Refractory bricks having high thermal conductivity is desirable, when it is to be used in the _________________?
Correct answer: D. Recuperator
- A. L.D. converter
- B. Blast furnace
- C. Rotary kiln
- D. Recuperator
Explanation
A recuperator transfers heat from hot exhaust gases to incoming air or gas, so high thermal conductivity reduces the resistance to heat flow through its refractory walls. Lower conductivity is usually preferred when the refractory is intended mainly as insulation.
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