| 元泽民，赵贯甲，尹建国，马素霞.棕榈酸甲酯及棕榈酸乙酯高温热物理性质的研究[J].内燃机工程,2019,40(5):67-73. |
| Study on Thermophysical Properties of Methyl Palmitate and Ethyl Palmitate at High Temperature |
| DOI：10.13949/j.cnki.nrjgc.2019.05.010 |
| Key Words:surface tension viscosity density refractive index methyl palmitate ethyl palmitate |
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| Abstract:To provide theoretical basis and test data support for methyl palmitate and ethyl palmitate, which are two fatty acid esters, to be used as fuels or fuel additives in diesel engine, their thermophysical properties including surface tension, viscosity, density and refractive index were investigated in a wide temperature range by the surface light scattering, vibration tube and total reflection. The test data of the density and refractive index of both palmitates were correlated respectively as polynomial and linear functions of temperature. The average absolute deviations of density values calculated with the polynomial functions from the test data were 0.033% and 0.013% respectively, and both the average absolute deviations of refractive index values calculated with the liner function from the test data were 0.004%. The test data of the viscosities of both palmitates were correlated as polynomial functions of the reciprocal of temperature, and the average absolute deviations of these values calculated with the polynomial functions from the test data were 1.76% and 2.30% respectively. The test data of the surface tension of both palmitates were correlated as the van der Waals type functions, and the average absolute deviations of these values calculated with the van der Waals type functions from the test data were 0.86% and 1.70% respectively. |
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