Steam turbines nuclear power applications

The first three boiler types may be variously used for commercial, institutional, or industrial applications. Fire tube boilers also may be used for steam turbine generator duty at lower electrical outputs, whereas only WT and nuclear reactor boilers are employed for utility power generation. 

Conductivity measurement with contact electrodes is used in many different process analytical applications. In all of them the main interest is to detect the presence of ionic species in the sample. The effectiveness of distillation and demineralization units is normally controlled by continuous measurement of the conductivity of the outgoing stream. Any defect in the operation of the unit can immediately be seen in the increase in conductivity. The feeding water to steam turbines has to be as clean as possible in order to avoid corrosion in the system that operates under high pressure and at elevated temperatures. The conductivities of feeding water as well as the condensed steam are also continuously monitored by conductivity measurement. Increased conductivity is an immediate indication of corrosion in the system or leakage in the cooling system. This is of extreme importance in nuclear power plants where among other risks corrosion products may also become activated. 

When discussing steam turbines one needs to keep in mind that these are applicable for nuclear plants also. Refer to Fig. XII/3.0-1 to see that the turbine generator part in both cases is the same. In nuclear applications, naturally reliability and availability are of immense importance. Similarly, in fossil fuel power stations, if turbine safety is compromised, then the high-cost turbine cannot survive and would incur huge financial loss. There following points need to be considered for turbine control and safety systems ... 

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