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Study on Cooling System Characteristics of 400W Active Speaker
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 Title & Authors
Study on Cooling System Characteristics of 400W Active Speaker
Seo, Jae-Hyeong; Bang, You-Ma; Lee, Moo-Yeon;
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 Abstract
The objective of this study is to experimentally investigate the cooling performance characteristics with the consideration of the temperature variations of the enclosure of the 400W ferrofluid active speaker having both woofer and amplifier heat sinks. In order to do this, the heat sinks for both woofer and amplifier was designed ant applied to 400W ferrofluid active speaker. As a result, the cooling performance of the developed 400W ferrofluid active speaker was improved and the temperature of the enclosure after 120 min at steady state increased by with the increase of the outdoor temperatures from to . In addition, the overall sound pressure level of the developed 400W ferrofluid active speaker showed 111.8 dB and improved 1.9 dB higher than 109.9 dB of the existed speaker.
 Keywords
Active speaker;Amplifier;Ferrofluid;Heat sink;Woofer;
 Language
Korean
 Cited by
 References
1.
M. Y. Lee, H. J. Kim, W. Y. Lee, "Numerical Analysis on Temperature Characteristics of the Voice-Coil for Woofer Speaker Using Ferrofluid", Journal of The Korean Magnetic Society, Vol. 23, No. 5, pp. 166-172, 2013. DOI: http://dx.doi.org/10.4283/JKMS.2013.23.5.166 crossref(new window)

2.
H. J. Kim, D. W. Kim, M. Y. Lee, "Experimental study on the heat transfer characteristics of woofer speaker unit", Journal of the Korea Academia-Industrial cooperation Society, Vol. 15, No. 5, pp. 2623-2627, 2014. DOI: http://dx.doi.org/10.5762/KAIS.2014.15.5.2623 crossref(new window)

3.
Ferrotech (USA) Corp., Material safety data sheet, USA, pp. 1-5, 2009.

4.
H. J. Kim, J. H. Seo, W. Y. Lee, J. K. Yeom, L. S. Seo, M. Y. Lee, "Numerical Analysis on Performance Characteristics for Woofer Speaker Using Effective Cooling Technique", Proc. of the KMS Summer Conference, pp. 66-67, 2013.

5.
S. G. Koh, K. J. Lee, J. H. Kang, G. H. Oh, K. H. Sung, C. J. Kim, "Development of a temperature prediction tool for voice-coils in loudspeakers using CFD analysis", Proc. of the KSME Spring Annual Meeting, pp. 41-44, 2008.

6.
[Online] http://www.3ds.com/products-services/catia/products/v5/

7.
[Online] https://ferrofluid.ferrotec.com/index.php?id=audioFluid&vfp_id=53

8.
M. Y. Lee, H. J. Kim, "Heat Transfer Characteristics of a Speaker Using Nano-Sized Ferrofluid", Entropy, Vol. 16, No. 11, pp. 5891-5900, 2014. DOI: http://dx.doi.org/10.3390/e16115891 crossref(new window)

9.
Jung-Ho Lee, Jae-Ung Cho, "Durability Study by Heat at Vehicle Steering Wheel Hot Wire," Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology, Vol. 5, No. 2, pp. 231-239, April 2015. DOI: http://dx.doi.org/10.14257/AJMAHS.2015.04.04

10.
Chan Jun Chun, Seok Hee Jeong, Hong Kook Kim, Usability Evaluation of a User Interface for Mono-to-Stereo Audio Extension Applied to Portable Multimedia Devices, Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology, Vol. 5, No. 3 , pp. 1-9, June 2015. DOI: http://dx.doi.org/10.14257/AJMAHS.2015.06.05

11.
O-Beom Kim, Ilho Yang, "An Analysis of Cognitive Artifacts on Pre-service Teachers' Engineering Design Activity : a Distributed Cognition Perspective," Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology, Vol. 4, No. 2, pp. 257-270, Dec. 2014. DOI: http://dx.doi.org/10.14257/AJMAHS.2014.12.28