Make Up Water Requirement using CoolProp Enthalpy Balance - Сообщения
#1 Опубликовано: 19.02.2023 15:03:43
In my plant 20 pumps require flush water which is supplied by a close circuit water flow network. Flush rate & max temperature rise are per vendor specifications. Hot purge & simultaneous volume makeup by fresh water is what maintains the temperature.
I am attaching my solution to the problem. I further need to have multiple plots (on same graph) which corresponds to different temperature rises indicated by equation defining Tc. Please advice
FlushWater_updatedCoolProp2.sm
I am attaching my solution to the problem. I further need to have multiple plots (on same graph) which corresponds to different temperature rises indicated by equation defining Tc. Please advice
FlushWater_updatedCoolProp2.sm
#2 Опубликовано: 20.02.2023 03:48:32
#3 Опубликовано: 20.02.2023 13:58:31
This should have worked ...the data dimensions are correct
#4 Опубликовано: 20.02.2023 14:13:36
#5 Опубликовано: 20.02.2023 19:24:07
I am waiting for a heat exchanger (with temperature loop) which will take x3 months. In the meantime I want to use make up water for temperature control by hot bleeding. Bleeded stream will not be wasted & goes to Cooling Tower makeup ...
Jean, can we use solve() command somehow?
Jean, can we use solve() command somehow?
#6 Опубликовано: 20.02.2023 19:48:43
I am waiting for a heat exchanger (with temperature loop) which will take x3 months. In the meantime I want to use make up water for temperature control by hot bleeding. Bleeded stream will not be wasted
Better wait the heat exchanger c/w control loop.
Detail: most likely the control algorithm will be Lead/Lag.
Your document is red. I will revisit.
In my native SS 6179, if CoolProp is used in another document
it can be called from another document ... a damned bug.
Cheers ... Jean.
#7 Опубликовано: 20.02.2023 20:49:41
Jean, can we use solve() command somehow?
No luck, your document is red with 1 page long error message.
You are trying to plot something, tabulate the data set.
From there, no problem to fit/solve.
Cheers ... Jean.
#8 Опубликовано: 21.02.2023 10:41:28
#9 Опубликовано: 21.02.2023 13:56:08
Mr. Jean thanks for your input but we will be using Plate & Frame heat exchnagers which design is very differnt from tubular exchangers.
Now I have x2 matrices (ranges) changing TB (5 values) which plot a curve at changing TC (3 values) ...so we have x3 curves. Can you change attached file to my requirement
FlushWater_updatedCoolProp3.sm
Now I have x2 matrices (ranges) changing TB (5 values) which plot a curve at changing TC (3 values) ...so we have x3 curves. Can you change attached file to my requirement
FlushWater_updatedCoolProp3.sm
#10 Опубликовано: 21.02.2023 18:33:53
Sorry Collab, your document is red in native SS 6179.
My understanding follows.
Cheers ... Jean.
FlushWater_updatedCoolProp3.sm
My understanding follows.
Cheers ... Jean.
FlushWater_updatedCoolProp3.sm
#11 Опубликовано: 22.02.2023 07:53:15
Jean, because CoolProp addin is not installed (I am also using secant() from nonlinear addin) thats why its throwing error. Check the pdf. Any recommendations from your side
Flush Water.pdf
Flush Water.pdf
#12 Опубликовано: 22.02.2023 09:47:26
Jean, because CoolProp addin is not installed (I am also using secant() from nonlinear addin) thats why its throwing error. Check the pdf. Any recommendations from your side
Nice PDF ... can you make it an Smath document for checking.
CoolProp is an old vintage. Mike helped a lot, as well Alvaro.
I don't use ... rather WASP from Mathcad 11 coded Smath.
By same token, Katmar WASP is freeware for 5 minutes per use.
Once you have your [°C ... kJ/kg] data, you can resume the project.
Most interesting ,,, Cheers ... Jean.
FlushWater_updatedCoolProp3 RESUMED Version.sm
#13 Опубликовано: 22.02.2023 12:24:05
Jean, Thnaks for your plot() function. Here is the .sm file. Being a chemical engineer I cannot let go of CoolProp bcz besides water I have to deal with many gases like N2, air, Cl2, CO2 ...so its vital for me. Additionally, I have seen here that Prode Properties is being used as an Smath addin I will certainly try to make it work bcz I have already integrated it in Excel
FlushWater_final_old.sm
FlushWater_final_old.sm
#14 Опубликовано: 23.02.2023 11:38:03
Jean, Thnaks for your plot() function
For convenience, I have added bilinear interpolation.
Cheers ... Jean
FlushWater_updatedCoolProp3 RESUMED Version.sm
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