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Rod Rod is offline
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Default Electric cars a step nearer mainstream?

Adrian wrote:
Rod gurgled happily, sounding much like they were
saying:

http://www.ft.com/cms/s/0/7f2f081e-2...077b07658.html


But how do you heat an electric car? Not much fun using a totally
unheated behicle in the winter. Even keeping the screens clear becomes a
bit of a problem.


shrug Easy. Instead of a water-to-air matrix, use an electric element.
The actual air distribution and circulation is electric anyway. For
aircon, the compressor is electrically driven, as many power steering
pumps currently are.

Some earlier electric cars had petrol burners to warm the interior. Is
that included in the fuel efficiency claimed?


Just as it isn't in modern common-rail diesels which are so heat
efficient that many of those have an additional diesel-fuelled heater.


As I said to begin with, early electric cars sometimes had a petrol
burner because the designers felt it unwise to use the stored electric
power for heating purposes. Given very low weight, low cost energy
storage perhaps the balance shifts. But most particularly, I would like
to know that the heating energy usage has been fully factored in - for
cold winters - when fuel consumptions are compared. It could make a huge
difference compared to a cool summer.

--
Rod

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