Citrus Growers Forum

bussone · Posted: Fri 24 Jan, 2014 4:01 pm

buddinman wrote:

From what i have been told from the real experts it is best to leave the water run until the air temp get above 32 degreess F. As water freezes it gives off heat.

That's not quite true. When water freezes, the phase change absorbs the heat energy that would otherwise go into changing temperature. You can see local heat fluctuations because the process isn't entirely one-way -- some ice will tend to melt during a freeze process because local environments are never entirely uniform and because it is a two-way reaction.

Sylvain · Posted: Sat 25 Jan, 2014 6:43 am

> When water freezes, the phase change absorbs the heat energy
In fact it releases the energy.

bussone · Posted: Mon 27 Jan, 2014 9:17 pm

Sylvain wrote:

> When water freezes, the phase change absorbs the heat energy
In fact it releases the energy.

I was using it in the sense of "that's where the energy goes", but in terms of sign, you are correct.