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yamatan
Mechanical
- Nov 27, 2001
- 3
Hello.
I built a window glass kiln with inside dimension of 12" high x 54" wdie x 88" long. 3 phase 28.5 KW
Materials used were fiber blanket on walls and roof. Firebrick on floor. Heating coils suspended by ceramic rods on roof only.
Problem is when firing small piece of glass it comes out good. But firing large pieces of glass using the same program cycle as the small piece the result is not good.
Question is: How much heat work does a 1/2" thick glass needs per square foot? I may have built the kiln underpowered.
Appreciate it if you can show how to compute for it.
Nelson
I built a window glass kiln with inside dimension of 12" high x 54" wdie x 88" long. 3 phase 28.5 KW
Materials used were fiber blanket on walls and roof. Firebrick on floor. Heating coils suspended by ceramic rods on roof only.
Problem is when firing small piece of glass it comes out good. But firing large pieces of glass using the same program cycle as the small piece the result is not good.
Question is: How much heat work does a 1/2" thick glass needs per square foot? I may have built the kiln underpowered.
Appreciate it if you can show how to compute for it.
Nelson
