Thread: EV general discussion

If you look back over the posts you will see it is a mix of car stuff (eg Nissan) and none car general A/C.

My nissan leaf fully charged last winter with range of 190km on dial,temperature outside was minus 4 celcius,turn on heater air con range states 162 km..,varies with outside tempature of course improving with warmer temps of course and of course fakes more kw and time to reach 100% at present with 16 c it charges to 204 km in theory..

Originally Posted by 101RRS

Well actually many non heat pump reverse cycle air conditioners do use electric heaters to gain full efficiency. How do I know - well my house had them.

In cold climates many reverse cycle air conditioning systems were not able to pull enough heat out of the outside air to heat the house in temps below about 2c. So they installed a big electric heating element in the ducting that came on when the A/C could not cope. So you had basically a big fan heater.

Garry

Small to medium reverse cycle AC units for normal comfort cooling don't have heaters anymore.

Heaters are still used in commercial systems,where reverse cycle is not used,or in systems that use chilled water reticulation.These have different zones with re heats,variable air volume boxes,etc,etc,etc.

Even multi headed systems have no heaters,although they can have one indoor operating on heating,with another on cooling.
The Japs have done an excellent job with the engineering and design of such systems.

Anyway,does this have anything to do with EV's,um,probably not

Originally Posted by Old Farang

Yes, all well and good. But you are talking about Co2. While Co2 is used as a refrigerant it is not the type of gas you want in a car.

To see what Co2 does just take a Co2 fire extinguisher and let some loose.

Great for chilling a beer issue? It wasn't me

Heat pump v not

Originally Posted by scarry

This is interesting,won't help manufacturers such as LR that produce many heavy vehicles.

So get in and get your vehicle before these rules and taxes start to arrive here.

Looking at actual $,a vehicle that weighs 1000KG over the limit is going to cost an extra $16500 to purchase.

They would be better off teaching people to keep tyre pressures where they should be and to drive sensibly which would also not only reduce fuel,but also reduce brake pad dust and rubber particles from tyres,which are a huge issue as well.

But that will never happen,they just need an excuse for another tax,which is all it is.

Pretty sure WA taxes by weight

Originally Posted by DiscoMick

Can't the heater work with the air-con off?

What heater? From the cooling pack for the batteries?
Needs pump and fan running.

I think that the following is still under development, but may answer some questions:

More Efficient Heating & Cooling Technology Extends Electric Car Range

https://cleantechnica.com/2018/10/08/more-efficient-heating-cooling-technology-extends-electric-car-range/#:~:text=Many%20electric%20cars%20rely%20on,electr ic%20baseboard%20heat%20in%20buildings.&text=Other %20electric%20cars%20use%20heat,motor%20turning%20 a%20rotary%20compressor.

Innovative Climate-Control System to Extend Range of Electric Vehicles and Improve Comfort


CORDIS | European Commission

GMC's 1000HP Hummer EV is an 'all-electric supertruck'

https://au.news.yahoo.com/gmc-hummer-ev-reveal-001354369.html

Behold the 2021 Hummer EV Edition 1, what GMC is billing as “the world’s first all-electric supertruck.” The four-door crew cab boasts AWD, 1,000 HP, and 11,500 ft/lb of torque generated by three motors run from the vehicle’s Ultium battery pack. That’s enough oomph to reportedly propel it from standing to 60 miles per hour in just 3 seconds, the same timing as the Rivian R1, and an announced range of 350 miles.