Marine Biodiesel fuels

Discussion in 'Boat Design' started by Greenseas2, Apr 26, 2006.

  1. Greenseas2
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    Greenseas2 Senior Member

    Coconut oil as biodiesel

    Ari, if there is enough people using coconut oil, getting a reasonable supply of the used cooking oils may be worthwhile in making biodiesel fuel. Recycling is recycling; however, using new coconut oil would push the price of the biodiesel too high to make it and still save over petro diesel fuel.
     
  2. solrac
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    solrac 100% sudaca

    Nice, but (excuse me) a little weird & absurd demonstration:
    Why not going a couple more steps on a kind of environmental friendly life?

    the home-made things we can produce let's see:

    - Shoes? can't we produce our own home made shoes instead of buying tnem at the store? maybe on some recycled cardboard & poliethilene bags? will save a couple of bucks..:D
    - Blankets? maybe the corn leafs we don't eat can be knitted for that use?:D
    - Cars? with a liitle skill, all the canned food metal envelopes will make a nice porsche 911?:D

    My point (with no offense) is that this line of work is nice, romantic but on long term will not be worthy. This "greenie" way of life goes for individualization, fragmentation of society, as each one of us hides on his own shell, the commerce, exchange, even all kind of interchange based society interaction is goin down. What will be the figure when all of us reach autosuficiency? Certainly won't survive the big Industrial Conglomerates, Companies, Financial System, and so on...
    What would we need anymore the concept of "Countries" "politic divisions" Free Trade Agreements" ? economy as we know it will stuck, our employments will end, money will lost its sense.... That is my view of a post-industrial society, more simmilar to the "Bourg" medioeval way of living...
    PS> ressembles me some of Gilligan Island tv show...:D :D
     
  3. Wellydeckhand

    Wellydeckhand Previous Member

    Does anybody know that the biodesiel could actually eat rubber in long run? fater than present fuel....... just got some info wanna verify it.:)
     
  4. Greenseas2
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    Greenseas2 Senior Member

    Biodiesel independence

    If those in the petroleum industry are afraid of becoming unemployed, it won't be from biodiesel producers an the individual level.....maybe later by commercial biofuel refineries. 46 cents a gallon for biodiesel still beats paying over $3 at the pump. The savings will buy a lot of rubber gaskets. Take a look at the world crude reserves, country by country, that was published today in the Wall Street Journal....not a whole lot left, and much of that which is left is in politically unstable countries. At any rate, those of us with biodiesel refineries are still ahead of supply and costs by a long distance. I like having the extra money that I'm saving from producing and using biodiesel in both boat and car.
     
  5. solrac
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    solrac 100% sudaca

    easy man... that's not the point :)
    was just an aproximation on futurology... what will possibly happen when all of us adopt this way of thinking.:D

    Also growing your own tomatoes on your backyard will save you a lot, but that's no reason to spend your weekends carving the land...
    Making your clothes from animal furs you've chased also is cheaper than buying Calvin Klein T-Shirts, not discussing that....;)

    Crude reserve estimations published by WS Journal are just the numbers ARAMCO wants the public to know, a clean (no guilty way) method for sustaining the U$70/barrel price...if real numbers got public, the petroleum barrel will drop down to U$20...
    You do really think Multinational Petroleum Companies statements are allways true? :D :D :D
    Jeeesuschrist..... and the Enron guys are Sisters of Mercy... :D :D :D
    About "politically unstable countries" think we must ask ourselves who is "making" them unstable and most important, why...
    Maybe can be a little clear: Major part of actual explotations gone on production on a U$25-U$30/barrel base price (1 barrel = 154lts), with costs on about U$15/barrel, and the Companies won a looooot of money on good old times... imagine same cost and a final price of U$70....

    By the way, Has any of you think why CIA was the former weapon provider for the Taliban movement? or why the skinny beared guy's family were Georgie's partners at his Texas Petroleum Firm? Quite simple, Afghanistan is the trace route for the major Russian pipeline to Europe, so, The guys in control of the country have the power to put Europe on it's knees...consequences: Old America wins & game over...(yeah, geopolitics sometimes stinks...:cool: )
     
  6. SamSam
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    SamSam Senior Member

    :( :confused:
     
  7. Greenseas2
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    Greenseas2 Senior Member

    Right you are about politics and oil companies.

    The article came from a group of scientists who monitor reserves of many basic items such oil, coal iron ore and so on. Being that I can have no affect on politics, other than vote, I'll just keep focused on biofuels for time being.
     
