Vaporization of a liquid hexanes jet in cross flow |
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| Institution: | 1. Energy Efficiency Department, Korea Institute of Energy Research, Daejeon, Republic of Korea;2. School of Aerospace Systems, University of Cincinnati, Cincinnati, OH, USA;3. Department of Mechanical Engineering, Dankook University, Yongin, Gyeonggi, Republic of Korea;1. Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA;2. Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA;1. School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, PR China;2. Department of Mechanical Engineering, College of Engineering, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand |
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| Abstract: | The vaporization characteristics of a liquid hexanes jet in a lab-scale test section with a plain orifice-type injector were experimentally investigated. The experimental measurements were carried out on the basis of the infrared laser extinction method using two He–Ne lasers (one at 632.8 nm and the other at 3.39 μm). The momentum flux ratio (qF/A) was varied from 20 to 60 over 20 steps, and the supplying air temperature (TA) was changed from 20 to 260 °C over 120 steps. The objectives of the current study were to assess the vaporization characteristics of a liquid hexanes jet and to derive a correlation between flow conditions and hexanes vapor concentration in a jet-in-crossflow configuration. From the results of the experimental measurement, it was concluded that hexanes vapor concentration increased with the increase of the momentum flux ratio and the supplying air temperature. An experimental correlation between flow conditions and hexanes vapor concentration (ZF) was proposed as a function of the normalized horizontal distance (x/do), the supplying air temperature (TA), the momentum flux ratio (qF/A), the fuel jet Reynolds number (ReF), and the fuel jet Weber number (WeF). |
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| Keywords: | Jet-in-crossflow Hexanes vapor concentration Infrared laser extinction method Lab-scale test section Plain orifice-type injector |
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