不飽和炭化水素燃料の煙点に及ぼす雰囲気圧力の影響

概要

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Under atmospheric pressure, the tendency of members of unsaturated series to smoke generally decreases with the number of carbon atoms. The effect of ambient pressure on the smoke point has been studied to explore the tendency of alkene fuels to smoke at high pressures. A wick lamp used in this experiment is standardized by JIS. The smoke point was determined for several alkene fuels under various ambient pressures from 0.2 MPa to 1.35 MPa. It has been found that the dependence of ambient pressure on the smoke point of alkene fuels is almost the same as in the case of alkane fuels. That is, as the ambient pressure increases, the smoke point decreases sharply up to the pressure of 0.5 MPa, beyond which it decreases gradually. However the effect of ambient pressure on the smoke point of alkenes is not very strong compared with that of alkanes. In alkenes, the smoke point takes the maximum value with a certain number of carbon atoms at ambient pressures of 0.3 MPa and above. In light of this finding, it can be concluded that there may exist a number of carbon atoms at which the tendency to smoke is minimized in alkenes.
社団法人日本機械学会の論文
1993-07-25