Question 258Steam Plants - 1st Asst/Chief70% to pass
Excessive condensate depression can result in _______________.
AI Explanation
The correct answer is B) decreased plant operating efficiency.
Excessive condensate depression, which is the reduction in the temperature of the condensate below the saturation temperature, can lead to decreased plant operating efficiency. This is because the lower condensate temperature means that less heat is being recovered from the exhaust steam, reducing the overall thermal efficiency of the power plant.
The other options are incorrect:
A) High condensate discharge temperature is the opposite of what excessive condensate depression would cause.
C) Insufficient condensate sub cooling is a separate issue not directly related to excessive condensate depression.
D) Overheated air injectors are not a direct consequence of excessive condensate depression.
Related Questions
#256 Salt water contamination of condensate could occur at which component? #257 Which of the conditions listed could prevent a centrifugal condensate pump from developing its rated capacity? #259 The duty engineer reports an alarm on the condensate observation tank oil sensor. Which of the following could be a possible cause? #260 While underway the engineer on watch reports the vacuum in the main condenser has been gradually decreasing. Which of the following could be a possible cause? #261 Excessively hot water returning to an atmospheric drain tank indicates _______________.