Question

Explain priming and foaming

Answer 1

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foaming :

foaming is the formation of thick layer of steam bubbles on the top of the water surface inside the boiler due to :

• higher concentrations of impurities
• presences of vegetable or animal fats in feed water
• increase in level of dissolved ans suspend solids
• increase in boiled water level

Priming :

priming is the condition of boiler in which large amounts of water is carried along with steam in to the steam line. it caused:

• excessive foaming
• insufficient steam place
• because of sudden rush of steam

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