Lee Kenneth Y
Department of Civil and Environmental Engineering, University of Massachusetts Lowell, Lowell, MA 01854, USA.
J Hazard Mater. 2008 Dec 15;160(1):94-9. doi: 10.1016/j.jhazmat.2008.02.088. Epub 2008 Mar 4.
In the United States, a gasoline fuel blend with alcohol volume fractions of 85% or more is considered (among other fuels) an alternative fuel. As the popularity and usage of high-alcohol content gasoline fuel blends increase, subsurface contamination from these fuels will be of great environmental concern. An important parameter governing the movement of these contaminants in unsaturated porous media is the liquid viscosity. In this study, five sets of experiments are conducted to determine viscosity variations of (a) blends of 15% gasoline with various alcohol mixtures, and (b) mixtures of high-alcohol content gasoline fuel blends with various volume fractions of water. The three alcohols considered in this study are ethanol, methanol, and isopropanol. The viscosity of each liquid mixture is observed using a modified falling-ball viscometer.
在美国，酒精体积分数为85%或更高的汽油混合燃料（在其他燃料之中）被视为替代燃料。随着高酒精含量汽油混合燃料的普及和使用增加，这些燃料造成的地下污染将成为重大环境问题。控制这些污染物在非饱和多孔介质中运移的一个重要参数是液体粘度。在本研究中，进行了五组实验，以确定（a）15%汽油与各种酒精混合物的混合燃料，以及（b）高酒精含量汽油混合燃料与不同体积分数水的混合物的粘度变化。本研究中考虑的三种酒精是乙醇、甲醇和异丙醇。使用改良的落球粘度计观察每种液体混合物的粘度。
