Re: The Electric Car

JosephKK wrote:

Eeyore rabbitsfriendsandrelations@xxxxxxxxxxx posted to
sci.electronics.design:



BradGuth wrote:


Eeyore wrote:

BradGuth wrote:

Eeyore wrote:

MooseFET wrote:

The main problem with the Hummer on the highway is that it
is less streamlined than a brick.

It has a drag area of about 2.5 sq metres. Its 3 1/2 tons
results in a fair bit of rolling resistance too.

I just calculated the power required to propel it @ 70 mph
(the UK national speed limit) as 52kW. That means that 100
miles (at 70 mph) would require 52 x 3600 x 100/70 kJ = 267
MJ

Regular gasoline (per Wikipedia) contains 34.8MJ/litre. A US
gallon therefore contains 132 MJ.

So it would only need a 200% efficient engine *** LOL *** to
propel this Hummer at 100 mpg (at 70 mph).

Brad Guth doesn't seem to understand the problems about ICE
efficiency.

Thanks for those honest enough numbers. However, add quality
silicon enhanced tires,

Bollocks. No such thing. You're just making stuff up. Besides,
the rolling resistance is a small proportion of the total drag.
You could of course fit SOLID wheels but the ride would be a bit
harsh !


give that brick of a Hummer a high energy density
battery/fuel-cell, feed it and that little one-cycle efficient
engine with h2o2 plus whatever fossil derived fuel (such as
common diesel road fuel) for accommodating the little ICE, and
say it again, KT.

That will not affect the energy required. So your 100 mpg claim
is quite simply barking mad.

Once again, Sir ExxonMobil, up yours.

Your lack of answer/meaningful response is noted. Quite simply,
science tells us the truth about your daft suggestions.

Your ridiculous 'ideas' are quite frankly no more use than PIGSWILL.

Graham


Quite a bit less actually.


Yeah, don't insult good, quality pigswill that helps raise good bacon by comparing it with Barkin' Braddies nonsense!

Charlie
.

Relevant Pages

  • Re: The Electric Car
    ... the rolling resistance is a small proportion of the total drag. ... feed it and that little one-cycle efficient ... engine with h2o2 plus whatever fossil derived fuel (such as ... So your 100 mpg claim ...
    (sci.electronics.design)
  • Re: The Electric Car
    ... Bollocks. ... the rolling resistance is a small ... with h2o2 plus whatever fossil derived fuel (such as common diesel ...
    (sci.electronics.design)