A basic comparison can be made between a...

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Question 1 of 205eccef9cbacbc34ba4d45741

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?

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🔍 Key Concepts

• Function of a main condenser in a steam plant and how it handles non‑condensable gases • Location and purpose of the air removal or vacuum drag line in relation to steam flow and condensate flow • Difference between areas where steam is actively condensing vs. where air/non‑condensables are collected and cooled

💭 Think About

• In a surface condenser, where will the highest concentration of non‑condensable gases naturally collect relative to the condensing steam? • Does it make more sense to remove air from the area where steam first enters, where condensate collects, or where the mixture of air and vapor is coolest? Why? • Which part of the condenser is designed specifically to cool and concentrate non‑condensables so they can be removed with minimal steam loss?

✅ Before You Answer

• Identify which choice corresponds to the section of the condenser that is intended for air cooling and collection of non‑condensables • Make sure the location you pick is not primarily for condensate storage or primary heat transfer from steam to cooling water • Recall that the vacuum drag line should be placed where removing gases causes minimum steam loss but maximum air removal efficiency

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