>-----Original Message-----
>From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] 
>Sent: 09 May 2006 17:05
>To: Microcontroller discussion list - Public.
>Subject: Re: [ee] Basic physics... Bicycle regenerative braking forces
>
>
>Interestingly, despite all the "warnings", I've NEVER seen air 
>conditioning effect my mileage at all. Now, I do drive bigger 
>cars with bigger engines (my Olds was a 3.8L V6, my current is 
>a 2.5L H4). I actually did a trial once in my Olds. I drove 
>with the AC on, got a mileage, drove with the AC off (and 
>windows closed) and the mileage was basically the same. I 
>don't have definitive results with my current car yet on AC 
>usage, but so far it seems mileage is pretty much the same, 
>whether I use AC or not.


On a large engined american car I guess the extra load of an A/C compressor is relatievly insignificant.  In Europe where smaller engine are the norm, the A/C definately affects fuel economy.  On the very small engined cars e.g. 1000cc Nissan Micra you can literaly feel the car slow when you switch the A/C on.

Regards

Mike

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