Re: Electric vehicles


"Giuseppe" <pr@xxxxxxxxxx> ha scritto nel messaggio
news:43b260b7$0$1066$4fafbaef@xxxxxxxxxxxxxxxxxxxxxx
>
> "BobG" <bobgardner@xxxxxxx> ha scritto nel messaggio
> news:1135738602.064253.110070@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > Should you include the weight of the batteries and gas tank in the
> > power to weight ratio calcs?
>
> No

No,only electric or IC engine.I explain why.If an 40 kW electric car weight
is e.g. 5 kW/kg lower than an IC one,then we collect 40 kW * 5 kW/kg = 200
kg for some lithium batteries.But lithium batteries have 200 - 300 Wh/kg,so
we have in those 200 kg,40 kWh batteries enough to run the electric vehicles
for hundreds of km.But I'm not sure about electric and Ic motor kW/kg
numbers





.

Relevant Pages

  • Re: OT: Diesel hybrids
    ... The amount of cargo tractor trailers can carry is often limited ... gross vehicle weight. ... Batteries=weight, but perhaps in future batteries the weight will come ... perhaps big truck hybrid technology will become economically feasible. ...
    (alt.autos.toyota)
  • Re: Small, waterproof digital camera for the outdoors?
    ... the battery's weight, ... You stated that the weight of the extra batteries would exceed the weight of the ... the weight of the camera), and I quoted the part of your post I was replying to. ... could carry an Optio and a lot of spare batteries and still weigh less than the ...
    (rec.photo.digital)
  • Re: Looking for a Recommendation...
    ... and a couple of sets of disposable lithium AAs. ... >> of batteries, but you might be able to carry even fewer. ... >> The really small cameras that you prefer have one saving grace. ... Probably I am more sensitive to the weight of a camera ...
    (rec.photo.digital)
  • Re: Do Morons Deserve to be Killed?
    ... So let's pull the entire fuel system out of a normal car to weigh it in... ... You're serious that the weight WITHOUT BATTERIES is the relevant one for this? ... powered bicycles, there are definitely very different regs there. ...
    (uk.rec.driving)
  • Re: Garmin geko 201
    ... I am not sure how much of the batteries is recycled. ... socket, as a result the socket tends to be dislodged, and in the Geko there ... stiffness of cables creates this in a number of equipments. ... But on a slightly shorter trip I would save quite a bit on weight. ...
    (sci.geo.satellite-nav)