A Safe and Cheap Nuclear Reactor
Nuclear reactors were designed in the most and dangerous and expensive manner possible. The procedure is to combine all of the reaction rods in one place, called the pile, and expect oceans of water to contain the energy. The minute something goes wrong, steam explosions destroy the environment including the safety mechanisms.
Cheap and safe nuclear reactors can be designed using reaction rods that are horizontal instead of vertical. This way they can be spread out and not interact with each other.
There are two components to the rodsan outer sleeve and inner core, both radioactive. Pulling out the core cools the reaction.
For more control over temperature, there could be two or three sleeves for each rod.
A few rods could be used for small designs, or multiple rows for large designs. Since the rods do not interact with each other, safety is greatly increased. Even a melt-down of a rod would not spread to other rods.
The temperature of the reaction chamber can be controlled by the rate at which the heat is carried away, which in turn can be controlled by the rate at which the steam is used or its pressure is allowed to drop.
With just a few rods, small units can be used, which makes them practical for the developing world. Being safe, they can be located close to consumers eliminating the expense of long transmission lines.
Heat can be conducted out of the reaction chamber through metal rods and create steam in another chamber. This prevents radioactive contaminants from leaving the reaction chamber. Mineral oil can be used in the reaction chamber. It will tolerate 200°C, so it would be heated to about 150°C.