月桂酸乙酯的液相音速测量

Measurement of Sound Speed of ethyl laurate

中文关键词: 月桂酸乙酯  音速  光散射法  

英文关键词: ethyl laurate  sound speed  light scattering method

中文摘要:

      脂肪酸甲酯（FAMEs）、脂肪酸乙酯（FAEEs）是生物柴油中的重要成分，为了计算发动机燃油喷射角度，需要获取生物柴油组分的音速。利用动态光散射法，在 0.1、2、4、6、8 MPa下测量了月桂酸乙酯的液相音速，温度范围为295.15 ~ 353.15 K。为满足工程应用需求，根据实验数据，给出了月桂酸乙酯音速与温度和压力的关联式。在实验温、压范围内，实验值与关联式计算值的相对偏差绝对平均值为0.32%。

英文摘要:

      Fatty acid methyl esters (FAMEs) ,and fatty acid ethyl esters (FAEEs) are the main components of biodiesels. To calculate the fuel injection angle of engine, the sound speed of the main components should be known. In this work, the sound speed of ethyl laurate was measured by the Brillouin light scattering method. The measurements were carried out at temperatures ranging from 295.15 to 353.15 K 0.1, 2.0, 4.0, 6.0 and 8.0 MPa respectively. A rational function that correlatesd csound speed as a function of the pressure and temperature was obtained from the experimental data.In comparison of the experimental sound speed to the correlation results in the measured range, the absolute average deviations (AADs) arewere 0.32%