Quick Search: Journal  Author  Title/Abstract  Vol./Year 

Jpn. J. Appl. Phys. 51 (2012) 07GE01 (5 pages)  |Previous Article| |Next Article|  |Table of Contents|
|Full Text PDF: FREE (627K)|

Fundamental Study for the Solution of Thermoacoustic Phenomenon Using Numerical Calculation: Relationship between the Stack Installation Position and Heat Flow

Kentaro Kuroda, Shin-ichi Sakamoto1, Kenji Shibata2, Yosuke Nakano3, Takao Tsuchiya3, and Yoshiaki Watanabe

Faculty of Life and Medical Sciences, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
1Department of Electronic Systems Engineering, University of Shiga Prefecture, Hikone, Shiga 522-8533, Japan
2Faculty of Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan
3Faculty of Science and Engineering, Doshisha University, Kyotanabe, Kyoto 610-0321, Japan

(Received November 18, 2011; accepted April 25, 2012; published online July 20, 2012)

Thermoacoustic systems have several advantages owing to their simple structure driven by heat energy such as waste heat and solar heat. However, because their energy conversion efficiency is low, they have not been developed for practical use. Therefore, to improve energy conversion efficiency, a method of system design development is examined in this report using numerical calculations. First, calculation results obtained using the transfer-matrix methods are compared with experimentally obtained results, which confirms their good agreement. Secondly, calculated results of each heat flow element in the stack show that heat flow proportional to the temperature gradient QD, which decreases the performance of the system, is dominant. Finally, the installation position of the stack is changed to reduce the ratio that QD occupies in the heat flow. Results show a decrease in the ratio obtained by moving the stack installation position closer to the center of the tube. Energy conversion efficiency was increased eight times.

URL: http://jjap.jsap.jp/link?JJAP/51/07GE01/
DOI: 10.1143/JJAP.51.07GE01


|Full Text PDF: FREE (627K)|  Citation:

References

  1. P. H. Ceperley: J. Acoust. Soc. Am. 77 (1985) 1239[AIP Scitation].
  2. G. W. Swift: J. Acoust. Soc. Am. 84 (1988) 1145[AIP Scitation].
  3. S. Backhaus and G. W. Swift: Nature 399 (1999) 335[CrossRef].
  4. T. Yazaki, A. Iwata, T. Maekawa, and A. Tominaga: Phys. Rev. Lett. 81 (1998) 3128[APS].
  5. A. Tominaga: Cryogenics 35 (1995) 427.
  6. A. Tominaga and T. Yazaki: Teion Kogaku 33 (1998) 90 [in Japanese].
  7. G. W. Swift: Phys. Today 48 (1995) 22.
  8. S. Sakamoto and Y. Watanabe: Ultrasonics 42 (2004) 53.
  9. S. Sakamoto and Y. Watanabe: Jpn. J. Appl. Phys. 45 (2006) 9257[JSAP].
  10. H. Yoshida, S. Sakamoto, and Y. Watanabe: Jpn. J. Appl. Phys. 46 (2007) 4413[JSAP].
  11. Y. Imamura, S. Sakamoto, and Y. Watanabe: Jpn. J. Appl. Phys. 46 (2007) 4417[JSAP].
  12. S. Sakamoto, Y. Imamura, and Y. Watanabe: Jpn. J. Appl. Phys. 46 (2007) 4951[JSAP].
  13. S. Sakamoto, M. Nishikawa, T. Ishino, Y. Watanabe, and J. Senda: Jpn. J. Appl. Phys. 47 (2008) 4223[JSAP].
  14. T. Ishino, S. Sakamoto, M. Nishikawa, and Y. Watanabe: Jpn. J. Appl. Phys. 48 (2009) 07GM12[JSAP].
  15. S. Sakamoto, H. Yoshida, A. Sakaguchi, and Y. Watanabe: Jpn. J. Appl. Phys. 48 (2009) 07GM01[JSAP].
  16. S. Sakamoto, K. Sahashi, Y. Kitadani, T. Ishino, and Y. Watanabe: Jpn. J. Appl. Phys. 50 (2011) 07HE20[JSAP].
  17. Y. Kitadani, S. Sakamoto, K. Kuroda, and Y. Watanabe: Nihon Kikai Gakkai Ronbunshu B 77 (2011) 1021 [in Japanese].
  18. T. Biwa, Y. Ueda, T. Yazaki, and U. Mizutani: Cryogenics 41 (2001) 305.
  19. T. Biwa, Y. Tashiro, H. Nomura, Y. Ueda, and T. Yazaki: Rev. Sci. Instrum. 78 (2007) 086110[AIP Scitation].
  20. Y. Ueda, T. Biwa, U. Mizutani, and T. Yazaki: J. Acoust. Soc. Am. 115 (2004) 1134[AIP Scitation].
  21. Y. Ueda and C. Kato: J. Acoust. Soc. Am. 124 (2008) 851[AIP Scitation].
  22. Y. Ueda: J. Power Energy Syst. 2 (2008) 1276.
  23. Y. Ueda, T. Kato, and C. Kato: J. Acoust. Soc. Am. 125 (2009) 780[AIP Scitation].
  24. S. Nagata and Y. Ueda: Teion Kogaku 43 (2008) 561 [in Japanese].
  25. N. Rott: Z. Angew. Math. Phys. 20 (1969) 230 [in German].
  26. N. Rott: Z. Angew. Math. Phys. 24 (1973) 54 [in German].
  27. N. Rott and G. Zouzoulas: Z. Angew. Math. Phys. 27 (1976) 197 [in German].
  28. U. H. Kurzweg and L. de Zhao: Phys. Fluids 27 (1984) 2624[AIP Scitation].
  29. N. B. Vargaftik: Handbook of Physical Properties of Liquid and Gases (Hemisphere, Washington, D.C., 1975) 521.
  30. A. M. Fusco, W. C. Ward, and G. W. Swift: J. Acoust. Soc. Am. 91 (1992) 2229[AIP Scitation].
|TOP|  |Previous Article| |Next Article|  |Table of Contents| |JJAP Home|
Copyright © 2013 The Japan Society of Applied Physics
Contact Information