The Proceedings of the Symposium on Stirlling Cycle
Online ISSN : 2424-2926
2010.13
Session ID : C10
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C10 Energy conversion and energy loss for loop type thermoacoustic refrigerator
Ryoji TAKAHASHIKazuhiro HAMAGUCHIYoshikatsu HIRATSUKAKenichi P. KOBAYASHI
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CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract
The thermoacoustic effect is energy conversion between heat and sound. When thermal energy is converted to the oscillation of sound, the heat pump cycle is driven by using that oscillation. In this work, the heat exchanger for a prime mover of loop type thermoacoustic refrigerator was designed with the concept of Stirling engine. It was found that the efficiency of the heat exchanger depends on the surface area. To analyze the efficiency of the thermoacoustic refrigerator, the energy flow was calculated by measuring temperature distribution and energy flow. About 75% of the input heat was transferred by the sound flow and radiation. When the orifice was inserted in the tube to reduce the heat transfer by sound, the efficiency was improved.
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© 2010 The Japan Society of Mechanical Engineers
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