Marine Engineers

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Stanley
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Re: Marine Engineers

Post by Stanley » 16 Nov 2016, 07:59

See THIS for a Wiki article on the Russian aircraft carrier Kusnetsov. What brought it to my attention was the footage of it when it passed through the Channel recently and the more recent footage of it on station in the Mediterranean. In both cases it was putting out excessive amounts of smoke. Far more than one would expect from efficient oil-burning boilers in good condition and well maintained. What does this say about the state of the vessel? If you look at the specification in the Wiki article you'll see that it has oil-fired boilers which surprised me. A fine looking vessel but she is 31 years old and on the evidence of the smoke isn't in tip top condition!

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Re: Marine Engineers

Post by Tizer » 16 Nov 2016, 10:37

The smoke has even caused consternation in Russia with commentators saying it makes Russia look bad. Some say the ship's crew are not properly trained, others that it's due to the very dirty, cheap oil they are using, and others again claiming it's a normal thing to clear out soot and is usually done at night by warships. Pluggy might be able to enlighten us! See this Russian web page: LINK and the photos on this China page (but don't bother trying to read it!): LINK

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Re: Marine Engineers

Post by Invernahaille » 17 Nov 2016, 01:29

Thomo,
I was with Ellerman Lines, the City of Banarres was a beautiful ship, a twin funneled steamer. Ellermans never built another twin stack ship after that terrible incident. A German Submarine torpedoed it when it was carrying child evacuees to Candada. The innocent victims of war.

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Re: Marine Engineers

Post by Stanley » 17 Nov 2016, 04:28

I've had a bit of experience with carbon fuels and smoke.... Coal exhibits exactly the same behaviour if the combustion conditions are wrong. I'll go into it in depth on steam engines instead of writing it twice.....
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Re: Marine Engineers

Post by Invernahaille » 17 Nov 2016, 14:58

Talking about exhaust Emissions the link below is to a clip of my last Ship. MV Hebridean Princess.
Twin Crossley 8 Cylinders. Built 1964. No matter how you tuned them, We could never get the emssions right. God I tried.


https://youtu.be/_xX3927EkPo

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Re: Marine Engineers

Post by Stanley » 18 Nov 2016, 04:08

Love the clip Robert......
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Re: Marine Engineers

Post by Stanley » 19 Nov 2016, 07:47

Thinking about your smoke problems Robert. Were the engines turbocharged? If so you were on a hiding to nothing in the days before computer control to limit fuel supplied to the engine for a sudden demand for power before the turbochargers had time to spool up and supply the necessary air. It certainly looked as though that was the problem in the clip. Turbo lag has always been a problem.
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Re: Marine Engineers

Post by Invernahaille » 23 Apr 2017, 16:44

Yes they were Turbo Charged Stanley.

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Re: Marine Engineers

Post by Stanley » 24 Apr 2017, 03:41

That was what you might call a slow burner Robert but no less welcome for that. How are you? I'm in good nick but fighting my own design problems with the tiny valve gear on my latest exercise in the shed!

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Re: Marine Engineers

Post by Invernahaille » 25 Apr 2017, 22:06

Lost my password Stanley. Been a hectic last six months have moved to Tennessee. Davy Crockett country.

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Re: Marine Engineers

Post by Stanley » 26 Apr 2017, 02:42

Have you bought a coonskin hat? You'll be a bit warmer than us, we are having a last bite at winter.....
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