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RSSControlling/Monitoring Chlorination Of Cooling Water
October 12, 2006
•Application Note: Controlling/Monitoring Chlorination Of Cooling Water
Many manufacturing processes require large amounts of water to provide cooling. Most notable of these are electric power generation plants for steam, oil refining, and petro-chemical manufacturing. In any process where water is used as a coolant, it is the water which carries with it the micro-organisms that interfere with the heat exchangers. These microorganisms tend to attach themselves to the wall of the heat exchanger tubing forming a layer that decreases the heat transfer efficiency. Another common occurrence is the formation of tubercles. These formations, besides forming scales on the tube walls, also liberate gases (CO2, H2S) under the scales, corroding the tubing wall.
If the cooling water is sea water, there are other organisms present such as hard shelled mollusks that attach themselves to all of the equipment and many times cause plant shutdowns if caught in rotary equipment.
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•Application Note: Controlling/Monitoring Chlorination Of Cooling Water
SOURCE: Emerson Process Management, Rosemount Analytical
