化工学报2019，Vol.70Issue(z2)：15-19,5.DOI:10.11949/0438-1157.20190430
高压肉豆蔻酸甲酯比定压热容的实验测量
Experimental study on isobaric specific heat capacities of methyl myristate at elevated pressures
摘要
Abstract
The biodiesel, comprised of fatty acid methyl ester and ethyl ester, is considered as an environment-friendly and promising alternative of fuel. The thermophysical properties of biodiesels as well as their components are essential information for the better knowledge of their industrial applications. For instance, in the spray and combustion processes of engine, isobaric specific heat capacity (cp) of fuel has a significant influence on its heat-transfer characteristic. In this work, the cp of methyl myristate are investigated using a flow calorimeter at the temperature range of 323.20—393.26 K and pressures up to 25.12 MPa. The expanded uncertainties of temperature and pressure are decided to be 0.02 K and 5 kPa respectively, while the relative expanded uncertainty of cp is 1.45%. Then based on the experimental data, a correlation is proposed for calculating the cp of methyl myristate, and a satisfactory agreement between calculated results and experimental values can be observed, with the average absolute relative deviation and maximum deviation of 0.13% and 0.38% respectively.关键词
生物柴油/流动/比定压热容/高压/测量/关联式Key words
(MOE Key Laboratory of Thermal-Fluid Science and Engineering , Xi’an Jiaotong University , Xi’an 710049,Shaanxi, China) Key words: biodiesel/ flow/ isobaric specific heat capacity/ elevated pressure/ measurement/ correlation分类
能源科技引用本文复制引用
朱晨阳,杨峰,刘向阳,何茂刚..高压肉豆蔻酸甲酯比定压热容的实验测量[J].化工学报,2019,70(z2):15-19,5.基金项目
国家杰出青年科学基金项目(51525604) （51525604）
