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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국연소학회 한국연소학회지 한국연소학회지 제13권 제3호
발행연도
2008.9
수록면
17 - 23 (7page)

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The spray combustion and spray cooling depends on droplet evaporation. So, evaporation model for spray has been requested and lots of investigation has been done and various reliable models have been developed also for last few decades. In the present study, One dimensional quasi-steady spherically symmetric droplet evaporation model for micro-gravity is developed. The gas phase was assumed as steady state and the thermophysical properties are calculated as a function of temperature, pressure and composition and the properties used in the model was validated by NIST web data and overall evaporation history results was compared with experimental results by Nomura and Qasim and gave satisfactory agreements.
Through this model, diverse phenomenon was investigated, especially regarding the effects of ambient pressure and temperature. The effects of pressure for the droplet evaporation time were studied. The high pressure increased the droplet surface temperature and made effect on the evaporation time depend on atmospheric temperature. The role of the ambient temperature was investigated and explained. The basic investigated and the well-known phenomena, like D-square-law, were reported, too.

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UCI(KEPA) : I410-ECN-0101-2009-431-019447845