Have you worked out the value you might need?
Lets say 50V @ 10A, say reactance of 5R at 50Hz; C = 1/(2.pi.50.R) = 600uF
This might do it!
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BICBW
Longer immersion
Feb 28, 2022
Last reply: 3 years ago
45 Replies
0.7 x 240v = 168v rms 230v peak. (The 2 impedances are out of phase.) That gets you down to about a 200uF nonpolarised lytic. If you've got (polarised) mains voltage lytics in your junk box you can lash em together with diodes at zero cost.
As an update Backer are making me a 36" 1.5kW incoloy immersion for about 70 quid delivered which I think is a reasonable compromise.
The temperature distribution within the vessel will be a complicated function of location and time, and will depend on the insulation level too. When you draw off water, things get even more complicated and the outlet temperature will depend on where the water comes from.
Convection currents continue to circulate even when the power is off. In my opinion, you are inventing a problem that is unlikely to have any practical significance. If you were designing (say) a reaction or fermentation vessel where it was important to minimise temperature variation, you would need to include stirrers.
I really don't understand what you are saying about the lower element thermostat. If your elements are in series, then they go on and come off at the same time.
No matter now as it is only of academic interest, I shall fit a 36"
1.5kW elementworth checking out:
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