This is not physically possible. The heat (temperature) transferable from the heaters to the core, even with the lowest possible water flow, cannot greatly exceed 100 C with a design where water separates the exterior heater from the reactor; and water is also surrounding the interior heater for most of its length. All the electrical energy goes to raising steam instead of heating the core.
-----Original Message----- From: Akira Shirakawa So, are you suggesting there is a core surrounded by water, like this? http://i.imgur.com/pwZW2.png
