When used for the purpose of controlling the...

Question 1 / 2066636ef128f7522a1c521af3

Question 1 of 2066636ef128f7522a1c521af3

When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013

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Question 1 of 20

66636ef128f7522a1c521af3

When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013

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🔍 Key Concepts

• Spray-type desuperheater/attemperator function in a main steam system • Normal source of cooling water for main steam temperature control (think: where clean, high‑pressure water is already available) • Where in the system superheated main steam flows relative to the desuperheater (upstream vs downstream of superheater)

💭 Think About

• Look at the arrows and labels in the illustration: is the steam entering the device already superheated main steam, or steam that has already been cooled? • In a typical marine boiler plant, which line (feedwater line or condensate line) operates at a pressure suitable to be sprayed directly into the main steam line? • If this device is meant to control main steam temperature, should it be installed on the outlet of the superheater or on the outlet of the desuperheater?

✅ Before You Answer

• Confirm from the illustration that steam is entering from the main steam line/superheater outlet side, not from a cooled steam line. • Check which source – feedwater vs condensate – is normally at the correct pressure and purity to inject into the main steam line for temperature control. • Make sure your chosen answer pairs a realistic water source with steam coming from the correct side of the superheater (upstream vs downstream).

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Question 1 of 20

When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013

The source of water is feed water and the source of steam is the desuperheater outlet.

The source of water is condensate and the source of steam is the superheater outlet.

The source of water is feed water and the source of steam is the superheater outlet.

The source of water is condensate and the source of steam is the desuperheater outlet.

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Question 1 / 2066636ef128f7522a1c521af3

Question 1 of 2066636ef128f7522a1c521af3

When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013

Back

Question 1 of 20

66636ef128f7522a1c521af3

When used for the purpose of controlling the temperature of main steam, what is the source of water and steam for the illustrated device? Illustration SG-0013

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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