대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)
- 제22권4호
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- Pages.551-561
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- 1998
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- 1226-4881(pISSN)
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- 2288-5324(eISSN)
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석유 팬 히터의 연소실 주변 열전달 특성
Heat transfer characteristics around a circular combustion chamber of kerosene fan heater
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김장권
(군산대학교 기관공학과)
- 발행 : 1998.03.01
초록
This paper was studied to understand the characteristics of heat transfer coefficients and surface temperature distributions around a circular combustion chamber within the heat-intercept duct of kerosene fan heater. The experiment was carried out in the heat-intercept duct of kerosene fan heater attached to the blow-down-type subsonic wind tunnel with a test section of 240 mm * 240 mm * 1200 mm. The purpose of this paper was to obtain the basic data related with normal combustion for new design from conventional kerosene fan heater, and to investigate the effect of surface temperature, local and mean heat transfer coefficients versus flow-rate of convection axial fan according to the variations of heat release conditions from kerosene fan heater during normal combustion. Consequently it was found that (i) the revolution of convection axial fan during combustion had a smaller value than that of non-combustion because of the thermal resistance due to the high temperature in the heat-intercept duct, (ii) the pressure ratio P
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