4 replies to this topic

[Chem32]

Dear sir,

 

What is Langelier saturation index and Ryznar stability index? What is the importance of it?

Kindly give some inputs. Thank you

[breizh]

Google will support this type of query ! Basically it will indicate the ability for species to precipitate and generate scale in your system (piping , HX , Cooling tower ) .

 

Ryznar index is similar , both could be used to evaluate the quality of water .

 

http://www.lenntech....x/langelier.htm

 

Good luck

Breizh

Edited by breizh, 08 July 2014 - 11:18 PM.

[Chem32]

Dear Breizh

 

In our cooling water system the chloride concentration is around 700 ppm will it have any corrosion effect in the Heat exchangers? 

[breizh]

HI ,

 700 ppm seems a lot ! 

I would advise you to contact the company in charge of supplying chemicals for your cooling water system and ask them to perform an audit .

Corrosion can develop very quickly .

 

My 2 cents

 

Breizh

[fallah]

sarathkumar,

 

Corrosion effect of 700 ppm chloride depends on the material of the heat exchanger. If it would be from Titanium or Duplex, almost no corrosion effect otherwise corrosion mostly in the form of pitting would be encountered...