Question 262Steam Plants - 1st Asst/Chief

The correct answer is B) Main condenser absolute pressure will increase. If the cooling water flow through the air ejector inter condensers and after condensers is inadequate, it will result in a decrease in the efficiency of the air ejector system. This will cause the main condenser absolute pressure to increase, as the air ejector system is responsible for maintaining the vacuum in the main condenser. The other options are incorrect because: A) Air ejector nozzles eroding is not a direct consequence of inadequate cooling water flow. C) DC heater level rising is not related to the issue of inadequate cooling water flow. D) The after condenser being flooded is not a likely outcome of this specific problem.