flow-induced self-excited oscillations of a piezoelectric beam embedded within a cavity to generate electric power. Specifically, when the volumetric flow rate of air past the beam exceeds a certain threshold, the energy pumped into the structure via nonlinear pressure forces offsets the intrinsic damping in the system setting the beam into self-sustained limit-cycle oscillations. The vibratory energy is then converted into electricity through principles of piezoelectricity.

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