Det keramiske fibermoduls vigtigste varmeoverførselsmedium er gas, og porøsiteten af den keramiske fiber når mere end 90 procent. Gassammensætningen i porerne påvirker direkte den keramiske fibers varmeledningsevne. Varmeoverførslen af keramiske fibre er en logaritmisk kurve, og varmeledningsevnen stiger hurtigere, når temperaturen er højere end 700 grader.
The steady-state heat transfer of ceramic fiber lining is mainly based on the heat insulation of the furnace wall or heat insulation. The thermal conductivity of refractory fiber is small, and the heat resistance through such a furnace lining is relatively large, and the heat dissipation loss can be significantly reduced. The non-steady state heat transfer of refractory fiber lining is mainly based on reducing the heat storage of the lining. The intermittent heating furnace frequently raises and lowers the temperature, most of the time in the heating furnace wall. Due to the low heat storage of the ceramic fiber lining, the heating and cooling time of the furnace is greatly shortened, and a large part of the heat is saved.
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