Dear All,
I'm trying to size an agitator for an horizontal tank (to be more specific, for an iso-container I'm using for batch production).
My problem is that in the literature (for instance Coulson & Richardson - vol.6) I am not being able to find anything to solve the question (apparantly...
PELS,
You can have an estimate of the cost of your new pump by one of two ways (for budgetary effects an error of +-30% in the initial estimation is commonly accepted so you won´t have problems):
1) If you know the cost of the pump in 1962 you can, using CEPCI (or other index like that - you...
Mike,
Try to check in:
http://www.pervaporation.org/
It is the greatest worldwide directory of pervaporation technology suppliers and I am pretty sure you'll find your supplier there.
Best luck for your project.
Hello,
Does anyone know any software (preferably freeware) for estimating physical and equilibrium properties of substances/mixtures (for instance, using UNIFAC, NRTL, etc)?
I've found some Excel sheets in Google for estimating the activity coefficients but it isn´t exactly the same (if anyone...
TPP93,
When you talk in NPSH you have always to talk about NPSH required and NPSH available.
- The NPSH required is given by the pump manufacturers and is determined by lowering the NPSH available to a certain pump until the pump head decreases 3%;
- The NPSH available is easily calculated as...
PISA,
I totally disagree with you: if you have a binary mixture of water and MeOH you can effectively separate MeOH from water, much beyond the azeotropic point.
This process is used with ethanol and methanol and it is very effective for both (you can go up to 99.6% in the case of ethanol -...
All of the data you've sent me is being useful.
But I'm still curious about one thing: everything I see in my searches is empirical or semi-empirical.
Does anyone know exactly (sizing equations) what's "behind" a jet pump?
For me, conceptually talking, everything makes sense (Venturi effect)...
Mike,
You can use membrane technology for doing this namely pervaporation and achieve a very good purity at both sides of the membrane.
You can start by reading the attached file ;)
I hope my answer was useful.
Best luck to your work...
Melly,
You can subscribe the magazine for free and receive it monthly at the confort of your house.
You can subscribe it at:
www.che.com
It is a very usefull magazine (personally, I recommend it).
Regards,
formz
Good afternoon,
I am now trying to calculate a steam ejector for vacuum production.
Does anyone have some suggestions about where (how) to start or a spreadsheet already done for an application like this?
Thank you very much in advance.
