So how much CO2 do motorboats emit?

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Given that our Great Leader has pronounced that we are all going to burn in the fires of damnation unless we plant a windmill in our garden and ride a bicycle to work, is it time we motorboaters at least gave a thought to how much CO2 our pride and joys emit?
So anybody got a clue how much CO2 the average 40ft flybridge boat sporting 2 x 400hp diesels emits per nautical mile at cruise speed? How about at displacement speed? Are modern electronically controlled marine diesel engines a lot better than clunky old mechanically fuelled ones?
 
I bet its nowhere near as much as Airforce 1 which apparently has flown Obama to Copenhagen overnight and leaves this afternoon to take him to Hawaii for Christmas.

And these are the people that are preaching to us...............................
 
I'm going to hazard a guess at 50 kg per hour at cruising speed, a lot less at displacement speed. So for an average 50 hrs a year, half at cruising speed, half at displacement, maybe 1.5 - 2 tonnes?
 
It'll be a direct multiple of the amount of fuel burnt, but that's waaaaay too technical for me on a Friday afternoon. I reckon VicS is the man to give us the chemical reaction and resultant Moles of CO2 per kg of Diesel fuel?..

Not sure how many carbons there are in a diesel fuel molecule
 
You know the fuel consumption of your boat

use a figure of 0.85 kg per litre as the density to convert litres to kilograms

take the info from Wikipedia at face value, use an average chemical formula of C12H23 and work it out. (you learnt how to do that when you were about 13)

I'll give you a start like they do in modern dumbed down GCSE exams

the equation for the burning of diesel fuel is

4 C12H23 + 71 O2 —› 48 CO2 + 46 H2O​

The RAM of carbon is 12, the RAM of hydrogen is 1, and the RAM of oxygen is 16
 
Nick_H said:
I'm going to hazard a guess at 50 kg per hour at cruising speed, a lot less at displacement speed. So for an average 50 hrs a year, half at cruising speed, half at displacement, maybe 1.5 - 2 tonnes?
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Ah but that's the weight of fuel, not the output of CO2. Unless you're using a huge amount of fuel per hour :eek:
 
Deleted User said:
Given that our Great Leader has pronounced that we are all going to burn in the fires of damnation unless we plant a windmill in our garden and ride a bicycle to work, is it time we motorboaters at least gave a thought to how much CO2 our pride and joys emit?
So anybody got a clue how much CO2 the average 40ft flybridge boat sporting 2 x 400hp diesels emits per nautical mile at cruise speed? How about at displacement speed? Are modern electronically controlled marine diesel engines a lot better than clunky old mechanically fuelled ones?
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I'm with Clarkson's thinking on this, I don't care how much co2 I make, All I know is, I'll be in me box before the oil runs out.

in any case what happened to global warming, they said southern England would have north Africa weather, so what went wrong?:confused:

it's minus 2 already tonight!!!!!!:D
 
thefatlady said:
I make it that the mass of CO2 is 3.16 times the mass of fuel. Correct?
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Bloody Hell, you're in line for a Nobel Prize, you've jut overturned the Laws of Conservation. The boat actually CREATES MASS, all you have to do is stick in 1 kg of diesel to get 3.6kg of **** out!

We need to encourage power boaters to flog 'em up & down the East Coast, soon deal with land erosion and silt drift with all that lot shot overboard.

Another 100 years or so and we'll all be able to walk to Holland!
 
Deleted User said:
Given that our Great Leader has pronounced that we are all going to burn in the fires of damnation unless we plant a windmill in our garden and ride a bicycle to work, is it time we motorboaters at least gave a thought to how much CO2 our pride and joys emit?
So anybody got a clue how much CO2 the average 40ft flybridge boat sporting 2 x 400hp diesels emits per nautical mile at cruise speed? How about at displacement speed? Are modern electronically controlled marine diesel engines a lot better than clunky old mechanically fuelled ones?
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Even the sinking (again of Muckey Farter) would not arrest the so called enviromental imbalance of the ozone layer etc etc.
These tree hugger types are off their heads.
'Heads'
Blimey, don't talk to Me about 'heads' at the Mo!

Today in the Local Paper.
There is a connection between Anglesey and Cardiff by Aeroplane.
It is a well used Route.
Some tree hugger types in the Welsh Assembly
Seem to think the Service should be cessated/cancelled due to Enviromental Issues:eek:

So then
Do We ground all aircraft?

Blimey
If Holyhead to Cardiff is ruining our enviroment.

Better stop me eldest daughter sodding off to the Dominican Republic tommorow for Christmas.

Anyway

She reckons Santa will be there

Do Reindeers emit harm:confused:full ****e?
 
Cliveshep said:
Bloody Hell, you're in line for a Nobel Prize, you've jut overturned the Laws of Conservation. The boat actually CREATES MASS....
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Yes, and we're all going to get crushed by man-made ultra gravity because of it. That's the real truth - this global warming thing is just a smoke-screen.

HTH

Andy
 
Bloody Hell, you're in line for a Nobel Prize, you've jut overturned the Laws of Conservation. The boat actually CREATES MASS, all you have to do is stick in 1 kg of diesel to get 3.6kg of **** out!
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No not quite .

look again at the equation 4 C12H23 + 71 O2 —› 48 CO2 + 46 H2O

From that you can deduce that you stick in 4 moles of diesel fuel AND 71 moles of oxygen and get out 48 moles of carbon dioxide and 46 moles of water which means that, using the relative atomic masses given earlier, 668g of fuel plus 2272 g oxygen go in and 2112g of carbon dioxide plus 828g of water come out.

Total mass going in is 668 + 2272 = 2940g
Total mass coming out is 2112 + 828 = 2940g

Therefore total mass going in = total mass coming out and the law of conservation of mass is obeyed

"Bloody hell", as you say, ... you were taught all this when you were 13 or 14!
 
Deleted User said:
Given that our Great Leader has pronounced that we are all going to burn in the fires of damnation
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Can you provide a reference, I can't find a quote for this anywhere?
unless we plant a windmill in our garden
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same please
and ride a bicycle to work
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I think you are lying, I don't recall any attempt to make me cycle 95 miles to work, or I would have paid attention!

yOUR'e not lYINg again are you mIKe?<----letters cut from newspapers so no one can identify me
 
BrendanS said:
Can you provide a reference, I can't find a quote for this anywhere?
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Here you go. Gordon Brown´s infamous 50 days to save the planet speech:

http://www.number10.gov.uk/Page21033

You will note he claims that if we don't act 35,000 people a year will die in heatwaves in Britain every summer, and

There are now fewer than 50 days to set the course for the next few decades, so as we convene here we carry great responsibilities, and the world is watching.
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if we falter, the Earth will itself be at risk and, for the planet, there is no Plan B
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Hence the "50 days to save the Planet" headlines.

Enjoy reading it. :D
 
does this sound right ?

"sright"

So if we do 150 hours PA at my average of 8.1 litres an hour,that be 150 x 8,1 = 1215 litres.

multiply 1215L x .085 = 10.327 tons of CO2 ? for the boat.

Whereas the car ...233g per kilometer say @ 10k per year = 23.00 tons.

Er maths may not be my string point :)
 
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