Question 225Steam Plants - 1st Asst/Chief
70% to passA 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?
Ahotwell
Bsteam lane
Cair cooler section
Dmain tube bank
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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