if you ever owned white car or boat in Singapore you would know.
They get black streaks on them, same as any port city.
The boat covers will get black goo on them after a few years from the straining the water
I will take a photo tomorrow
so there will be zero chance of zero emissions with ship engines as we know them today.
I would be happy if they would be just lower.
yep the last improvement in shipping was when they moved away from coal
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Not being an Engineer of any stripe, I can just âguessâ that slow steaming with large ships w/scrubbers burning HFO, (or ships burning LSHFO) on their low RPM engines, reduce the temperature and thus reduce both the GHG emission as well as soot and NOx emission. (??)
No I have never owned a white boat, or white car in Singapore, but I have lived in houses and buildings with white wall, external and internal in different parts of Singapore over the years.
Yes they do need a fresh coat of paint after some years, partly because of black carbon in the air.
BTW; have you seen picture of black snow and ice in the Arctic and Antarctic? It is everywhere, even where there is little local pollution.
PS> I havenât owned a car of any colour, in Singapore or Norway, since 1994.
Some Shipowners/Managers are pressing for faster de-carbonisation of shipping:
The biggest immediate effect of that change was that âwe got ride of those F*cking Stokersâ according to an old Captain that received a medal from the King of Norway.
There appears to be some that agree with powerabout (at least to a degree)
Has the whole thing been âover thoughtâ??:
OK maybe not entirely in the same way as powerabout sees it.
EU think that not enough is being done and not fast enough:
I applaud those who try to reduce the pollution from ships as the engineering is interesting but in the grand scheme of things the difference that will make is only in political points. Then you have India and China.
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IMO I would say it was the transition from steam to diesel. If I recall correctly, the rule of thumb was that motor ships consumed ~60% of what steam ships consumed of equal power. I spent most of my career on steam plants and loved their simplicity on one hand (boil water to spin a turbine) and the complexity of their auxiliary systems but saw the light when diesels replaced them.
At its core the maritime industry moves product which cost money. Cost and efficiency will be the driving force to do that. Even with regulations it is how to meet them in a cost efficient manner. I read with interest the on going experiments with Flettner Rotors, Sails, Fuel Cells, Electric Power and the like. Some of the efforts revolve around harnessing the âfreeâ energy around us. Pure electric (battery/fuel cell powered) moves the energy generation off-sight to where hopefully the cost and scale make it worthwhile to do so. Hybrid systems target operational efficiencies to make them worth the money. In the end it all boils down to money.
I also agree with @Steamer in his post about GHG.
Quite often dealing with one pollutant causes an increase of another. It can look like a game of âWack a Moleâ but some pollutants are worse than others. Being an engineer I hope technology will enable us to move towards a better solution.
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China is also shutting down obsolete coal fired power plants:
https://www.reuters.com/article/uk-china-coal-power/china-aims-to-shut-8-7-gw-of-coal-power-by-year-end-regulator-idUSKBN1WF05O#:~:text=SHANGHAI%20(Reuters)%20-%20China%20will,smog%20and%20greenhouse%20gas%20emissions.
And spending a lot on renewable energy:
https://www.globalcitizen.org/en/content/china-spends-three-times-as-much-on-renewable-ener/#:~:text=For%20every%20dollar%20that%20the,China%20accounted%20for%20%24126.6%20billion.
There is a measure of the impact of the individual gases, it is called the Global Warming Potential or GWP.
Here is an EPA description: Understanding Global Warming Potentials | US EPA
we need a new power source for ships, hopefully it will come at the same price so as HFO fuelled 2 stroke IC so people will change, emissions being the selling point.
If its cheaper then a no brainer
Shut down BECAUSE OF or DESPITE Trump?
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Decarbonising shipping is a hot topic in Maritime media at the moment:
The UK (and ergo UK fleet) is moving faster -net carbon neutral by 2050 as opposed to IMO 50% reduction in 2050. Scotland even harder with net carbon neutral by 2045. I have a vessel renewal issueâŚ
One small step towards reduced emission from ships is to reduce fuel consumption on existing ships:
https://www.hellenicshippingnews.com/unifeeder-contracts-we4sea-for-fleetwide-vessel-performance-monitoring/
Every little step helps.
lol counldnt say
China is betting on Methanol as the Marine fuel of the future. (At least according to this article):
Maybe China is betting on the right solution?:
If so it is good news for Marine Engineers, (maybe??)
Japan is looking at producing Methane from CO2 captured at steel plants, using hydrogen produced with renewable energy as catalysator:
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