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Hi ramset quite right the time to heat a fixed quantity of water and of course the power taken! Consider for a moment a holiday tea maker this sort of thing Travel Immersion Water Heater - Dual Voltage | Going In Style Travel Accessories
so you plug the thing in and it pulls 4 amps come hell or high water, as you pointed out ramset that is effectively resistance heating, every second that passes the water heats up by the same amount!
If you drew a graph of temperature to current it would be a straight line! This indeed is exactly how the classical explanation of water heating works!
With “The spoons” and presumably Peter Davey's contraption Linear “anything” is out of the window, watch the meter carefully and you will see its anything but linear.
This means of course that the Impedance of the circuit is changing throughout the heating operation ….. frequency obviously comes into play now! In short we are now searching for the maximum change of temperature in the minimum time for the least amount of current and then tune these cones (or the flow of water) to that point. Moving water (as in the Russian guys machine) is a very different proposition quickly try this and you will see,
half fill a test tube with water,put a cork in the end, heat the test tube and time how long it takes to blow the cork out.
Repeat the experiment only this time just heat the test tube until the water is just starting to simmer,
Turn the test tube through 90 deg and watch what happens, clean the floor and then dig the cork out of your dry wall.
Its a bit of a task to tackle over a forum, there are so many variables different voltages,different frequencies,and if this thing wont work with milk in it what about mineral content, hard water and soft water ect ? Even our measuring systems are different Deg C and Fahrenheit BTU s and so it goes on. all told are we not perhaps trying to “tune to the water” In our particular area? Not that there is anything wrong with that we are all just trying to learn “how to”
so you plug the thing in and it pulls 4 amps come hell or high water, as you pointed out ramset that is effectively resistance heating, every second that passes the water heats up by the same amount!
If you drew a graph of temperature to current it would be a straight line! This indeed is exactly how the classical explanation of water heating works!
With “The spoons” and presumably Peter Davey's contraption Linear “anything” is out of the window, watch the meter carefully and you will see its anything but linear.
This means of course that the Impedance of the circuit is changing throughout the heating operation ….. frequency obviously comes into play now! In short we are now searching for the maximum change of temperature in the minimum time for the least amount of current and then tune these cones (or the flow of water) to that point. Moving water (as in the Russian guys machine) is a very different proposition quickly try this and you will see,
half fill a test tube with water,put a cork in the end, heat the test tube and time how long it takes to blow the cork out.
Repeat the experiment only this time just heat the test tube until the water is just starting to simmer,
Turn the test tube through 90 deg and watch what happens, clean the floor and then dig the cork out of your dry wall.
Its a bit of a task to tackle over a forum, there are so many variables different voltages,different frequencies,and if this thing wont work with milk in it what about mineral content, hard water and soft water ect ? Even our measuring systems are different Deg C and Fahrenheit BTU s and so it goes on. all told are we not perhaps trying to “tune to the water” In our particular area? Not that there is anything wrong with that we are all just trying to learn “how to”
Originally posted by RAMSET
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