If the gland assembly shown in the...

Question 1 / 2066636ef128f7522a1c521450

Question 1 of 2066636ef128f7522a1c521450

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead, __________. Illustration SE-0006

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Question 1 of 20

66636ef128f7522a1c521450

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead, __________. Illustration SE-0006

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🔍 Key Concepts

• Forward end steam turbine gland behavior at full speed ahead • Pressure relationships between the HP turbine inlet and the atmosphere at the shaft exit • How self-sealing glands work versus when sealing steam supply is required

💭 Think About

• Look at the forward end of the HP turbine: is steam pressure inside the casing higher or lower than the pressure at the shaft passage to the atmosphere? • If the internal pressure is higher, in which direction will steam naturally leak through the labyrinths, and what does that do to the need for outside sealing steam? • Compare what must happen at points E and F to keep steam from escaping to atmosphere while the turbine is operating at full power.

✅ Before You Answer

• Identify whether this is an ahead end or astern end gland and what that means for pressure at the rotor side versus the atmospheric side • Decide if the gland at full ahead is self‑sealing (no outside steam needed) or requires sealing steam admitted at E, F, or both • Verify which connections, if any, are used to supply sealing steam and which are used to remove leaked steam or maintain vacuum

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Question 1 of 20

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead, __________. Illustration SE-0006

this gland would be self-sealing and provide sealing steam to the other glands

A slight vacuum would exist at "E"

sealing steam would only enter at "F"

sealing steam would enter at "E" and "F" from the LP turbine

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Question 1 / 2066636ef128f7522a1c521450

Question 1 of 2066636ef128f7522a1c521450

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead, __________. Illustration SE-0006

Back

Question 1 of 20

66636ef128f7522a1c521450

If the gland assembly shown in the illustration is located at the forward end of the high-pressure turbine and the vessel is operating at full speed ahead, __________. Illustration SE-0006

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed