Multi Effect Evaporator 2

[CARF]

Multiple Effect Evaporators are applied to concentrate fruit juices and other solutions.

Please enjoy this animation and model to do some basic calculations:

http://home.hccnet.nl/m.dijk/pressure_drop_calculator/calcs/calcs.html

Check the difference between 3 - 2 and 1 effect operation.

Good luck,
CARF

 

[jmw]

A nice site. Had you thought of adding it to the links ?(click the links tab above)

 

[rmw]

Do you have a version feeding in the opposite direction that I could play with????

 

[wildcat2]

CARF,
Neat animation. What software do you use ? My own process model uses Excel. Calculations and macros are easy to program but I am not sure I can achieve the same level of sophistication in animation.
Many years ago I use a 5-effect evaporator system for Ethylene Glycol/ water concentration.

 

[CARF]

Thanks!

I'm using Flash MX from macromedia.

http://www.macromedia.com/

Yes you can do math calculations with Flash, it supports Action-script, a Java-like language.

Making a 5 effect is a matter of inserting extra objects.
(But the animations are a lot of work).

JMV: feeding in opposite direction? What do you mean?
co-current steam/product flows?

Regards,
CARF

 

[rmw]

I was an evaporator design engineer, but it was a third of a century ago. There is feed forward and feed backward. I can't remember which is which, and any one who wants to remind me, I would be grateful.

Carf, if you want to see an evaporator calculating program where the high temperature and the high pressure are at the same (beginning) end going toward the lower end (condenser), go to

http://www.sugartech.co.za,

and fumble around the site until you find the online evaporator sizing program. This program starts with turbine exhaust steam in the 15 psig range, and ends up in deep vacuum, boiling sugar juice down into syrup for further boiling, and crystallization.

The feed in this one is opposite the link given above, and a graphical depiction of the sugar evaporator that I can calculate in sugartech would be neat, hence my question.