DIY Electric Car Forums banner
1 - 3 of 3 Posts

·
Administrator
Joined
·
6,542 Posts
Run the numbers!

The original engine would have required - at least 100 kw of cooling and the delta T would have been about 70C

Your new layout will need less than 5 kw - but the delta T will go down to about 35C

So you will need about 1/10th of the radiator

In practice that would only be at full power - and only for a few seconds so you will not need as much as that
 

·
Administrator
Joined
·
6,542 Posts
Hi Alec
Just for some real world experience I have a water cooled controller
I'm running 1200 amps and 340volts
I use a small solar hot water pump to circulate the water through my controller and through my Chevy Volt battery

I have no radiators in the circuit - here (Southland NZ) I have zero need for any cooling and I keep thinking about adding heating to get my batteries up to their optimum (for power) temperature

In the hottest days in the summer (while competing) I have seen controller temperatures of 25C - the optimum battery temperature is 30C - but the highest I have seen was 22C
 
1 - 3 of 3 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top