Measurement of the dimension changes of carbon artifacts during graphitization in a pilot LWG furnace

Perruchoud, Raymond C.; Fischer, Werner; Letizia, I.

doi:10.1016/j.carbon.2011.08.062

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Graphitization furnaces are basic equipment in the carbon industry, and they can be classified based on the heating method used, such as Acheson furnaces [5], lengthwise furnaces [6], and induction-heating graphitization furnaces (IHGFs) [7]. The Acheson furnace utilizes the Joule heating of resistive materials to indirectly heat and graphitize baked products.…”

Section: Introductionmentioning

confidence: 99%

Design and Numerical Study of Induction-Heating Graphitization Furnace Based on Graphene Coils

Li,

Zhang,

Chu

et al. 2024

Applied Sciences

View full text Add to dashboard Cite

Induction-heating graphitization furnaces are widely used to produce high-purity graphite products due to their high heating rate, high-limit temperatures, safety, cleanliness, and precise control. However, the existing induction-heating systems based on copper coils have limited energy efficiency. This paper proposes a new induction-heating graphitization furnace based on graphene coils. Due to the excellent high-temperature resistance of the macroscopic graphene material, the coil can be placed closer to the graphite heater, which improves the electromagnetic efficiency; the coil itself does not need to pass cooling water, which reduces the heat loss of the furnace and ultimately results in a higher energy efficiency of the induction furnace. In this paper, a numerical model of the induction-heating process is established and verified, the temperature-field and electromagnetic-field distributions of the heating process are analyzed by using the model, and the energy balance calculations are performed for the original furnace and the new furnace. Through a comparison, it was found that the new furnace possesses an electromagnetic efficiency of 84.87% and a thermal efficiency of 20.82%, and it can reduce the energy consumption by 33.34%, compared with the original furnace. In addition, the influence of the coil parameters on the performance of the induction furnace is discussed. By changing the coil conductivity, the induction furnace can achieve an energy efficiency of 17.76%–18.11%. This study provides new ideas for the application of macroscopic graphene materials in high-temperature induction heating.

show abstract

Section: Introductionmentioning

confidence: 99%