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Title          
Twin cylinder thermo-acoustic Stirling Engine... 
   
 
Abstract    
A precision-built twin cylinder twin piston thermo-acoustic Stirling engine. These engines are sometimes called Lag engines and sometimes called Lamina flow engines.
 
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Added By - quantum
Subject - Aeronautics and Astronautics
Document Type -
Video Duration - 00:01:14
 
 
 

 

Title          
Rijke Tube 
   
 
Abstract    
Rijke's tube turns heat into sound, by creating a self-amplifying standing wave. It is an entertaining phenomenon in acoustics and is an excellent example of resonance. P. L. Rijke was a professor of physics at the Leiden University in the Netherlands when, in 1859, he discovered a way of using heat to sustain a sound in a cylindrical tube open at both ends. He used a glass tube, about 0.8 m long and 3.5 cm in diameter. Inside it, about 20 cm from one end, he placed a disc of wire gauze as shown in the figure at right. Friction with the walls of the tube is sufficient to keep the gauze in position. With the tube vertical and the gauze in the lower half, he heated the gauze with a flame until it was glowing red hot. Upon removing the flame, he obtained a loud sound from the tube which lasted until the gauze cooled down (about 10 s). It is safer in modern reproductions of this experiment to use a Pyrex tube or, better still, one made of metal. Source : Wikipedia
 
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Added By - A Ghosh
Subject - Physics
Document Type - Course Lecture
Video Duration - moderate
 
 
 

 

Title          
Lamina Flow Stirling Engine 
   
 
Abstract    

This amazingly simple engine runs at 700rpm heated only by a small candle.

Thermoacoustic hot air engines (Sonic heat pump and refrigeration or thermoacoustic heat pump and refrigeration) of which nearly all are thermoacoustic stirling engines is a technology that uses high-amplitude sound waves in a pressurized gas to pump heat from one place to another - or uses a heat temperature difference to induce sound, which can be converted to electricity with high efficiency, with a (piezoelectric) loudspeaker.

This type of heat pump or refrigerator has no

 
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Added By - quantum
Subject - Energy
Document Type - Demonstration
Video Duration - 00:01:00
 
 
 

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