Emissive Carbon Coating for Energy-saving
نویسندگان
چکیده
It has been known that a high-emissivity furnace provides an energy-efficient alternative to a conventional furnace [1,2]. To improve the efficiency of a furnace, ceramic coatings with high emissivity are often applied to the interior of the furnace. The purpose of this paper is to show the amount of electrical energy-saving achieved by emissive carbon coating for a tubular vacuum-furnace. Alumina is important as a refractory material to heat the workload in controlled atmospheric conditions. In this work emissive carbon coating was applied to the interior of the alumina tube. Improvement on the energy consumption to heat up the coated tube was investigated quantitatively by measuring vacuumed cavity temperatures and electric powers consumed by electric furnace.
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