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Old 11-20-2012, 01:23 PM   #1
JLo
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In the spirit of a RIMS system, has anybody ever placed an element in a grant? I have a 3L stainless pot I was going to turn into a grant out of the MLT, I've been compacting grain with the pump, I seem to be ball valve challenged. I noticed the grant was just running into the RIMS tube. How about just placing elements in the grant directly?
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Old 11-23-2012, 12:58 AM   #2
Junkster
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Doesn't the wort level typically fluctuate in a grant? As long as the element is completely submerged, it may work. It seems like someone here has done that already - have you searched the threads?

 
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Old 11-23-2012, 10:02 PM   #3
JLo
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For some reason my HBT searching skills were weak the other day.

Perhaps Windows helps me search better....

I did find a lot of discussion on grants, trombones, and other sorts of craziness. I think I'm just going to use my system as is and go a little slower on the re-circulation on the current RIMS setup.

I'll keep the parts around and see if I can't fix the mash compaction issue some other way. (like not being so crazy with the ball valve)
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Old 11-23-2012, 11:49 PM   #4
aquenne
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if your recirculation is slow enough (allowing that element to transfer the heat into the wort) then sure..

there would be no difference between that an a RIMS tube, just that instead of it being sealed, its open to atmospheric pressure

 
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Old 11-24-2012, 12:58 AM   #5
scinerd3000
 
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Are you worried at all about Hot Side Aeration? Grants have generally fallen out of practice due to the oxygen pickup most places although some are still used...In theory it should work although you are going to increase the total heat loss in your system and the element will have to work harder.
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Old 11-24-2012, 01:06 AM   #6
scinerd3000
 
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Quote:
Originally Posted by Junkster View Post
Doesn't the wort level typically fluctuate in a grant?
You can control the level in the grant during recirculation by changing the input and output flows via a ball valve on the inlet or a VFD for the pump. Technically you can also use a ball valve to control flow into the pump but you risk cavitation which could damage the impeller if there is not enough flow. Once it is controlled and at equilibrium, the level should remain fairly constant.
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Old 11-24-2012, 05:40 AM   #7
JLo
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Yeah, you would think that I could figure out how to work a ball valve.....

I'm may not have an equipment problem, I'm going to try and just keep dialing my system in.
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Old 11-24-2012, 06:19 AM   #8
oakbarn
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I have actually thought of using an Induction Heater plate with a Grant. There would be no chance of a burnt Wort and I think you could control the Wort Temp very well. Maybe I will name it OWHERMS i.e. Open Wort HERMS. I personally do not think the is a problem with oxygenation at this stage. seems to me Fly Sparging would be adding much more O2 into the Wort.

 
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Old 05-15-2013, 07:05 PM   #9
JLo
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I'm in the process of building the heated grant as a replacement for my RIMS tube. The RIMS tube worked alright, but I did apply too much heat from time to time and generated some pressure in the system I wasn't happy with. I could have mounted it differently, but I like the idea of using gravity only to drain from the MLT. I kept finding creative ways to stick my mash, so after a dozen brews, I’ve decided to switch over to the heated grant. I’m not sure I’m going to need another acronym. I’ll include my build notes on this thread.
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Old 05-16-2013, 12:49 PM   #10
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Quote:
Originally Posted by scinerd3000 View Post
You can control the level in the grant during recirculation by changing the input and output flows via a ball valve on the inlet or a VFD for the pump. Technically you can also use a ball valve to control flow into the pump but you risk cavitation which could damage the impeller if there is not enough flow. Once it is controlled and at equilibrium, the level should remain fairly constant.
You can control the flow on the output of the pump and therefore on the inlet without lack of supply. You should not try to control the inlet side.

 
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