19-09-2017, 03:39 PM
A thermoacoustic refrigerator (TAR) is a refrigerator that uses sound waves to provide cooling. In a TAR, the working fluid is a mixture of helium-argon, and the compressor is replaced by a speaker. The advantages of this type of refrigeration cycle are twice.
• Helium and argon are inert, environmentally friendly gases, unlike many common refrigerants.
• The speaker is a simple device that is more durable than a compressor and is the only moving part of the TAR.
The disadvantage of ART is that, however, these types of refrigerators have failed to achieve efficiencies as high as standard refrigeration units. Some researchers claim that the ART startup is such that it will never be able to achieve efficiencies as high as standard cooling units. Others believe there is no reason why a TAR can not achieve efficiencies as high as standard refrigeration units. They attribute the currently lower efficiencies to the peculiar sensitivity of TAR to input parameters and the relative youth of the field in general.
• Helium and argon are inert, environmentally friendly gases, unlike many common refrigerants.
• The speaker is a simple device that is more durable than a compressor and is the only moving part of the TAR.
The disadvantage of ART is that, however, these types of refrigerators have failed to achieve efficiencies as high as standard refrigeration units. Some researchers claim that the ART startup is such that it will never be able to achieve efficiencies as high as standard cooling units. Others believe there is no reason why a TAR can not achieve efficiencies as high as standard refrigeration units. They attribute the currently lower efficiencies to the peculiar sensitivity of TAR to input parameters and the relative youth of the field in general.