Measurement and prediction of speed of sound of three FAEEs

doi:10.11949/j.issn.0438-1157.20160236

CIESC Journal ›› 2016, Vol. 67 ›› Issue (7): 2679-2684.DOI: 10.11949/j.issn.0438-1157.20160236

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Measurement and prediction of speed of sound of three FAEEs

ZHENG Xiong, CHEN Yutian, ZHANG Ying, HE Xinxin, LIANG Lili, HE Maogang

Key Laboratory of Thermal-Fluid Science and Engineering of MOE, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

Received:2016-03-02 Revised:2016-04-05 Online:2016-07-05 Published:2016-07-05
Supported by:
supported by the National Science Fund for Distinguished Young Scholars of China (51525604).

三种脂肪酸乙酯声速的实验测量与理论估算

郑雄, 陈玉田, 张颖, 何欣欣, 梁俐俐, 何茂刚

西安交通大学热流科学与工程教育部重点实验室, 陕西西安 710049

通讯作者: 何茂刚
基金资助:
国家杰出青年基金项目（51525604）。

Abstract

Abstract:

Biodiesels are regarded as the promising additives for fossil fuels, and fatty acid ethyl esters (FAEEs) are the main components of biodiesels. In order to obtain their speed of sound data, the speed of sound of three FAEEs were measured in this work using Brillouin light scattering method at temperatures from 293.15 K to 473.15 K and pressure of 0.1 MPa. The correlation for the speed of sound was also fitted as the function of temperature. The AAD was 0.13% for ethyl hexanoate, 0.11% for ethyl cinnamate and 0.08% for ethyl caprylate. The experimental data were also used to assess the predictive ability of Wada's model and Auerbach's model. It was shown that the former performed better than the latter one for the prediction of speed of sound of FAEEs.

Key words: fatty acid ethyl esters, speed of sound, Wada's model, Auerbach's model

摘要：

生物燃料作为化石燃料的替代物越来越受到人们的关注，脂肪酸乙酯（FAEEs）是生物燃料中的重要成分。为了获取生物燃料组分的物性参数，补充现有数据不足，利用布里渊散射法对3种脂肪酸乙酯的声速进行了测量，测量温度范围为293.15~473.15 K，压力为0.1 MPa。为方便工程应用，实验数据被拟合成温度的函数，实验值与关联式计算值的相对偏差绝对平均值为：0.13%（己酸乙酯）、0.11%（庚酸乙酯）、0.08%（辛酸乙酯）。实验数据也被用来评估两种生物燃料声速预测方法，结果表明，Wada模型优于Auerbach模型，更适合脂肪酸乙酯的声速预测。

关键词: 脂肪酸乙酯, 声速, Wada模型, Auerbach模型

CLC Number:

ZHENG Xiong, CHEN Yutian, ZHANG Ying, HE Xinxin, LIANG Lili, HE Maogang. Measurement and prediction of speed of sound of three FAEEs[J]. CIESC Journal, 2016, 67(7): 2679-2684.

郑雄, 陈玉田, 张颖, 何欣欣, 梁俐俐, 何茂刚. 三种脂肪酸乙酯声速的实验测量与理论估算[J]. 化工学报, 2016, 67(7): 2679-2684.

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Measurement and prediction of speed of sound of three FAEEs

三种脂肪酸乙酯声速的实验测量与理论估算

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