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TomDD
Joined: 23 Dec 2014 Posts: 35
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Link Posted: Wed May 20, 2015 8:55 pm Post subject: question about striafication |
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not sure if i spelled that right, but i'm talking about the water sitting at different temps when heated with an electric coil (i've run into this before). see, when i first brewed with an electric kettle (my own frankenstein setup sources mostly from highgravity.com), i checked the temp in my HLT and saw a certain temp, but when i transferred it into my cooler mash tun, the temp was about 15 degrees lower than i had checked. this was because it wasn't all the same temp.
i'm currently setting up a Kal setup... and i'm wondering if ths is going to happen again where my temp probe reads on thing but the "whole" temp is lower than it's reading
thoughts? am i missing something painfully obvious? if so, please ridicule me as you wish but let me know
Tom
Last Full Measure Brewery (yes, i have a name before i actually have a working brewery...damn yankees.)
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huaco
Joined: 05 Apr 2012 Posts: 1506 Location: Burleson Texas
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Link Posted: Wed May 20, 2015 9:39 pm Post subject: |
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Nope! Not gonna happen!
That's the beautiful part of this design... Well... one of them anyways!
If you build per Kal's recommendations with two pumps you will use one as a Wort Pump, the other as a Water Pump. The HLT is continually circulated and there is no possible way to get stratification this way, as you are pulling water from the bottom of the kettle (passing by the heating element). The temp sensor is in-line on the out-flowing plumbing of the vessel. You will measure the temp of the Hot Liquor just past the output valve of the HLT. This makes for EXTREMELY stable temperatures and VERY accurate temp measurements.
I do wonder though if on your old system maybe a lot of the heat loss you witnessed was parasitic loss from the Mash Tun. If you weren't pre-heating the MLT you would see a huge loss of heat like that.
Kal, if I missed anything here, by all means expand upon the topic.
Last edited by huaco on Wed May 20, 2015 9:43 pm; edited 1 time in total
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Ben58
Joined: 14 Aug 2011 Posts: 409 Location: Hamilton, Ontario
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Link Posted: Wed May 20, 2015 9:41 pm Post subject: |
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To avoid stratification, our system uses a pump to circulate the water in the HLT Because of the circulation, the temperatures are evened out and the outlet probe will read the proper temperature. Now, whn transferring the water to the mash tun, you need to calculate how much extra heat is needed to compensate for the tun temperature as well as the grain temperature to be able to be at the mash temperature.
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huaco
Joined: 05 Apr 2012 Posts: 1506 Location: Burleson Texas
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Link Posted: Wed May 20, 2015 9:44 pm Post subject: |
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Ben58 wrote: | To avoid stratification, our system uses a pump to circulate the water in the HLT Because of the circulation, the temperatures are evened out and the outlet probe will read the proper temperature. Now, whn transferring the water to the mash tun, you need to calculate how much extra heat is needed to compensate for the tun temperature as well as the grain temperature to be able to be at the mash temperature. |
Beat-cha to the punch Ben! lol
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TomDD
Joined: 23 Dec 2014 Posts: 35
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Link Posted: Wed May 20, 2015 9:49 pm Post subject: |
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hi
i guess i should have read the brew day doc a little more closely.
pretty plain...ugh. commence with the brutalization...
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Ben58
Joined: 14 Aug 2011 Posts: 409 Location: Hamilton, Ontario
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Link Posted: Thu May 21, 2015 9:37 pm Post subject: |
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[quote="huaco"
Beat-cha to the punch Ben! lol
[/quote]
Ah ya bast....
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