Fuel (gas or oil) fired glass metling tanks Flashcards

1
Q

How is the melt pool heated?

A

~ mostly radiation from crown (inside ceiling) which was convection heated by combustion products

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2
Q

Why are the melting tanks shallow?

A

~ limited penetration depth of the downward radiation flux

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3
Q

What are regenerators?

A

~ heat transfer to brick checkerwork that later preheats incoming air

~ reduces overall energy consumption by 50-70%

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4
Q

How do you maximize energy?

A

~ max air preheat and minimum excess air

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5
Q

Why do we replace combustion air with oxygen?

A

~reduces the volume of exhaust gases by 70%, reducing the energy lost by hot combustion gas

~ eliminates nitrogen witness gas, preventing NOx formations

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