How is the lube oil temperature controlled...

Question 1 / 205eccefa1bacbc34ba4d47248

Question 1 of 205eccefa1bacbc34ba4d47248

How is the lube oil temperature controlled in the pressurized lube oil system shown in the illustration? See illustration SE-0011.

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Question 1 of 20

5eccefa1bacbc34ba4d47248

How is the lube oil temperature controlled in the pressurized lube oil system shown in the illustration? See illustration SE-0011.

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🔍 Key Concepts

• Trace the lube oil flow path through and around the cooler on SE-0011 • Identify where the temperature-sensing element is located relative to the lube oil cooler outlet • Distinguish between controlling sea water flow and lube oil flow for temperature regulation

💭 Think About

• Follow the lube oil line from the pump discharge toward the bearings and note any branch that bypasses the cooler—what valve symbol controls that split? • Look for a temperature bulb or thermostatic symbol: is it sensing sea water temperature or lube oil temperature, and is it upstream or downstream of the cooler? • Ask yourself: in a steady‑flow turbine lube system, which is more precise and common—modulating sea water through the cooler, or diverting some of the lube oil around it?

✅ Before You Answer

• Verify whether the thermostatic element is in the lube oil line or the sea water line • Confirm if there is a bypass line around the lube oil cooler that rejoins the main lube oil header • Check if pump speed is shown as fixed or variable anywhere in the lube oil pump symbol legend

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Question 1 of 20

How is the lube oil temperature controlled in the pressurized lube oil system shown in the illustration? See illustration SE-0011.

Sea water flow through the cooler is adjusted by opening or closing the inlet valve.

A thermostatic valve diverts sea water flow around the cooler.

A thermostatic valve sensor determines temperature downstream of the L.O. coolers and the valve diverts lube oil flow through or around the cooler accordingly.

Lube oil flow through the cooler is adjusted by changing the speed of the lube oil pump.

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Question 1 / 205eccefa1bacbc34ba4d47248

Question 1 of 205eccefa1bacbc34ba4d47248

How is the lube oil temperature controlled in the pressurized lube oil system shown in the illustration? See illustration SE-0011.

Back

Question 1 of 20

5eccefa1bacbc34ba4d47248

How is the lube oil temperature controlled in the pressurized lube oil system shown in the illustration? See illustration SE-0011.

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