b3ta.com talk
You are not logged in. Login or Signup
Home » Talk » Message 6218422 (Thread)

I didn't realise I had changed my position in the slightest.
15% will always be relative to the size of the engine; Im fairly sure a Bugatti Veyron would hardly notice the effect of aircon on its fuel economy, what with it being a massively pointless thirsty beast anyway.

Still, if you'd like to be ridiculously argumentative rather than rational, carry on by all means.
(I helped save b3ta! Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:20, archived)

"I've yet to own a car with AC - it sucks 15% of the engine power, massively increases the fuel usage"

You are the one making outrageous exaggerated claims. Go back to your backward cars in your backward country.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:23, archived)
Neither of those are outrageous or exaggerated
The average horsepower of a European car still remains less than 100hp. In that situation, with the other figures I've quoted, 15% is a fair figure.
(I helped save b3ta! Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:25, archived)
You're making it all up.

(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:26, archived)
oh right
in that case, close your eyes, breathe deep, count to 7, then punch yourself in the face.
(I helped save b3ta! Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:27, archived)
You've failed to quote any sources. You might as well be making it all up.
But posting sources NOW means you fail even more, for being an idiot.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:31, archived)
I wonder if you could do it with heatpipes instead.

(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:27, archived)
That'd only work in flowing traffic
not the immense traffic jams you get in Sinai Peninsula (a BIG target market for cars with Air-con)
(I helped save b3ta! Grrrmachine the indifference engine, Thu 11 Jun 2009, 19:30, archived)
No, not to any effective degree.
They'll carry excessive heat away, but they won't chill anything.

Some manufacturers use peltier coolers. Grossly inefficient though.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:30, archived)
ack
no, never use peltier coolers for A/C.

Might not be much use in the Southern US and the like, but for your average UK summer ambient temperature is bearable enough. The problem is all the windows a car has makes it into a mini greenhouse.
(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:32, archived)
Bearable by who's standards?
I will decide what temperature I want the inside of my car at, thank you. Especially when it's been sat in the sun, and the inside temperature is in excess of 40C, with a black dashboard blasting it at my face.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:35, archived)
I'm not telling you what to do,
I'm only proposing a compromise solution that will cool better than no cooling, but without draining engine power or significantly increasing the weight of the vehicle.
It would also work while your car was sat with the engine off.
(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:36, archived)
Oh that was the other thing - 60KG for electric windows? I think not.
Maybe in some shitheap old commy car, just maybe.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:38, archived)
it does seem a bit much,
that's what I weigh! Still unnecessary, though. I'm perfectly capable of using a handle.

How about your car's windows make from infra-red transmitting glass? It wouldn't trap the heat so much, then. And use a heat-conductive roof lining.
(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:42, archived)
I'd rather press a button once when driving, than have to wind a handle. It's the same as using a mobile.
Also, your latest suggestion would make the car an icebox in winter.

The solution is, air con. As proven by the millions of cars with it installed.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:44, archived)
it's a crap solution because it drains engine power and increases your mpg,
especially in this day and age when mpg is more important than ever. The popularity of the idea isn't proof of how good it is. It's a luxury feature, and luxuries sell, because people like luxuries.
(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:47, archived)
Heatpipes don't chill.
You could only hope to get to ambient, and even then, very slowly. They'd be even less effective with the car stationary.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:40, archived)
yes, that's the idea,
ambient temperature is better than greenhouse temperature.
(I helped save b3ta! Moon Girl Technologies horrendous beanbag, Thu 11 Jun 2009, 19:42, archived)
Not if you want it less than ambient.
If it's 30C, I want it down to 20C, like most normal human beings living in temperate climates. I would argue that people in HOTTER climates could do without it, as they'd be used to the heat.
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:46, archived)
Food time!
#EOF
(I helped save b3ta! Dave Trouser ; the people's choice - 75% agree, Thu 11 Jun 2009, 19:46, archived)