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Search took 0.00 seconds. Search: Posts Made By: mrm
Forum: Electrical: Batteries, Generators & Solar 14-02-2017, 00:50
Replies: 88
Views: 22,378
Posted By mrm
Re: Hot water with electricity from solar panels

Sure, usually the first circut in a SMPS is a rectifier anyway..



Yes :) but..



I don't think it will be that easy, rather, some data (signal) on an available power budget made available...
Forum: Electrical: Batteries, Generators & Solar 13-02-2017, 00:26
Replies: 88
Views: 22,378
Posted By mrm
Re: Hot water with electricity from solar panels

Actually, there is no need to produce anything new. Switching mode power supplies with variable/adjustable output do exist. Varying output voltage accordingly to surplus energy available seems to be...
Forum: Electrical: Batteries, Generators & Solar 10-02-2017, 09:42
Replies: 88
Views: 22,378
Posted By mrm
Re: Hot water with electricity from solar panels

After more coffee I went even further and did some plots. From your I/V panel characteristics I calculated a number of panel power values for 800W/m2 insolation:

# V P
0 0
5 24.95
10...
Forum: Electrical: Batteries, Generators & Solar 10-02-2017, 08:27
Replies: 88
Views: 22,378
Posted By mrm
Re: Hot water with electricity from solar panels

Yes, I decided that more words are necessary ;)
I still have doubts about your matching analysis. If you take performance graphs of a single panel, I think you still should draw an I/V relationship...
Forum: Electrical: Batteries, Generators & Solar 10-02-2017, 06:57
Replies: 88
Views: 22,378
Posted By mrm
Re: Hot water with electricity from solar panels

Ignoring the thermal coefficient of the heater element, that is correct. However..

This, I think, requires some explanation. The resistance of a heater element will not magically change, it will...
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