Alternatives to diesel fuel
I was speaking to a friend of mine a couple of days ago, its a bit off a side track from boating but the theory is good.I have come across recently a biodiesel truck.The guy who owns the truck used to collect
old oil from chippers etc for free, and use this old oil in large quantities to run his truck.It smells a bit like an old chipper when it is driving.The problem with this type of fuel apart, from the fact it has a higher viscosity than standard diesel is it is especially high in salt, bad for the motor, long term.A more popular product for biodiesel is rape seed which is crushed and used to run the diesel engine.On the forums there was a post recently which spoke about using kerosene as diesel, it will work and I have done it, but bad in its raw state for the motor as it lacks lubricitating properties.I once heard that you can use hydraulic fluid to power a diesel engine, after all we see diesel refeered to as gas oil, and diesel cars as oil burners.A mutual friend of mine and Tims has told us about heavy fuel oil being delivered to the ferrys, in Dublin Port, if you put your hand on the side of the tanker, it is warm.Obviously it flows easier when hot.
The project that I am aware of now is the concept of running a diesel car engine on regular diesel and then changing to svo or standard vegetable oil.The theory is as follows you run the engine on standard diesel and allow the engine to get up to temperature, Fitted in an insulated tank full of svo is a heating element, and piped from this tank to the fuel filter is a flow and return hose with an envelope of hot water around it to keep the svo hot, and allow it to flow easily.The hot hoses are plumbed into the cars system and provide a source of heat to heat the svo.The good thing about using svo is apart from how cheap it is and available, it has good lubriciating properties.When the engine temp is up and the storage tank of hot svo is warm enough, you simply run the car on the oil tank tro a valve system.I am told that it takes about a day to convert the car and that some conversions have done hundreds of thousands of miles on the svo fuel.
Think about this technology being employed in a marine situation,
apart from the benifits to the environment, you would run the engine for practically nothing, i think you can buy vegetable oil for about 60 cents a litre and if you buy non branded stuff, even cheaper than that.Its readily available as a fuel source, exempt from duty, think of how cheap it is if you bought in bulk, and lubricaates as well as burns.
I would have some reseverations about carbon build up, and sooting it might be heavier than normal, I dont know for sure, this of course would not be so good, I am not saying that this is the way to go but certinally food for thought.We are going to run out of petrol and diesel some day!