Tranona
Well-Known Member
See Post#9. Small Volvo engines can be stopped by operating the lever marked STOP on the injection pump.
Afraid the horse has long since bolted ,
- Thread starter scottie
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AntarcticPilot
Well-Known Member
There is no plan, and unless the greatly reduced range of electrical drives can be addressed, it is unlikely that any such plan could be put into effect. In terms of emissions and CO2, the leisure boating industry is a drop in the ocean! Road vehicles can conveniently be recharged at roadside installations (I drive an EV), but there is no such infrastructure available for boats, and the electrical supply at marinas is not sized to provide the necessary current for hundreds of boats. My car requires a 7kw supply to charge overnight; that gives me a range of around 220 miles with a 65kw motor - around 4 or 5 hours motoring. Charging "while you wait" requires supplies of 50kW or more. Translated into boat terms, the same battery driving a 30kw engine (roughly equivalent to the VP2003 I have) would give me a range of maybe 60 miles under engine. And I'd have to find space for such a battery - it occupies most of the floor pan of my EV and is a significant weight; my EV is substantially heavier than similar ICE cars of the same size. But few if any marinas could provide a 7kW supply at each berth, and of course demand would have a VERY high peak on Sunday evening! Of course, those on moorings or at anchor would have to rely on solar panels and generators - and friends who ran a solar-powered narrowboat reckoned a week's (good) solar would give them a weekend pottering at 4mph along the rivers and cana;s!
Bear in mind that it's not just sailing boats; after all, we use wind energy most of the time! But MoBos require high power and long endurance. There is absolutely no way MoBo could store enough electrical energy to have a meaningful range.
Aardee
Well-Known Member
My 2005 Yanmar 4LHA-STPs are both fully mechanical with no electronic control.
Graham376
Well-Known Member
Diesel (Kerosine jet fuel) common rail piston aircraft engines also in use - E4 Series - Jet Fuel Piston Engines
Momac
Well-Known Member
At some point in the future diesel and petrol engines may no longer be available. In the meantime some electric and hybrid boats are being produced.
The A-Z of electric boats: 34 of the best hybrid and all-electric models in build right now
westernman
Well-Known Member
Hybrid boats have been produced for a long time.
Most cruise ships are hybrid - electric propellor pods powered from on board generators.
Same for train locomotives and of course the intercity 125. All electrically powered from electricity generated on board.
AntarcticPilot
Well-Known Member
That's very unlikely, as the provision of charging systems in remote places would require the use of ICE generators, at least unless portable fusion generators come into use!
Refueler
Well-Known Member
Hybrid and Diesel Electric trains / ships are completely different ....
The Diesel Electric Trains are such because of the control aspect of the train ... and on ships because again ... the constant speed diesel generators.
Hybrid is where both Fuel and Electric can each provide separately direct motion power.
westernman
Well-Known Member
That is a parallel hybrid.
Serial hybrids are also hybrids and equally valid and in many circumstances more efficient.
Momac
Well-Known Member
Diesel electric trains in the UK are used where the train travels in part on electrified railway and in part on non electrified railway.
PS Bi-mode would be a better terminology.
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Momac
Well-Known Member
Oil and therefore diesel will eventually be exhausted and before that so scarce as to be unaffordable.
AntarcticPilot
Well-Known Member
Not in our lifetimes, nor in our children's. I am a geologist; known reserves are ample and there are many unexplored basins. Most estimates fail to take into account that what is uneconomic to extract now will be economic in the future. However, I agree that whether we SHOULD extract it is another question, to which I would answer "Probably not, except as feedstock for chemical production". But scarcity isn't a good argument.
rogerthebodger
Well-Known Member
There is already alternates to diesel from crude oil
some people run their diesel on spent chip oil and petrol can come from plants based fuel.
Petrol already has a quantity of plant based alcohol
Refueler
Well-Known Member
Having been a 'driver' of Seismic boats and spent many hours talking with various in the Oil Industry ... AP mentions economic recovery ... we can also add to that evolution of recovery increasing yields of fields ... in early days a field was generally rated at 14% recoverable ... yes 14%. Each year or so as the field was worked - that figure increased ... but we still do not actually get majority of oil out of a field. The economics decides whether a field continues or not. Its a major reason that USA oil fields - many were capped for decades ...
Refueler
Well-Known Member
That may be some but many only had the diesel as constant speed generators. The motive power being electricity from the generators.
Diesel-Electric Locomotives
How do diesel electric trains work, and why do they need turbochargers? - Accelleron Industries charge! magazine
There is another Diesel train - that the constant speed Diesel engine powered hydraulics .... now you going to tell me that railway lines had hydraulic lines as well ??
Momac
Well-Known Member
Correct.
Or from OLE where available.
Momac
Well-Known Member
Yes but we must avoid having too many crops for fuel competing with crops for food .
Making enough fuel for diesel engines on a significant scale is not sustainable.
eg. Rainforest destroyed to grow palm oil to make HVO is not good.
Refueler
Well-Known Member
Being in the Fuel Business .... and blending FAME etc. I always said from the beginning that the levels of production to sustain the 'Bio' was never possible. It would also damage the fragile balance of food production in many of the poorest / worst arable lands ... where cash for Oil Seed would be too attractive over growing food to survive.
This is exactly what happened. Even UK and other rich farmland has suffered where vast tracts are put over to Rapeseed - destroying the rotational use of the land.
EU and other targets of Bio % in fuels has been delayed and actually reduced due to lack of volume .....
Graham376
Well-Known Member
Quite sustainable, we're sitting on millions of tons of coal which can be converted to fuel but the tree huggers won't allow it.
Momac
Well-Known Member
Using coal is the same as using mineral oil in that consuming fossil fuels is thought to be responsible for climate change.
Coal is not considered to be a sustainable fuel.