Desalination project Issue
Desalination project Issue
(OP)
I am working on desalination project. I made a small prototype for desalinate 0.5 gpm but this need to be constructed for 200 gpm.
In our prototype I bring process water (saline water) to bottom part of an auger (please see attached picture) and I cool down the water in bottom part of auger by a cooling coil feed by a 5 ton chiller to around 40 ͦF . When the temperature drops to 50 ͦF salt start to crystallization and with auger I remove the salt from water and pure water over flow from a half pipe we provide for this purpose. (Please see attached picture).
The issue I am having is this: When salt start to crystallization it attaches to cooling coil copper piping and get hard and harder and each 5 to 10 minute we have to stop the process and remove the salt from cooling coils and start over. I appreciate for any input.
I need to add that, before using this system I tried to run the salty water through shell and tube heat exchanger but salt crystals was plugging the heat exchanger.
In our prototype I bring process water (saline water) to bottom part of an auger (please see attached picture) and I cool down the water in bottom part of auger by a cooling coil feed by a 5 ton chiller to around 40 ͦF . When the temperature drops to 50 ͦF salt start to crystallization and with auger I remove the salt from water and pure water over flow from a half pipe we provide for this purpose. (Please see attached picture).
The issue I am having is this: When salt start to crystallization it attaches to cooling coil copper piping and get hard and harder and each 5 to 10 minute we have to stop the process and remove the salt from cooling coils and start over. I appreciate for any input.
I need to add that, before using this system I tried to run the salty water through shell and tube heat exchanger but salt crystals was plugging the heat exchanger.





RE: Desalination project Issue
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. —Galileo Galilei, Italian Physicist
RE: Desalination project Issue
Doesn't mater for desalination we need to go to that low temperature and it will cause the issue.
RE: Desalination project Issue
David Simpson, PE
MuleShoe Engineering
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual. —Galileo Galilei, Italian Physicist
RE: Desalination project Issue