Question 225Steam Plants - 1st Asst/Chief70% to pass
A basic comparison can be made between a low pressure evaporator operation and a main condenser with regards to the removal of non-condensable gases. The vacuum drag line for the main condenser is specifically connected in which area?
AI Explanation
The correct answer is C) air cooler section.
In a main condenser, the vacuum drag line is specifically connected to the air cooler section. This is because the air cooler section is where non-condensable gases, such as air, accumulate and need to be removed to maintain the desired vacuum in the condenser. Connecting the vacuum drag line to this area allows the non-condensable gases to be effectively evacuated, improving the condenser's overall efficiency.
The other options are incorrect because: A) the hotwell is not the location for the vacuum drag line, B) the steam lane does not contain the non-condensable gases, and D) the main tube bank is not the appropriate location for the vacuum drag line connection.
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