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, ...

There should be a Hydrostatic pressure balance between the water outside and the oil inside, because Sea Water is more dense than oil the stern tube header tank is always higher then the Sea Water outside, in proportion to the different SGs. Has the Draught aft increased ? That might cause Sea water...

There used to be a lot of Canadians working in the North Sea employed by British Companies on British Ships, through British Agencies, the North Sea is picking up again so may be worth having a try. They will pay your Air Fares for each trip.

All valves connected to the ships shell or side plating have to be spheroidal Graphitic cast iron or cast steel, if they fracture and break off the ship will sink! Similarly if the pipe between your Fresh Water Generator and the overboard valve rusts through- Hot concentrated Salt Water so very like...

The size of the Gravity Disc is chosen according to the specific Gravity of the oil to be purified at the temperature at which the oil will be purified.

https://www.imarest.org/themarineprofes ... il-bunkers


Another report on the same voyage.

Interesting 22,00 litres for a voyage, looks to be a small feeder container ship, maybe 1590 NRT, 3,000 DWT, about 3,000 kW. Doesn't say what the length of voyage is, or if the fuel was used for everything or just the auxiliaries. They burnt 22,000 litres of Bio Fuel, maybe 19 tonnes in total and &q...

Lots of ways to use the waste heat, boiler in the exhaust stack, use the engine cooling water and trubo charger air coolers to preheat the feed water and generate steam to drive a steam turbine and either generate electricity or mechanically feed the power back into the shaft. Turbo chargers are so ...

This sounds like a fantastic idea if true. I imagine that there would be considerable economies of scale, and because installing the plant on the ship has a capital cost, maintenance cost and causes loss of earnings due to the volume and weight taken for the plant, and also will require Man hours to...