Hi the Sun, Interesting questions, I joined my first ship in 1973, she was a fairly standard refrigerated Cargo ship built in 1953, to a 1936 design, oil fired steam turbine Engines with a service speed of 15.5 knots, max 17kts equivalent to 372/ 408 Nautical Miles per day. We steamed from New Zeala...

I just saw this article, about an alternative to Sea Water Distillation or Reverse Osmosis Plants, I wonder when it will appear on ships?


https://engineering.columbia.edu/press- ... salination


BP

If the sludge production has increased suddenly: - 1) Has the quality of the fuel changed? i.e. have you started using a new batch of Bunkers, or maybe your new Bunkers are not compatible with the previous Bunkers and the reaction between them is creating this sludge. 2) Is the purifier actually dis...

Safety is an attitude of mind, learning lots of "Factoids" to answer multiple choice questions, marked by machine, does not test understanding or attitudes to safety.
Big Pete

A very sad truth.
I think it is solid evidence that despite the introduction of STCW etc the standard of Seafarer training is declining rather than improving.
B.P.

I agree that it has to be something to do with the overhaul and it very much sounds as if exhaust gas is blowing into the cooling water. You say that the water level goes up when you start the engine, does it go down again when you stop it? This is what you would expect if Gas was leaking in. If the...

The temperatures are far too cold, you could have cracked the castings running them that cold and you may be getting gas blow from the cylinders into the water. I had cracked heads on one ship with MaK Medium speeds, we didn't lose any water, but when the power came up (and the cylinder pressures) e...

When I was a Junior Engineer, back in the 70's, I joined a ship called the Strathleven, (ex Middlesex, ex Jellunga) that had been built in 1953 with twin RSG Sulzers. Before I joined, the Third on watch had heard a knocking noise from one cylinder and gone to get a screwdriver to use as a stethoscop...

Oh Merlyn!

Trike has been long banned, very nasty stuff.

BP

I recently had an email from an old Cadet of mine and he told me that he was on a Diesel Electric PSV, and they had found that the Electromagnetic field from their 3 phase 690 Volt power cables was inducing a circulating voltage in the pipework! Which I had never heard of before, might be relevant.
BP

Possibly while the system was drained down for the overhaul work, the insides of all the cooling system corroded and this is now coming into the cooling water. Unitor /Wilhelmsen etc make a commissioning cleaner for de-greasing and de rusting new pipework systems, maybe a power flush with that follo...

Many years ago, I had a problem with a Paxman 4RPH, got a high exhaust temp alarm, seriously high and stopped it, Chief, Third and myself spent a week working on it trying to find the problem, 16 hours on 8 off. No Instrumentation on the engine, just a single exhaust gas thermometer after the Turbo....

I have had this experience several times and I have heard possible explanation, firstly you must remember that TV sets are designed for use ashore where the power supply consists of one live wire and a Neutral wire which is connected to Earth at the Star point of the supply Transformer. On a ship we...

I suspect that the impressed Current system is either not working correctly or is set up wrongly. Go back to the Instruction Manual and see if there are set of settings for the "as installed" condition" and see if they are still the same. It looks as if there is too much current flowi...

Poor cooling water treatment. The pipe work is rusting to form Black Iron Oxide (due to lack of Oxygen) which is dissolving in the circulating water and being deposited by Galvanic action onto the Heat Exchanger Plates which are less re active than the steel pipes.# Same as the steel Hull corrodes, ...