METHOD AND APPARATUS FOR THERMOACOUSTIC COOLING

1 - 26 . (canceled)

27 . Apparatus comprising:

at least one transducer comprising a displacement component that is configured to move upon application of an electrical signal;

a cavity in communication with the at least one transducer; and

at least one thermodynamic member within the cavity configured to readily exchange heat with a cavity gas or fluid, wherein the transducer is configured to generate a standing wave within the cavity to transfer heat along the thermodynamic member.

28 . The apparatus as claimed in claim 27 , wherein the thermodynamic member comprises a substrate.

29 . The apparatus as claimed in claim 28 , wherein the substrate comprises at least one of:

at least two layers of thermodynamic material; and

at least two tubes of the thermodynamic material.

30 . The apparatus as claimed in claim 27 , wherein the cavity is substantially sealed at at least one end.

31 . The apparatus as claimed in claim 27 , further comprising a heat sink configured coupled to a first end of the at least one thermodynamic member.

32 . The apparatus as claimed in claim 31 , wherein the heat sink comprises at least one of:

a cover region of the apparatus; and

a battery of the apparatus.

33 . The apparatus as claimed in claim 31 , further comprising a first heat conductor coupling the first end of the at least one thermodynamic member to the heat sink at a higher pressure region of the cavity.

34 . The apparatus as claimed in claim 31 further comprising a heat source configured to be coupled to a second end of the at least one thermodynamic member.

35 . The apparatus as claimed in claim 34 , wherein the heat source comprises at least one of:

a processor;

a radio frequency engine;

a baseband engine; and

a projector light source.

36 . The apparatus as claimed in claim 34 , further comprising a second heat conductor configured to be coupled to the second end of the at least one thermodynamic member of the heat source at a lower pressure region of the cavity.

37 . The apparatus as claimed in claim 27 , wherein the cavity is a resonator.

38 . The apparatus as claimed in claim 37 , wherein a first transducer is located at one end of the resonator and the opposite end of the resonator is sealed.

39 . The apparatus as claimed in claim 37 , wherein a first transducer is located at one end of the resonator and a second transducer is located at the opposite end of the resonator.

40 . The apparatus as claimed in claim 27 , wherein the at least one thermodynamic member is a material comprising a high heat capacity and a low thermal conductivity.

41 . The apparatus as claimed in claim 27 , wherein the at least one transducer is further configured to generate an acoustic wave at an audible frequency.

42 . A method comprising:

controlling at least one transducer comprising a displacement component to move upon application of an electrical signal;

coupling a cavity with the at least one transducer; and

locating at least one thermodynamic member within the cavity, wherein the at least one thermodymamic member exchanges heat with a cavity gas or fluid;

wherein controlling the at least one transducer generates a standing wave within the cavity and transfers heat along the thermodynamic member.

43 . The method as claimed in claim 42 further comprising substantially sealing the cavity at at least one end.

44 . The method as claimed in claim 43 , further comprising coupling a first heat conductor to a first end of the at least one thermodynamic member at a higher pressure region of the cavity.

45 . The method as claimed in claim 44 , further comprising coupling a heat source to a second end of the at least one thermodynamic member.

46 . The method as claimed in claim 45 , wherein coupling a heat source to a second end of the at least one thermodynamic member further comprises coupling a second heat conductor to the second end of the at least one thermodynamic member of the heat source at a lower pressure region of the cavity.