It doesn't help you solve the problem as to why the pressure spike is happening, but 4-port pressure relief valves (see sketch) are commonly used in food & beverage to protect around PD pumps without introducing that dead-leg/fouling/contamination risk. They basically act like 2 separate pipes...
The manufacturer should be able to provide a recommended cleaning flow rate for the exchanger, while a company that supplies cleaning chemicals should be able to suggest the chemicals to use (depending on the type of fouling, and gasket/exchanger material).
bimr,
I have been looking for a table like that B-16 in your attachment for a long time. Can you confirm this is from "Pumping Station Design" by Garr M. Jones?
Thanks!
I work in food & beverage for a process design and engineering consulting company, and the way that we typically do it is:
Current drawings from client, verify as needed
If there is substantial removal work then the lines, equipment, and instruments to be removed are highlighted (usually...
If there is any production equipment in the space, then the OEM might have a recommended range. You can check out the "Sterling Humidity Chart" for humidity ranges to control various microorganisms. ASHRAE also makes some suggestions for comfortable working conditions. As far as I know, there...
Used one of the methods from http://www.tek-tips.com/viewthread.cfm?qid=1439840
It's not too pretty, and it will require some modifications to accommodate additional data. The blue columns are my helper columns, and the green column shows the result.
Based on a quick google search, it seems...
If you aren't opposed to using macros, then yes. In this example I am making the values in Sheet1 and Sheet2 cell B1 be the same.
In the VBA window (Alt+F11) go to the code for Sheet1
Private Sub Worksheet_Change(ByVal Target As Excel.Range)
If Target.Address = "$B$1" Then...
same conditions means that if your experiment varies Temperature and you choose 0, 5, 10, 15 degrees then run your simulation at those same temperatures (in your case it looks like you are using strain). you have already run the experiments, so just plug the experimental strains into the...
what sort of comparison are you looking for?
your file has experimental and simulation data graphed together, which compares them.
to come up with an idea of how accurately your simulation predicts experimental results, you could try plotting simulation vs experiment when using the same...
Thanks everybody for letting me know I'm not alone!
I think that it might have something to do with how the various cells are formatted. When I formatted them all as numbers (before, some were currency, percents, general, number) it did not increment any of them when I dragged the entire column...
I have two rows of cells (in COL A, rows 1 and 2) that I want to select and use the lower right drag to fill in the next several columns.
When I select both cells (A1:A2) and drag, it looks like this:
COL
ROW A B C D
1 50.0% 150.0% 250.0% 350.0%
2...
All-
I am trying to model a CIP process and have managed to find all sorts of wonderful information except how long the various steps should be.
For instance, I found CIP fluid flow rates based on tank size - 2-2.5 gpm per ft circumference.
Anyone know where I can find similar guidelines for...
