Texican
Если не я, то кто?
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« Reply #20 on: April 23, 2009, 01:19:PM » |
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I'm really dense... I just got that!  Now, if you could only figure out how to null the effect of foam on a microwave level indicator in a vessel, that's being used to control the amount of liquid being transferred from said vessel to several remote containers, so that the remote containers receive the appropriate amounts, without overfilling. This has to be done on a budget, without adding any more valving, and without using flow indicators. Pumping is done from the source, and it's a closed-loop, sanitary system. |
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Zedta
Red Fish
Personality type: Old Fart (More descriptive than psychobable)
Posts: 1,094
Wha'd ya expect, from a cigar smokin' gorilla?
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« Reply #21 on: April 25, 2009, 08:25:AM » |
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liquid being transferred from said vessel to several remote containers, Is the viscosity of the fluid critical? Could changing the surface tension of the foam bubbles with an alcohol work? |
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One should have an open mind...open enough that things get in, but not so open that everything falls out.
In the world it is called Tolerance, but in hell it is called Despair, the sin that believes in nothing, cares for nothing, seeks to know nothing, interferes with nothing, enjoys nothing, hates nothing, finds purpose in nothing, lives for nothing, and remains alive because there is nothing for which it will die.
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Texican
Если не я, то кто?
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Personality type: studený
Posts: 9,505
Déu, força, i honor
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« Reply #22 on: April 27, 2009, 04:00:PM » |
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Is the viscosity of the fluid critical? Could changing the surface tension of the foam bubbles with an alcohol work?
Viscosity is usually about 1cP @ 25 C. We'd rather not introduce an alcohol into the mix, because then the contents of an 'alcohol-free' formula would have to be re-labeled, as per FDA regulations. Our ( temporary ) solution has been to withhold agitation of the mixture, until the orifices of the mixing tube are at least 6 inches below ( 85 gal. ) the liquid's surface. Normally, the mixing vessel would be pre-filled with approx. 100 gal. of water, then the first chemical would be added. As the second fill sequence/ line flush was started, the mixture would be recirculated through another line going through a diffusing tube, to ensure that the solution was thoroughly mixed. This recirculation continued for the duration of the chemical addition/ water fill sequences, and remained active, until an operator terminated the operation, so that the mixture would then be pumped to the remote containers. This had never been a issue, because the mixing was done with mechanical agitators, not recirculating pumps. The pumps are more efficient, but they aerate the solution quite a bit, causing the foam. We've tested delaying the recirculation, and it looks promising, so we'll do that, for now. I do appreciate your help, though! |
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Zedta
Red Fish
Personality type: Old Fart (More descriptive than psychobable)
Posts: 1,094
Wha'd ya expect, from a cigar smokin' gorilla?
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« Reply #23 on: April 28, 2009, 08:04:AM » |
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Sometimes the most simple of fixes work nicely: Why not suck the fluid through the system, rather than pump it? If your system were air-tight and the pump were to create a vacuum at the end, it would flow without as much turbulance and therefore, less foam? Just a thought and I am speculating from afar and without any valuable details.  |
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One should have an open mind...open enough that things get in, but not so open that everything falls out.
In the world it is called Tolerance, but in hell it is called Despair, the sin that believes in nothing, cares for nothing, seeks to know nothing, interferes with nothing, enjoys nothing, hates nothing, finds purpose in nothing, lives for nothing, and remains alive because there is nothing for which it will die.
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Texican
Если не я, то кто?
Member
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Location: here. there. everywhere!
Personality type: studený
Posts: 9,505
Déu, força, i honor
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« Reply #24 on: April 28, 2009, 08:49:AM » |
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Unfortunately, we need the turbulence to mix the different chemicals and water, thoroughly. As for a vacuum, it is an air-tight system, but the lines run overhead, and there is quite a bit of head pressure that would have to be overcome, in order to move the liquid.
I agree- sometimes the simple solutions work best.
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actiofidei
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« Reply #25 on: April 28, 2009, 10:06:AM » |
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I'm not a bit surprised this went right over your heads. Oh, and I'm indeed just sharing. Of course, it ain't surprising that something involving a cross product makes someone on here go 'what the?'. A bunch of 'know-it-alls' who try to philosophically discredit any sort of scientific inquiry. A bunch of mini-Kants in this regard.
I have degrees and physics, but had the same question as Iuvenalis. Seemed reasonable... |
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"Hell is full of good wishes or desires." - St. Bernard of Clairvaux
"Do not be troubled by Bernard's saying that 'Hell is full of good wishes or desires.'" - St. Francis de Sales
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devotedknuckles
the causes go, true rebels remain
Member
Personality type: incorrigible buffalo
Posts: 20,680
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« Reply #26 on: May 27, 2009, 11:57:AM » |
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hotspur the very fact u need to prove to us how brilliant u r, betrays how low ur self of steam really is.
but since u need to hear it, and charity is what i'm workin on.
ur brilliant dude!
really
real real brilliant.
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This is the journey
from which, for me there shall be no return
wholly drenched
is the pine tree of tears
-Yoshida Shoin
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devotedknuckles
the causes go, true rebels remain
Member
Personality type: incorrigible buffalo
Posts: 20,680
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« Reply #27 on: May 27, 2009, 12:02:PM » |
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Also since u didn't even write the thing u posted the most i can say is
ur brilliant at posting long winded section of your physics text man.
ur real brilliant.
really
real real real
just smart.
hope ur pistol matches your brain.
but because your smart, and brilliant to match
whats a triple OOO loop? don't ask google because your brains arn't made up of noodles so you want me to believe
sip sip
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This is the journey
from which, for me there shall be no return
wholly drenched
is the pine tree of tears
-Yoshida Shoin
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Stephanos
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Posts: 625
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« Reply #28 on: May 27, 2009, 01:51:PM » |
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Wow, some people are actually getting angry over cross products and integration.  |
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geogeer
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Posts: 671
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« Reply #29 on: May 27, 2009, 02:04:PM » |
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Wow, some people are actually getting angry over cross products and integration. Heck yah, I'm angry and I'm gonna let the world know! In my day we approximated with slide-rules and it was good enough. But no, kids these day need the exact answer from derived from first principles. And they wouldn't know a proper integration if it hit them right between the eyes! Besides, everyone know that angular momentum is the work of the devil. Without angular momentum, Galileo's theory is complete hogwash - so angular momentum is a craft of the devil to distract people from the truth that the whole world rests on the backs of an endless stack of turtles... Besides we know that turtles, while cute, carry salmonella which can result in sickness and death. Where was I... Yeah, math makes me angry.  |
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