Steam turbine piping arrangements

When a steam turbine piping arrangement is being developed, it is important to avoid the introduction of... 

EXHIBIT 8-30 Typical Steam Turbine Piping Arrangement... 

Fuel elements are arranged in a reactor water pool. A reactor core consists of two or more fuel elements, control rods, etc. within the pool. Steam pipes are bundled and led to a steam turbine, Fig.XIII-3. Cross-type control rods are inserted between the fuel elements from the top. 

The secondary circuit was then used to heat the steam for the turbines. One major problem was the NaK/steam heat exchanger. In the gas-cooled reactors, the hot gas flowed through pipes which ran through the boilers. This had obvious problems for a sodium-cooled system. Water and sodium/potassium react together very violently even at room temperature, and one of the products is hydrogen, which can form an explosive mixture with air, so any arrangement where the two could mix as a result of a leak had to be avoided. A different system had to be devised ... 

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