Acoustics and heat transfer characteristics of piezoelectric driven central orifice synthetic jet actuators

Name: Acoustics and heat transfer characteristics of piezoelectric driven central orifice synthetic jet actuators
Author: Ikhlaq, M., Yasir, M., Ghaffari, O., Arık, Mehmet

İsim	Acoustics and heat transfer characteristics of piezoelectric driven central orifice synthetic jet actuators
Yazar	Ikhlaq, M., Yasir, M., Ghaffari, O., Arık, Mehmet
Basım Tarihi:	2022-09-19
Basım Yeri	- Taylor & Francis
Konu	Acoustic measurements, Heat transfer, Microelectronic cooling, Piezoelectric actuators, Sound level, Synthetic jets
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0891-6152
Kayıt Numarası	50ddabfb-b6b8-4c27-b408-75d50411bbdb
Lokasyon	Mechanical Engineering
Tarih	2022-09-19
Notlar	TÜBİTAK ; EVATEG center ; Arçelik Corporation
Örnek Metin	Growth in computational capacity combined with a decrease in the size of digital devices has led to increasing demand for more active and efficient cooling of electronics. In this study, an experimental investigation into two different sizes of central orifice Synthetic Jet Actuators (SJAs) is conducted to evaluate their heat transfer as well as noise generation characteristics. Two SJAs (40 mm and 20 mm) are examined, covering a distinct span of frequencies ranging from low to medium (<5500 Hz) in regards to the effect of SJA size over performance. The SJAs’ disk deflection, structural frequency, and jet exit velocity were measured to fully characterize the jet performance. The maximum Nusselt number for the largest SJA was 3 times more than the smallest SJA, where the evaluation of stroke length suggests no effective synthetic jet formation for the smallest SJA. The noise from the SJAs was measured in an anechoic chamber using three microphones, Fast Fourier Transform (FFT) of the sound pressure levels provide contributions to different tones in the resulting noise. 1/3 Octave Constant Percentage Bandwidth (CPB) analysis was performed to identify the frequency bands making the largest contribution to the noise. The largest SJA showed the highest heat transfer at acceptable noise levels during the operation below resonance frequency.
DOI	10.1080/08916152.2021.1946211
Cilt	35

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Acoustics and heat transfer characteristics of piezoelectric driven central orifice synthetic jet actuators

Yazar Ikhlaq, M., Yasir, M., Ghaffari, O., Arık, Mehmet

Basım Tarihi 2022-09-19

Basım Yeri - Taylor & Francis

Konu Acoustic measurements, Heat transfer, Microelectronic cooling, Piezoelectric actuators, Sound level, Synthetic jets

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0891-6152

Kayıt Numarası 50ddabfb-b6b8-4c27-b408-75d50411bbdb

Lokasyon Mechanical Engineering

Tarih 2022-09-19

Notlar TÜBİTAK ; EVATEG center ; Arçelik Corporation

Örnek Metin Growth in computational capacity combined with a decrease in the size of digital devices has led to increasing demand for more active and efficient cooling of electronics. In this study, an experimental investigation into two different sizes of central orifice Synthetic Jet Actuators (SJAs) is conducted to evaluate their heat transfer as well as noise generation characteristics. Two SJAs (40 mm and 20 mm) are examined, covering a distinct span of frequencies ranging from low to medium (<5500 Hz) in regards to the effect of SJA size over performance. The SJAs’ disk deflection, structural frequency, and jet exit velocity were measured to fully characterize the jet performance. The maximum Nusselt number for the largest SJA was 3 times more than the smallest SJA, where the evaluation of stroke length suggests no effective synthetic jet formation for the smallest SJA. The noise from the SJAs was measured in an anechoic chamber using three microphones, Fast Fourier Transform (FFT) of the sound pressure levels provide contributions to different tones in the resulting noise. 1/3 Octave Constant Percentage Bandwidth (CPB) analysis was performed to identify the frequency bands making the largest contribution to the noise. The largest SJA showed the highest heat transfer at acceptable noise levels during the operation below resonance frequency.

DOI 10.1080/08916152.2021.1946211

Cilt 35