JOURNAL BROWSE
Search
Advanced SearchSearch Tips
An Experimental Study for Improving the Performance of a Thermoacoustic Refrigerator
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Experimental Study for Improving the Performance of a Thermoacoustic Refrigerator
Park, Jong Ho; Song, Gyu Jo; Gang, Hyeon Taek; U, Sam Yong;
 
 Abstract
The thermoacoustic refrigerator has not only considerable possibility but also commercial usability, because it has high reliability, lower vibration, no moving part, and can easily be constructed. In this study, the resonance characteristics of the thermoacoustic refrigerator were investigated for better performance, varying the length of stacks to 40mm -100mm. In order to deter-mine the optimum position of stack in the resonance tube and the motor frequency, the λ/4 thermoacoustic engine and the similar apparatus of Hofler type refrigerator were constructed. The resonance tube is 540mm in length. In case of using air as a coolant at frequency of 180Hz, the cold-part temperature of the heat exchanger fell to -3℃ after 1 minutes, generating frost on the stack's cold part. The first, third, and fifth harmonics have frequency of 180Hz, 480Hz, and 780Hz respectively. The highest efficiency were obtained from the third harmonic with resonant tube of 380mm in length.
 Keywords
Thermoacoustic;Harmonic Frequency;Stack;Thermal Penetration Depth;Viscous Penetration Depth;
 Language
Korean
 Cited by
 References
1.
J. Acoust. Soc. Am., 1988. vol.84. 4, pp.1145-1180

2.
Adv. Cryog. Eng., 1954. vol.1. pp.302

3.
J. Low Tim. Phy., 1980. vol.41. pp.45

4.
J. Sound Vib., 1968. vol.7. pp.71

5.
Adv. Croyg. Eng., 1966. vol.11. pp.171

6.
J. Fluid Mech., 1975. vol.70. pp.161

7.
Z. Angrew. Math. Phys., 1969. vol.20. pp.135-175

8.
Z. Angrew. Math. Phys., 1969. vol.20. pp.243

9.
Z. Angrew. Math. Phys., 1969. vol.24. pp.54-72

10.
Z. Angrew. Math. Phys., 1975. vol.26. pp.43-49

11.
Z. Angrew. Math. Phys., 1976. vol.27. pp.197-224

12.
Z. Angrew. Math. Phys., 1976. vol.27. pp.325-334

13.
J. Acoust. Soc. Am., 1983. vol.74. pp.153-170

14.
Ph. D. Dissertation at University of California, 1986.

15.
Physics Today, 1995. pp.22-28

16.
한국물리학회지, 1997. vol.10. pp.181-185

17.
한국음향학회지, 1995. vol.14. pp.13-20