50 Ltr Thermopot - Specific heat capacity

[cnelsonplumber]

Is any one elso using a thermopot and beersmith :pray: as I would be interested to know what value you use for SHC

I'm not sure what I based my current setting on TBH so it's probably not too accurate. :wha:

I have found a calculation where I can work it out, but it needs temperature drop and vol measurements. It's minius something in the brewery, I don't imagine any temp. measurements will be all that valid at the moment.

:

 

[BigYin]

I felt obliged to google for an answer..

alas, I feel as though I stepped into an episode of the Big Bang Theory :geek:

http://www.cee.mtu.edu/~reh/courses/ce251/251_notes_dir/node3.html

 

[cnelsonplumber]

I felt obliged to google for an answer..

alas, I feel as though I stepped into an episode of the Big Bang Theory :geek:

http://www.cee.mtu.edu/~reh/courses/ce251/251_notes_dir/node3.html

Blimey :?

There is a thread on Jim's which translates the link into English (I think) but it's with a strong accent :rofl:

 

[BigYin]

Well, if you ever DO find the answer, make sure it's on this thread, because in a few weeks time this thread will probably be the top hit on Google for that search :lol:

 

[Vossy1]

I simply choose pot material and then the weight, it's close enough for me as I nearly always hit strike temps :hmm: ...never really though much past there's no option for it :lol:
Might be worth giving Brad a nudge, a lot of brewers in the U.K use the Nordic pots.

 

[cnelsonplumber]

Mine is set for 0.12 at the moment which is the stainless value but I have to fudge my strike water temp to hit target. Might well drop Brad an email as you suggest.

 

[TRXnMe]

What is the insulation material made of? Any idea of the weights of the stainless steel structure and the insulation?

Assuming it's polystyrene the SHC is 1.3 joules per gramme kelvin. This means it requires 1.3 joules of energy to raise 1 gramme of polystyrene by 1 degree kelvin. A kelvin is exactly the same a a celcius, except it starts at absolute zero, not the freezing point of water :)

It's been a while since I had to use my thermodynamics, so I hope that isn't just more confusing?