So, does fog lower fuel efficiency?

[0roo0roo]

..

 

[UNCjigga]

what if wet air compresses better?

 

[jagec]

I'd think the additional drag it creates would have a greater effect than the (very slightly) lower concentration of oxygen in foggy air.

In this case, water would do exactly the same thing for combustion that nitrogen does: Just act as an inert gas and absorb heat.

 

[Random Variable]

Dumb answer: increased air resistance?

 

[Goosemaster]

Originally posted by: Vespasian
Dumb answer: increased air resistance?

prolly. that is going to be a LOT of water

 

[OS]

humidity hurts engine power output

 

[element]

Originally posted by: OS
humidity hurts engine power output

Then why did they use water injection on the old war planes like the P-51 Mustang to boost power?

 

[grrl]

Originally posted by: element

Originally posted by: OS
humidity hurts engine power output

Then why did they use water injection on the old war planes like the P-51 Mustang to boost power?

My understanding is the water helped keep the cylinders from overheating. The water was injected in conjunction with menthanol, if I'm not mistaken.

Check out this link on water injection.

Edit for link.

 

[Fritzo]

Yes, because you have to drive with with window rolled down and your head out the window going "BBBBEEEEEE-YYYYOOOOOOOOO!!!", and that increased your wind resistance.






Hmmm....that joke might be too obscure. I give it a Dennis Miller factor of 7.

 

[flamingelephant]

menthanol? gotta love that nice minty-smelling exhaust!

 

[Tiamat]

Originally posted by: flamingelephant
menthanol? gotta love that nice minty-smelling exhaust!

:laugh:

 

[JulesMaximus]

I seriously doubt it.

 

[DrPizza]

It probably lowers fuel efficiency no more than those after market gadgets raise fuel efficiency.

 

[SagaLore]

Originally posted by: jagec
I'd think the additional drag it creates would have a greater effect than the (very slightly) lower concentration of oxygen in foggy air.

Actually the more water content in the air, the less drag there is.

Plus a chamber of hot water vapor will have higher pressure than a chamber of hot nitrogen. If that weren't true, clouds would never form in our nitrogen rich atmosphere.