Recent content by LuZ

I'm going to blatantly refer to the links I've put together here: http://www.mecheng.adelaide.edu.au/anvc/thermoacoustics/index.php?option=com_weblinks&Itemid=23

The interior is largely featureless so the operating mode is typically of very http://en.wikipedia.org/wiki/Q_factor" (low damping). There are of course harmonics associated with the operating frequency, but are usually of insignificant level.

It is: believe it :smile: Provided that the structure is not driven at a resonant frequency, it's due to the high structural impedance to the operating frequency, and poor re-radiation of vibration at the external surface. Also, it's 176dB to 51dB(A): the 'A' weighting is also a factor here.

That's the internal sound pressure level. You'll find that the 'noise' amplitude inside a typical thermoacoustic refrigerator is in general, similar or less than that of a typical vapour compression system, so the expectation in external noise levels should be similar. A system I built myself...

I'm trying to build up a knowledge base on this here http://www.mecheng.adelaide.edu.au/anvc/thermoacoustics/