Sax notes lead to off-beat Sonic Boiler
Posted by keelynet on February 5, 2008
“Inventor and saxophone player Peter Davey has come up with a device that he claims boils water in no time. He calls it the “sonic boiler” because he claims it uses the power of sound. How the heater actually works has confounded experts. The device looks oddly like a bent desk lamp, with a metallic ball at the end instead of a lightbulb. When plugged into the power supply, and the ball is lowered into water, it boils the liquid within seconds — even as little as a tablespoonful. “The principle is beautiful. I have cashed in on a natural phenomenon and it’s all about music,” he said. The Press invited a retired Canterbury University engineer, Professor Arthur Williamson, to look at the boiler and he was stumped. He watched Davey boil various quantities of water, took notes of the energy used and temperatures reached. He left scratching his head. “I don’t know enough about sound to know whether you can transfer that amount of energy via soundwaves. I doubt it,” said Williamson. He did remember an alternative kettle years ago that had two perforated metal plates inside. The power ran between the plates, through the water. “The resistance through the water provided the load. I wonder if it isn’t working like that? Without taking it to bits, you can’t tell.” The kettle was specially designed to prevent people getting a shock from touching the boiling water.” – Source
“It looks like a desk lamp, is cool to the touch and appears not to be doing anything, until it comes into contact with water. Former spitfire pilot Peter Davey claims his invention uses the power of sound to boil water. Mr Davey believes high frequency sonic vibrations emitted from within the silver bulb cause the water to boil. He says the idea came to him 50 years ago when he noticed different saxophone notes caused different household items to rattle. The mains-powered gizmo has experts intrigued. “I’ve never seen anything like it in my live,” Professor Arthur Williamson said. The Professor has his doubts about Mr Davey’s acoustic theory and suspects there are two simple electrodes inside the boiler. “I’m careful that I don’t divulge everything,” Mr Davey said. “I’m waiting to get a manufacturer that is prepared to put some money into it.” – Source
And some tech info from my own archive.
“The design of the Davey’s sonic heater is extremely simple. It actually is composed of two major parts only – see Figure K8 (3) from monograph [1/4]. The most important out of these two parts is a resonating hemispherical bowl (1) made of a sound inducing metal plate. The second part is a buffering hemispherical bowl (2) almost identical in shape to the bowl (1). This second bowl has the radius around 4 mm larger than the resonating hemispherical bowl (1). Both bowls are assembled symmetrically one around the other, means the hemispherical bowl (1) is placed inside of the hemispherical bowl (2). Coin is 32 mm wide = 1.25984 inches / Big bowl approximately 1.75 inches wide and .75 inches thick / Small bowl approximately 1 3/8 inches wide. Of course, apart from these two bowls, the heater also includes a long rod, nuts, washers, and electrical wires. These are to hold it together, to supply electricity to both bowls, and to allow the heater to be submerged into water that it heats. But these other parts are marginal additions only. The major parts are the bowls. During experimental production of this heater, the resonating hemispherical bowl (1) usually is made from an old cover for a bicycle bell. The dimensions of this hemispherical bowl are not important. It is only vital that it falls into a sonic resonance at the frequency of 50 Hertz, and that it has the outer surface which is parallel and equidistant from the external buffering hemispherical bowl (2). To each of these two bowls a different wire of the household electricity supply (i.e. 220 V, 50 Hz) is connected. The heater must be submerged in water that it heat. It brings water to the boiling point extremely fast.”
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