Re: What the hell am I doing wrong? water, Cobbled together WSM imitation

Dave wrote:

nailshooter41@xxxxxxx wrote:
On Nov 29, 3:35 pm, Dave <d...@xxxxxxxxxxxxxxxxxxxxxx> wrote:

Not really, the water is there to help avoid temperature >spikes.
When it evaporates, it cools the pit.

The water is in the cooker as a heat sink to help keep the
temperature up.

Yes, the lower the water, the less cooling effect and therefore more
spikes. The water isn't much of a heat sink since the highest temp
it can possibly maintain is 212F. Also, it would seem that the
surface area isn't constant as you stated, but decreases as the water
level decreases.

Don't forget the latent heat of vaporization. That's a bigger heat
absorption mechanism that raising the temperature.




Brian

--
If televison's a babysitter, the Internet is a drunk librarian who
won't shut up.
-- Dorothy Gambrell (http://catandgirl.com)
.

Relevant Pages

  • Re: Do I really need 1 square inch per watt ???
    ... They are a TEPRO TO-220 style thick film heat sink ... > watts that would amount to about a 24" x 24" aluminum plate. ... > price of these TO-220 power resistors, but are they going to be too ... and immerse the plate with resistors into a coffee can full of water. ...
    (sci.electronics.basics)
  • Re: Battery on the ground
    ... fresh water to and from the ocean which prevent it from ever reaching ... battery sitting undisturbed on a large heat sink ... Air is about 24 times less. ...
    (rec.crafts.metalworking)
  • Re: Measuring Power dissipation emperically
    ... Use a large heat sink? ... this is what I'm talking about with water. ... Air has less thermal inertia ... so the measurements will be more unstable. ...
    (sci.electronics.design)
  • Measuring Power dissipation emperically
    ... How does one go about measuring the power dissipation of a device(low ... voltage) emperically? ... Stick it in water? ... Use a large heat sink? ...
    (sci.electronics.design)
  • Re: Limp Body Falling
    ... reboot immediately and check the temperature in the BIOS setup. ... gel between the processor and heat sink, or get a bigger heat sink. ... Fierce Cookie, whose .sig is, character for character, the most ...
    (rec.humor.oracle.d)