Timeline for Does stirring water in a bucket in whirlpool keeps it warm?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Dec 1, 2011 at 6:12 | comment | added | Vineet Menon | @Georg: then now we have to define what common mean! anyways for mw the discussion was started due to "nonsense".. | |
| Nov 30, 2011 at 12:43 | comment | added | Georg | @Vineet, You like to jump with Your thoughts. Remember this "discussion" started with me objecting that pumping is a "common" method of heating? And those Candus, You seem to misunderstand the reason for circulation pumps. This is the end of this debate as far as I am concerned. | |
| Nov 30, 2011 at 12:36 | comment | added | Vineet Menon | @Georg : CANDU reactors, heard of it probably...This technique is used for preheating the coolant... | |
| Nov 30, 2011 at 12:30 | comment | added | TheTechGuy | @anna In my case the bucket was plastic, and insulator for heat transfer. | |
| Nov 30, 2011 at 12:01 | comment | added | Georg | Ah, "PESWIKI" (Pure energy systems!), mostly "overunity" nonsense. And that cavitation heating might be appropriate for its "scale free" properties in some seldom cases. Then You correlate Your maybe occasional "observation" of windy weather to warm sea to cavitation again, horrible. This is Arschbacken and Kuchenbacken. | |
| Nov 30, 2011 at 11:51 | comment | added | anna v | @Georg peswiki.com/index.php/Directory:Cavitation_Heaters , google cavitation heaters. I have observed that when it is windy/wavey the sea water is warmer. Was not sure of why, thought it was a mixing effect and an illusion because mixing brought top layers which warm in the sun, to 1 meter down or so, so the water feels warmer in general, but this cavitation effect seems reasonable also as part of an explanation. It is kinetic energy turned into heat. | |
| Nov 30, 2011 at 11:13 | comment | added | Georg | ""I have witnessed it myself, "" Where? | |
| Nov 30, 2011 at 9:28 | comment | added | Vineet Menon | I have witnessed it myself, and don't annotate a thing as nonsense if you haven't come across it.... | |
| Nov 30, 2011 at 9:24 | comment | added | Georg | Vineet, read about the temperature increase in a practical eyperiment for demonstration of mech. heat eqiuvalence! And "common kind of heating" is such a nonsense, incredible! | |
| Nov 30, 2011 at 5:11 | comment | added | Vineet Menon | that depends on the rate of stirring. As I said, the closed loop pumping for heating water, the pumps are rated 8MW! So, whatever the vessel(pipes) is made of, it gets heated pretty fast! The thing which matter is the equilibrium for heat transfer. If stirring is slower than the heat which is escaping thru metal bucket, you might get a cooler water. | |
| Nov 30, 2011 at 5:00 | comment | added | anna v | Should this not be a non heat conducting bucket? In a cold room stirring the hot water in a metal bucket should cool it faster, in my opinion. | |
| Nov 30, 2011 at 4:53 | history | answered | Vineet Menon | CC BY-SA 3.0 |