25-08-2017, 09:32 PM
Thermoacoustic Refrigeration
Thermoacoustic.ppt (Size: 213 KB / Downloads: 246)
Introduction
Thermoacoustics combines the branches of acoustics and thermodynamics together to move heat using sound.
Acoustics is primarily concerned with the macroscopic effects of sound transfer like coupled pressure and motion oscillations.
Thermoacoustics focuses on the microscopic temperature oscillations that accompany these pressure changes.
Basic Principle
Thermoacoustics is based on the principle that sound waves are pressure waves and they propagate causing compressions and rarefactions in the medium.
Advantages
Harmful chemicals like CFC’s, HFC’s, HCFC’s are not released into atmosphere.
As the working fluid is an inert gas there is no toxicity, flammability, or negative environmental effects.
It is more reliable as there are few moving parts.
Conclusion
Thermoacoustic refrigeration is an innovative alternative for cooling that is both clean and inexpensive. The refrigeration effect is achieved by using sound waves and an inert gas which will not cause any damage to the atmosphere