Multi-effect Evaporator
Multi-effect Evaporator
(OP)
Hi Folks.
I am considering to use a multi effect evaporator for the watewater leaving from a biogas reator.
Any one can give an idea, how much energy can be saved by adding one more effect??
I presume for single effect evaporator the energy demands would be 1 watt/kg of water evaporated (simple water evaporation calculation).
Thanks in advance for your advice on the subject.
I am considering to use a multi effect evaporator for the watewater leaving from a biogas reator.
Any one can give an idea, how much energy can be saved by adding one more effect??
I presume for single effect evaporator the energy demands would be 1 watt/kg of water evaporated (simple water evaporation calculation).
Thanks in advance for your advice on the subject.





RE: Multi-effect Evaporator
Take a look at the link below: hope it could help
http:/
RE: Multi-effect Evaporator
It did helped.
It says; 1.1 kg steam/ kg water evaporated for single effect, 0.57 for 2 effect and 0.4 for three effect.(Grodde and Duffield). These numbers does not make sense without specifying the pressure of steam!!!
Since I wanna use LP steam for this purpose, and I am not sure if somehow i can speciify the steam pressure along the steam demand. Should i run set of calculations for different pressure of steam to get the exact steam demand at different pressure.....
RE: Multi-effect Evaporator
It has the ability to choose your number of effects.
rmw