Evaluation of the Physicochemical Authenticity of Aviation Kerosene Surrogate Mixtures. Part 2: Analysis and Prediction of Thermophysical Properties
Evaluation of the Physicochemical Authenticity of Aviation Kerosene Surrogate Mixtures. Part 2: Analysis and Prediction of Thermophysical Properties
复制标题
DOI：
10.1021/ef1004978
复制
发表时间：
2010-08-01
期刊：
影响因子：
5.3
通讯作者：
Huber, Marcia L.
中科院分区：
文献类型：
--
作者：
Bruno, Thomas J.;Huber, Marcia L.
在本系列两篇论文的第1部分（10.1021/ef 100496 j）中，我们提出了一种评估策略，可应用于成品燃料的替代混合物。该策略使用先进的蒸馏曲线方法来评估替代品的物理化学真实性或替代品代表成品燃料的化学和物理性质的程度。虽然该方案可以应用于任何替代品系列，但这里特别感兴趣的是Jet-A/JP-8的替代品。如第1部分（10.1021/ef 100496 j）所述，详细研究了挥发性，而在这里，我们重点关注密度、声速和粘度。我们用美国国家标准与技术研究所（NIST）的REFPROP程序（其中包含状态方程和输运性质模型）计算了常见Jet-A/JP-8替代物和Jet-A的这些性质。然后，我们使用REFPROP作为替代混合物设计工具，并开发了一个简单的，三组分替代混合物（正十二烷，正十四烷，和1，2，4-三甲基苯的质量分数分别为0.31，0.38和0.31）。该混合物随后在实验室中配制，并使用先进的蒸馏曲线方法进行测量。我们发现与理论的一致性非常好（在1.5摄氏度内），我们还发现这种简单混合物代表Jet-A/JP-8的能力也非常好。与计算出的密度、声速和粘度的比较也很好。
In part 1 (10.1021/ef100496j) of this series of two papers, we presented an evaluation strategy that can be applied to surrogate mixtures for finished fuels. This strategy uses the advanced distillation curve approach to evaluate the surrogate in terms of physicochemical authenticity or how well the surrogate represents the chemical and physical properties of the finished fuel. While this protocol can be applied to any surrogate family, of particular interest here are surrogates for Jet-A/JP-8. The volatility was studied in detail as described in part 1(10.1021/ef100496j), whereas here, we focus on density, speed of sound, and viscosity. We calculated these properties for the common Jet-A/JP-8 surrogates and Jet-A, with the National Institute of Standards and Technology (NIST) REFPROP program (which incorporates equations of state and a transport property model). We then used REFPROP as a surrogate mixture design tool and developed a simple, three-component surrogate mixture (n-dodecane, n-tetradecane, and 1,2,4-trimethylbenzene with mass fractions of 0.31, 0.38, and 0.31, respectively). This mixture was subsequently formulated in the laboratory and measured with the advanced distillation curve approach. We found the agreement with the theory to be excellent (within 1.5 degrees C), and we also found that the ability of such a simple mixture to represent Jet-A/JP-8 was also excellent. Comparisons made to the calculated density, speed of sound, and viscosity were also excellent.