碳化合物燃料中的水的低温溶解特性及其分子动力学模拟
Zengzhi He1, Chongpeng Du2, Jun Yu3
1School of Chemical Engineering, Northwest University, The Research Center of Chemical Engineering Applying Technology for Resource of Shaanxi, Xian, 710069, Shaanxi, China.
基于煤炭的碳化合物燃料中的水可以结,导致飞行安全问题. 这项研究测量了水溶性,并预测了更安全的喷气式燃料替代品的结晶温度.
科学领域:
- 航空航天工程 航空航天工程
- 材料科学 材料科学 材料科学
- 物理化学 物理化学
背景情况:
- 基于煤炭的碳化合物燃料中的水在低温下存在降冰的风险,可能导致燃料系统故障并危及飞行安全.
- 传统的石油衍生喷气燃料面临着局限性,需要探索替代来源,如基于煤炭的碳化合物.
- 了解水溶性对于管理与替代喷气燃料水污染相关的风险至关重要.
研究的目的:
- 准确测量基于煤炭的碳化合物燃料在一个温度范围内的水溶性.
- 研究这些燃料在低温下水晶化潜力.
- 为安全开发和利用基于煤炭的碳化合物燃料作为喷气式燃料替代品提供数据.
主要方法:
- 卡尔·菲舍尔定位和优化的油脂湿度探测器被用来测量水溶性.
- 为提高精度,对油脂湿度探测器进行了系数校正.
- 使用Materials Studio 2019进行了分子动力学模拟,以分析分子水平上的燃料行为.
主要成果:
- 基于煤炭的碳化合物燃料的水溶性曲线测量在233K和313K之间.
- 分子动力学模拟预测这些燃料的结晶过程发生在248K和258K之间.
- 该研究的重点是燃料内的水丰富区,因为总体含水量低,分布不均.
结论:
- 该研究提供了关于碳化合物燃料的水溶性和结晶温度的关键数据.
- 这些发现有助于评估这些燃料的安全性和可行性,作为石油衍生喷气燃料的替代品.
- 精确的水含量测量和了解其行为对于防止航空中燃料系统故障至关重要.
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