Thanks for the recommendation. I’ll keep them in mind.
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Well, statements like yours is some of that Gilbert Fucking Grape argueing I’m talking about
To spdking:
“Doubt anyone would question whether or not you are a Nazi if not for the several inappropriate comments that MIGHT lead ppl to think you have abrasive nationalist opinions”
If someone’s nationalist opinions are abrasive to you, and that MIGHT lead you to believe that stems from someone being a Nazi, you need to sit down and open up a book flame thrower.
As for this site, it is a gem with some rough, and that’s all good, expected and not a problem at all, but when there are those that get a little sand in their crotch with a bit of pressure and start acting all pitchforked up townfolk, you need a lot more than a mirror for reflection <----- There’s Your Substance.
Looking forward to seeing @spdking step up to the challenge of @Siosis , I don’t know what to expect of the outcome, but there are only a few owner operators on this site that would accept such a request, most I feel would Lanphan the fuck out of that conversation.
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I think glass systems are rad
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They are, but I can bang stainless around a little. That I like
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If you make a claim I consider it bullshit until I see proof of pics or a video. Pretty much take everything i hear and believe 10% of it lol
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phase converters are much cheaper than upgrading to 3 phase service and depending on the size needed, is relatively affordable
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@that445guy already schooled me, thank you though bro
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Bro, he just has to unpack it from Vegas lol
Why doesn’t he have a video of it running in Vegas 
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It should only take about half a page of papers worth of thermodynamic calculations to answer the debate. I personally want to see the engineering specs, I dont care much for the sales pitch or a video of someone achieving the claimed numbers once or twice in a highly controlled and bias environment.
Look at it as peer review for publishing. If you really did your homework, really accomplished what you claim, and present a completely transparent case study on your concept, then theres no reason why a board of your peers who are qualified to analyze the material wont grant you a publishing. Its not a perfect system by any means, but if the engineering is sound then transparency shouldn’t be a problem.
The main reason I go to few trade shows, is that I hate sales people. I want the metrics and the facts only, I’m by no means an amateur and will not be sold on fairy tales.
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Agreed with your hate of sales people. I have lost my ability to be kind to sales people that waste my time since I joined this industry
The last convention I went to an “un-named” Flash LC company had one of their sales people try to tell me that HPLC and Flash LC were completely different concepts because one is sample prep and one was analytical, totally negating the fact that they’re both a column chromatography separation instrument using a liquid mobile phase and a solid stationary phase.
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My litmus test for any sales rep is just see how in depth I can go before they start lying. I’d much rather them say they need their engineers or tech people to answer that question for me. However as soon as they start lying from a place of incompetence; the deal is almost always done for me.
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I think thats the opposite, the colder your vapor the harder your condenser works to get cold enough to condense. If the vapor is hot, the condenser doesnt work as hard, because it doeant have to reach a lower temp. I think the chiller works harder to keep a lower temp then it does when keeping a higher temp.
Having ethanol vapor that comes off at 30C will take alot more chilling power to condense then something that came off at 70C. Chillers lose btus as they go colder, thus making them work harder to achieve the same btus u were getting when the whole system was hotter
This seems over engineered to me. I’m not convinced that introducing feed at a specific temperature would make a significant difference with a rotovap.
It’s honestly easier to rotovap at a higher temperature in the basin at a lower vacuum than a lower temperature and higher vacuum because of this very reason. With some tinkering I was able to get ~20l an hour out of a lamphan with an over powered chiller running at 10c
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A roto set at 60C with solution coming in at 20C will be alot slower then something that is coming in at 59C. It only needs 1C to get to the evaporation stage, otherwise taking room temp and heating it up 40C in the bowl, is a waste of time, when u can heat it inline before it hits the roto.
Better yet, preheat the inlet solution to 5C over your bath temp, it should vaporize as soon as it hits the bowl, since the solution wont be under vac u dont have to worry about it boiling in your tubes
My solution to this is drop a SS coil into your heat bath and have your solution go through that or a seperate heating chamber. If you are lazy like me, just wrap your inlet hose 3 or 4 times around your heating pot and it warms the hose lines for u
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i think you need less of a temp delta while maintaining efficiency with a colder vapor at higher vacuum. you could have a vapor at say 50c (higher vacuum) and still have your condenser at 30c versus a vapor at say 70c and a condenser at 30c. it would take less cooling power to keep a condenser at 30c with a vapor temp of 50c versus a vapor temp of 70c
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Thats true but in that situation your drastically changing the delta temp, one is 20C and the other is 40C. The condenser will work less with a lower delta temp. But if we kept the delta temps the same, the condenser would need to be set to 10C(for the colder situation), to make it the same scenario. In that case, i think the 70C situation would have an easier time.
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indeed you are correct
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They are different. Flash uses way lower pressures
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