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Explained: How Does a Deaerator Work?
What is Deaerator? Deaerator is a mechanical equipment that removes dissolved gases mainly dissolved oxygen & other non-condensable gases from boiler feed water. Oxygen causes pitting type corrosion in feed water systems. The process of removing dissolved gases from water also known as mechanical Deaeration. Deaeration process of boiler feed water divided in two parts:
What is Pitting Corrosion?
Oxygen Pitting Corrosion in boiler: The presence of dissolved oxygen in boiler system is responsible for pitting corrosion. Water acts as a cathode of any corrosion cell to depolarize, thereby sustaining the corrosion process. The most familiar form of oxygen attack in boilers and condensate systems is oxygen pitting. Oxygen pitting is a problem for
Ryznar Stability Index(RSI)
Ryznar Stability Index(RSI) was developed by John Ryznar in 1940. It is also called Rznar Index. The reason behind the development of ryznar index is to get more accurate prediction of calcium carbonate scale than Langalier Saturation Index which was developed in 1936. Ryznar Index has its own concept & basis of prediction. However the
WATER ANALYSIS
pH Level of Water | pH of Drinking Water
What is pH level of water? The term pH means “Power of Hydrogen” or “Potential of Hydrogen” in chemistry. But simply pH level of water indicates the concentration of hydrogen ion in water. pH Formula & pH Scale: Based on hydrogen ion concentration pH scale is developed. pH scale ranges from 0 to 14. pH
What is Alkalinity of Water
Alkalinity means acid neutralization capacity of water. When we add acid in water (adding H+ ions) water absorbs H+ ions without showing significant change in pH mainly it is due to carbonate, bicarbonate & hydroxide ion present in water or the mixture of two ions present in water. The possibility of OH– and HCO3– ions
Temporary And Permanent Hardness of Water
Simple defination of hardness is the amount of calcium & magnesium ions present in water. It is divided in two parts carbonate or temporary hardness and non-carbonate or permanent hardness. It is a major source of scale in water systems i.e.boiler water & cooling water systems. Softening is a popular method for removal of hardness
COOLING WATER TREATMENT
Types of Cooling Tower
in this article, I addresses both the important question what is cooling tower & how many types of cooling tower? Are you ready to learn? Let’s start.. Cooling tower is simply a one type of heat exchange equipment where air & water comes in to the direct contact with each other. The main function of
Langelier Saturation Index
What is Langelier Saturation Index? Langelier Saturation Index(LSI) was developed by Scientist Langelier in 1936. The LSI is used to determine the need for calcium carbonate precipitation scale control in water sources containing a TDS concentration of less than 10,000 mg/L LSI is most widely used tool to predict tendency of cooling water. In order
3 Types of Cooling System
The selection of a types of cooling system is basically depends on the quantity & quality of the water source which is available. Each of these systems has it’s own advantages & disadvantages.The Three main types of cooling water system are: Once Through Cooling System Closed Recirculating System Open Recirculating System Let’s discuss one by
