Motive steam quality

This corresponds to a steam quality of about 89%. This is the result of just the expansion of the motive steam. After it transfers momentum to the evaporator vapor, the enthalpy is lower and the quality correspondingly higher ... 

Therefore, I concluded that the shell side of the condenser must be fouled with hardness deposits from the poor-quality motive steam to the turbine. Thus, the shell side needs to be chemically cleaned. One hundred percent wrong ... 

Low standards of water treatment and waterside chemistry are generally caused by a combination of bad advice and lack of operator motivation or resources, and provide an initiator for the onset of downstream waterside operational problems. However, despite these apparent water treatment imperfections, most operators somehow still manage to function and produce steam of an acceptable quality and quantity, year after year ... 

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