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View Full Version : Hey where are the Car/Physics lovers/likers?


Mr. Robin Parsons
08-31-2005, 10:39 AM
© Mr. Robin Parsons Kingston Ontario Canada MMV

Am I the only one who thinks cars, are a good study of physics, chemistry, electrical engineering, Etc. Etc. (Plus trade Skills) & Human Physiology and psychology??

Really? :p

Mr. Robin Parsons
08-11-2006, 05:34 PM
© Mr. Robin Parsons :cool: Kingston Ontario Canada MMVI

So in following the idea that cars are little Heaters , as in they have radiators and emit quite a bit of heat, isn't that heat Useful? as in the heat/temp that a radiator obtains when the engine is warmed up is enough to boil water as is proven by the pressurized Radiator system that enables the engine to warm beyond the 100 C or 212 F temperature mark where water boils...

So couldn't that be used to alternatively power something like the Alternator as to UN-Tax the Motor a little bit more? thereby Saving Fuel...?

Probably, but Do the Potential fuel savings justify the weight increase? or, is there even a 'need' or does it work out as a "heavier system" such that the potential fuel savings are depleted by that extra factor?

Just a "Thought" .....on Automotive engineering....Kinda stuff - Gods' Grace, (I) still think about.

rongaudier
05-28-2008, 10:55 AM
Okay, yesterday a coworker of mine stated that he knew a GM engineer who said it was possible to get a full-sized SUV with a V8 engine to get 50 mpg.
This kind of reminds me of the old story about the carburetor that was developed which would allow a Cadillac to get 100 mpg. Unfortunately, because of collusion between the automotive and oil industries, this technology was supressed.

I believe it is possible to prove through physics the plausibility of the above scenarios. However I am not an expert in this area and turn to you members of this forum for the answer.

There are a few givens that I'm aware of as follows:

1. Amount of energy as measured in BTUs per gallon of gasoline
2. Amount of force required to accelerate a 5000 pound vehicle to a given speed over a period of time.
3. Amount of force required to overcome aerodynamic drag at a given speed.
4. Total drag load as a function of coeficient and frontal area.
5. Friction/rolling resistance of tires on roadway.

I am fairly certain that even if it were possible to convert the energy in a gallon of gasoline to the force required to overcome all of the loads of the vehicle with 100% efficiency, that the 50 mpg full sized SUV would not be possible. Certainly, the 100 mpg carburetor would be easy to disprove.

Rider01
08-21-2008, 12:32 PM
It is better you take consideration of all this while you manufacture the product.