Recent content by brunopeniche123
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Predicting flow rates of a pressure driven system
I now just realized one thing... Both THF:Water and MeOH are volatile solvents. Could the evaporation that happened between the measurement and following weighting explain the discrepancies? Evaporation increases when the surface area is bigger, and I used bigger collecting flasks when the flow...- brunopeniche123
- Post #9
- Forum: Mechanical Engineering
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Predicting flow rates of a pressure driven system
Oh, ideed, I never thought of that. The only thing that still "annoys" me is the calculator saying that I have turbulent flows: But what you said indeed makes sense, or better, it is the only thing that makes sense, it explains the discrepancies. So, I can say that this problem is solved :)...- brunopeniche123
- Post #8
- Forum: Mechanical Engineering
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Predicting flow rates of a pressure driven system
Thank you so much for your time and answer! :) Yeah, I think one of my colleagues measured it back in London where I did the research work. The capillaries where purchased from a company...- brunopeniche123
- Post #6
- Forum: Mechanical Engineering
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Predicting flow rates of a pressure driven system
Ok ,I'm back :D! I provide the tables that I have done with the measured flow rates and the predicted ones using the Haggen-Poiseuille equation. The values with the capillary of 0,127mm and 150mm are almost a perfect match. The 0,127mm and 60mm are good too and then I starts getting worse with...- brunopeniche123
- Post #4
- Forum: Mechanical Engineering
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Predicting flow rates of a pressure driven system
Thank you very much for your answer! :) Good question, I really don't know but I wil search if THF:Water (3:2) is Newtonian or non Newtonion. When I arrive home in the afternoon, I write all the data organised! I have more data to using MeOH as a solvent which is a Newtonian fluid and it...- brunopeniche123
- Post #3
- Forum: Mechanical Engineering
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Predicting flow rates of a pressure driven system
Hi! I'm a student of pharmaceutical sciences which means that my physics knowledge isn’t that great ahah, if I say a big mistake in the following text, a thousand "sorrys" ahah: So, I am now writing my master thesis and currently I am finishing writing a part where fluid mechanics are...- brunopeniche123
- Thread
- Flow Pressure System
- Replies: 8
- Forum: Mechanical Engineering