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I was going through some of my old cruise literature that I had from our Grand Princess cruise and saw this fact;
Taking in all power factors of the ship, such as, engines, generators, water conversion, heating, laundry, cooking, AC, and many other fuel based operations. It averages out for total fuel used on a cruise the ship travels;
"6 INCHES" PER GALLON OF FUEL……
And I thought my wife’s SUV was a gas guzzler. How would you like to pay that bill???
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Sea Ya,
Jason If a grin is transmittable, and laughing is contagious, here’s hoping for an epidemic!
Think I'll file it way back in my memory as one of those things I don't want to think about too much. Otherwise the guilt will set in. I guess as long as they are going to be off to sea anyway, I might as well go along.
Doesn't make sense. That comes to 12,152 gallons per nautical mile. Or, for a short trip of 1,000 nmi 12,152,000 gallons. That is a lot of fuel to store. I know they can refuel at every port but I think 1,000 nmi would have to be a minimum distance they could cover. Interesting number though and I will try to do further research.
Didn't see compressed gas (further research) but as to diesel engines....
Ship holds 2649 tons of fuel. There are 7.46 barrels of diesel fuel per ton. Each barrel equals 42 gallons. Therefore, total capacity is 829,985 gallons. If we used the 6" per gallon figure, that would equal a cruising range of 68.3 nmi.
I will need to research further the types of compressed gases on board.
marc
PS This is sure an interesting way to spend ones holiday!!
Marc,
What I found is 4.33lbs per gallon of bunker fuel. 2650 x 2000=5,300,000 div. by 4.33= 1224018 x 5 = 6,120,092 gallons.
And I have not been able to break down the other gas's or find anything about what they are.
another posting says for a smaller ship, it uses 70 gallons per mile for propulsion only
Post Edited (11-11-02 14:53)
__________________
Sea Ya,
Jason If a grin is transmittable, and laughing is contagious, here’s hoping for an epidemic!
The primary stage of the Saturn V rocket consumes one metric ton of fuel a second. At that rate a ship's tank would be exhausted in about 45 minutes. Can't say whether it would achieve orbital velocity, but I bet it would be an impressive sight skipping over the waves.
No mention of bunker oil. Also, haven't found any reference to the 5:1 conversion. Maybe we need an expert to help us out. Anyone have something to add?
Tricky this...... ships vary in consuption as much as women.
Cutting through all the calculations and getting down to my level - A modern mega liner only burns around 100 tonnes of fuel per day - whereas an old 40,000 GRT turbine vessel would munch its way through around 290 tonnes per 24 hours.
MFO did go out and was replaced by the various forms and weights of MDO (much better for motor ships) However, now that some ships have their own refinery built into the ship they are returning to the cheaper MDO and cracking it on board.
The various Gas compounds are used for many things in the aux category and even in some new ships as part of main propulsion (sort of hedging your bets).
So ships do burn less fuel but have given up some speed at the same time.
This is all from memory, so will be a bit out of date, infact most things to do with the little grey cells seems to be a little out of date - S'life
Thanks. If you think of a cruise ship transiting as much as 500 miles in a day, consuming your guess of 100 tonnes a day, we get a better fuel consumption rate than Jason started with.
Fab,
That sounds a little more feasible, when you consider refining aboard ship. Without knowing the refining ratio we can't go any further. Thanks!!! Now I’ll have to find some other tidbit to keep me amused for awhile.
__________________
Sea Ya,
Jason If a grin is transmittable, and laughing is contagious, here’s hoping for an epidemic!
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Mega-Ship fuel fact...WOW!!!!
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