  8. Greenseas2
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    Greenseas2 Senior Member

    Bush and oil

    Sam. I have to laugh about everyone wanting Bush to do something about the oil prices. While money keeps rolling in to his ol' man's pockets, he'll just continue to play dumbg......or maybe it isn't an act. Still in all, an investment in a diesel car isn't a bad one in that the engine will probably outlast the body if it's taken care of. Alot of VW marine conversions came from rabbits when the body rusted out. One good situation is that those who are currently using biodiesel in their boats, cars and generators aren't worried about fuel prices.
     
  9. Vega
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    Vega Senior Member

    70% (or something like that) of the French cars are diesels and I guess in Europe, diesel car sales are about 50% of the market and growing. I have owned diesel cars for about 20 years and I have felt the huge improvements in those motors.
    Today there are racing cars with Diesel engines and if you think that diesel cars are slow, think again. With a gasoline car, to have the same power when you hit the throttle, you have to go down two gears. As you normally do not do that, the diesel car is a lot faster.
     
  10. Greenseas2
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    Greenseas2 Senior Member

    Power in diesels

    According to an article put out bu Hardy Dioesel (China Imports), their 6 hp diesel has the equivalent power of a gas 30 hp engine. I don't know what they are basing this on, but suspect torque.
     
  11. Tim B
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    Tim B Senior Member

    Could we differentiate between torque and power please?

    Two engines may give the same maximum power but have maximum torque at different RPMs.

    Traditionally, Diesels have providedmore torque at low RPM, whereas petrol engines produce more at high RPM. Typically, Diesels operate at upto 2500 - 2800 RPM, whereas petrols operate at 3500 RPM to 4000 RPM.

    (Yes I know the engines will spin upto god knows what RPM, I'm refering to typical operating range)

    Naturally, it is the job of the gearbox to convert this torque and RPM to useful torque at a sensible RPM for the propellor / wheels etc.

    In terms of maximum speed, that is down to the engine performance (ie the fall-off from peak torque at max RPM), and the gearbox providing the correct RPM to the wheels to obtain the maximum speed.

    One should be careful not to genaralise about Diesel and Petrol too much. Each system is individually designed, and that should be borne in mind.

    Tim B.
     
  12. Greenseas2
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    Greenseas2 Senior Member

    Right, you are

    I have a lot to learn about the difference in rated horse power and what it ranslates in to in usable horse power.
     
  13. Vega
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    Vega Senior Member


    Nah! It is easy to understand. I will try to explain that to you.



    Of course, but you forget to say that for the same HP, a diesel engine has a lot more torque, about 2,5X more for the same HP.

    Comparing two Ford Focus both with 2,0L engines, a gasoline one and a diesel one:

    HP, _Gasoline 145cv at 6000rpm ; Diesel 136cv at 4000rpm

    Torque, gasoline, 155nm at 4150rpm ; Diesel 340nm at 2000rpm

    "Though the 115bhp 1.8-litre TDCi is worth considering, if you really want to take advantage of the Focus excellent dynamics, the punchy 134bhp 2.0-litre TDCi engine (from £16,295) makes a capable partner. Backed up by a six-speed gearshift, it develops more torque than a Porsche Boxster S. “
    This means that as long as you keep the needle in the sweet spot around 2,000rpm, youll have plenty of acceleration in reserve whether its just you at the wheel or even if the car is fully stacked. It gets to 60mph in 9.3 seconds and will hit 125mph where conditions permit. Despite this muscle at the command of your right foot, the 2.0-litre model still manages an average of over 51mpg and emits 148g/km of CO2.”
    http://uk.cars.yahoo.com/car-reviews/car-and-driving/ford-focus-tdci-range-1004539.html

    If you have any doubts send me a message, I own a 1,8L sports car 150 hp (gasoline) and a 1,8TDCI (diesel) with 115 hp and I can tell you everything about the efficiency and differences between these types of engines.;)

    Now, back to boats:D
     
  14. gonzo
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    gonzo Senior Member

    The name "biodiesel" is largely propaganda. It implies some organic substance that is beneficial to the environment. Petroleum is a biofuel. We happen to have to pay for it.
     

  15. FAST FRED
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    FAST FRED Senior Member

    Years ago I tried to develop a Yacht Stove that would not have the dangers of Propane.

    The Brits were using Aceteline (like welders use) and its great ,
    lighter than air, burns clean and bright in cabin lamps,
    BUT the gas bottles are about 100lbs each.
    And various countries have endless burocracys , so filling on a cruise is IFFY.


    Those that grew up with a "Big Bang" cannon know accetelyne can be made from a powder.

    A trip to the library came up with a number of Acceteline Generators that were used for individual apartment complexes as a lighting gas source about 1900.

    Could never figure how to run a test unit on sea water (residue) so dropped the idea of being "Stove King" , mfg. to the world.

    Perhaps spomeone with a chemistry background could create an EZ to mix fuel?

    Diesel stoves ONLY stink when you are directly downwind from the exhaust , like a diesel engine .

    FAST FRED
     
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