Sunday, Oct 16, 2011 at 12:08
Marcel,
I have no argument with inductive cooking. It's used in industry and in the
kitchen, and in the right circumstances is excellent. In many cases though, while it may be very effective, it is not very efficient. There have been complaints about the noise made by the fan - why is there a fan? To get rid of the waste heat!
When powering anything from batteries we can't afford to waste energy.
You ask - Could you draw 80 amps from a 200 Ah battery for an hour and use 40% of the battery capacity? In principle yes. In practice though the battery will suffer badly supplying this high current, and efficiency will be poor. (The 200 Ah rating usually refers to discharge at the rate of 5% per hour, not 40%.) After an hour you would have a very hot battery and have used up a fair part of its life span. The only lead/acid batteries that would cope with this without being badly damaged are very expensive types.
As you so rightly say too "A lot to fill again with a 85w panel". To run even the small (850W) inductive cooker will cost thousands of dollars in batteries and solar panels. Or for $20-30 you can buy a little canister gas stove that will do much the same job.
As others have said here, inductive cooking can be great, but cooking really isn't a job for batteries and solar panels.
Cheers
John | J and V
"Not everything that can be counted counts, and not everything that counts can be counted."
- Albert Einstein
Lifetime Member My Profile My Blog Send Message |
FollowupID:
741908