Convection is irrelevant. Its obvious that heat transfer is only to a small
portion of the water.
----- Original Message -----
From: "Peter Heckert" <[email protected]>
To: <[email protected]>
Sent: Saturday, August 27, 2011 10:04 AM
Subject: Re: [Vo]:The Krivit Videos Part 3
Am 27.08.2011 15:31, schrieb Joe Catania:
There isn't much mixing with that low a flow. Also cold water tends to
sink to the botton. Also steam tends to rise to the top. Also the
temperature should form a gradient from cold to hot. In short the water
is not the same temperature. But more importantly it won't be evenly
heated.
From my personal experience I cannot agree. Then I must have significantly
uneven heat distribution in my kitchen boiler and I never observed that in
my life.
>
Steam is not formed throughout the water volume but only at the hot metal
surfaces.
Yes, this is the reason why the steam is hotter than the water and these
bubbles going up must cause a lot of turbulency and convection.
