A vent line is provided on each water box of...

A vent line is provided on each water box of...

Question 1 of 270705eccef9cbacbc34ba4d45746

A vent line is provided on each water box of the main condenser in order to prevent __________.

Question 1 of 27070

Q

A vent line is provided on each water box of the main condenser in order to prevent __________.

🔍 Key Concepts

• Main condenser circulating water path and water box function • Purpose of vent lines in closed or partially filled systems • Effect of trapped air or non-condensable gases on pump performance and heat transfer

💭 Think About

• Think about what happens inside a water box if air is trapped at the top and cannot escape. How does this affect the pump suction and discharge conditions? • Consider how a layer of air or gas between cooling water and tube surfaces would influence the condenser’s ability to remove heat. • Ask yourself whether venting mainly protects the pump, the heat transfer process, both, or is intended for some other reason entirely.

✅ Before You Answer

• Verify how air pockets can change the effective water level and pressure seen by the circulating pump. • Consider whether heat transfer depends on full water contact with tube surfaces or whether air pockets would significantly interfere. • Check if vent lines are primarily installed to remove air/non-condensables from the highest points, and what specific problem that is intended to prevent.