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이광성(Kwang-Sung Lee),배강열(Kang-Youl Bae),정효민(Hyo-Min Jeong),정한식(Han-Shik Chung),이광영(Kwang-Young Lee),전지수(Ji-Su Chun) 대한기계학회 2002 대한기계학회 춘추학술대회 Vol.2002 No.5
This research aims for replacing a general sheath heater and manufactured two kinds of a carbon bar type heating rod. The carbon heating rod have a ingredients of bentonite. graphite. methyl cellulose and water. we compared a performance of temperature between the carbon heating rod and sheath heater. As a main parameters. we changed the input electric power with 50. 100 and 50Watts. The experimental results are as followings; when the input electric power was constant, the carbon heating rod had a minimum electric current, but the input electric voltage was high. Among the two kinds of carbon heating rod. the carbon rod with 27wt[%] of graphite showed a high temperature of 30% than a sheath heater, and the reached time for maximum temperature was very short by comparing to sheath heater. These means that the carbon heating rod will be a good heater for a small size warm air circulator.