Theory: To use microwaves to create a tankless hot water system.
Date of Origin: December, 1987.
Description: A tankless hot water system that uses electromagnetic energy waves to heat water to the required temperature. A single line system with heaters located in the wall behind the sink, tub or shower. With temperature controllers located on the wall behind a single tap.
Heating water up to a temperature that is too hot to use and then storing that overheated water, only to cool it down to use it. There is huge energy waste in a hot water tank. Heating water up to a high temperature only to store that water until use is an enormous waste of energy. Only to cool it down to a usable temperature. This type of waste is no longer affordable.
This system proposes that a single water line be installed to all water features in the home or office. With a temperature controller on the wall and a heating unit behind the wall. The temperature control units are connected to a magnetron in the furnace or utility room by wire cable. Turning on the water flow also turns on the magnetron, The temperature control on the wall regulates the amount or power of the magnetron which sends an electromagnetic force along a coaxial cable to the heater unit and heats the water through antenna in the heater unit to the desired temperature.
These water heater schematics were adapted the from a microwave oven. It is doubtful they would work. But it works for the purpose of getting the idea across.
This is the heater tube.
Now there are lots of microwave water heaters around since the middle of the last century but none of them worked. Mostly because they were trying to heat too much water to quickly. Many of them are patented.
What the different here is in the heating tub. The concept was to slow down the water flow by expanding the water line at the point of the heater. Then divide the water flow into three separate flows by putting in a triple baffle with an antenna in each flow compartment. This enables the electromagnetic energy to heat the water in the time required. This is where all other heaters failed By trying to heat too much water a once. In most cases the water only needs to be heated to around 100 to 110 degrees which is not that hot.
Putting in an agitator or aerator in the heater tube may also help the microwaves heat the water as per vibrating the water molecules.
The only unknown here is the required strength and frequency of the magnetron. There are plenty of commercial magnetrons available. There are lots of different manufactures that could make a magnetron to the specifications required. Remember this is an entirely closed system so there would be no danger to users.
Hope you Enjoy.