Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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A Study on the Thermal and Electrical Characteristics with Manufacture of the Heating Element by Using Carbon with Bar Type

봉상 카본 발열체의 제조와 열 및 전기적 특성에 관한 연구

  • 배강열 (경상대학교 기계항공공학부) ;
  • 이광성 (경상대학교 정밀기계공학과 대학) ;
  • 정한식 (경상대학교 기계항공공학) ;
  • 정희택 (경상대학교 기계항공공학) ;
  • 정효민 (경상대학교 기계항공공학부)
  • Published : 2004.05.01
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Abstract

This paper is intended as an investigation of study on the thermal and electrical characteristics of the carbon heating element. In this experimentation, the electric material used is the crystalline graphite a kind of natural graphite. The bentonite is used to solidify the heating element and the vacuum furnace is used for sintering it. It is noted that the natural drying time should be at least 58 hours. The plating of the electric pole with the electroless nickel showed the lowest contact resistance among others. The resistance shows linear variation with regard to length. For the insulation and resolution, the glaze coating is best with 80% of water content. The temperature rising characteristic of the heating element is better than sheath heater saving 43% of rising time. The correlation equation for temperature was obtained with the electric power.

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References

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