On a main propulsion turbine set of a...

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Question 1 of 2066636ef128f7522a1c521622

On a main propulsion turbine set of a merchant ship, where is the astern staging generally located?

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Question 1 of 20

66636ef128f7522a1c521622

On a main propulsion turbine set of a merchant ship, where is the astern staging generally located?

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🔍 Key Concepts

• Location and function of astern blading/staging in marine steam turbine propulsion plants • Differences between high-pressure (HP), intermediate-pressure (IP), and low-pressure (LP) turbine casings on a merchant ship • How ahead and astern power are typically arranged in a single main propulsion turbine set

💭 Think About

• Think about which turbine casing normally handles the lowest steam pressure and largest volume flow for ahead operation, and how that might affect where astern blading is placed. • Ask yourself: on a single main turbine set, is astern power usually obtained from an entirely separate turbine, or by including special blading in one of the existing casings? • Consider which part of the turbine train is mechanically convenient to reverse thrust through the main reduction gear and shafting.

✅ Before You Answer

• Verify which turbine (HP, IP, or LP) usually exhausts to the condenser, and how that relates to adding astern stages. • Confirm whether typical merchant ship main propulsion sets use a separate astern turbine or integrate astern stages into an existing turbine casing. • Check standard marine engineering diagrams in your reference text to see where astern blading is drawn relative to the HP, IP, and LP turbines.

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Question 1 of 2066636ef128f7522a1c521622

On a main propulsion turbine set of a merchant ship, where is the astern staging generally located?

Back

Question 1 of 20

66636ef128f7522a1c521622

On a main propulsion turbine set of a merchant ship, where is the astern staging generally located?

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?

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