Optical characterization of ethane droplets in the vicinity of critical pressure

IF 1.8 4区 工程技术 Q4 ENERGY & FUELS Oil & Gas Science and Technology – Revue d’IFP Energies nouvelles Pub Date : 2020-01-01 DOI:10.2516/ogst/2020039
Chanisa Kanjanasakul, F. Grisch, S. Saengkaew, G. Grehan
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引用次数: 3

Abstract

The characterization of the properties of fuel droplets around the critical pressure is an experimental challenge. The aim of this study is to measure the size and the refractive index of droplets in high pressure conditions, close to the ones of the critical point. For this purpose, an experimental facility of injection of quasi-monodispersed droplets at high pressure has been developed. Rainbow refractometry has been used to probe droplets in the pressure range 1–50 bar. For water and ethanol droplets, evolutions of their index of refraction with pressure were obtained. For measurements with a liquid fluid near its critical point, ethane was selected because its critical point is 48.7 bar and 32.2 °C. Refractive index measurements on ethane droplets were carried out in the range of pressure and temperature 40–46 bar and 18–25 °C respectively. These unique results show that the rainbow refractometry diagnosis offers undeniable potentials for studying fuel injection under transcritical thermodynamic conditions.
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临界压力附近乙烷液滴的光学表征
在临界压力附近表征燃料液滴的特性是一项实验挑战。本研究的目的是测量高压条件下接近临界点的液滴的尺寸和折射率。为此,研制了一种准单分散液滴高压注射实验装置。彩虹折射法已用于探测1-50 bar压力范围内的液滴。得到了水和乙醇水滴的折射率随压力的变化规律。对于接近其临界点的液体流体的测量,选择乙烷,因为它的临界点是48.7巴和32.2°C。在40 ~ 46 bar的压力和18 ~ 25℃的温度范围内,对乙烷液滴的折射率进行了测量。这些独特的结果表明,彩虹折射诊断为研究跨临界热力学条件下的燃油喷射提供了不可否认的潜力。
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来源期刊
CiteScore
2.70
自引率
0.00%
发文量
0
审稿时长
2.7 months
期刊介绍: OGST - Revue d''IFP Energies nouvelles is a journal concerning all disciplines and fields relevant to exploration, production, refining, petrochemicals, and the use and economics of petroleum, natural gas, and other sources of energy, in particular alternative energies with in view of the energy transition. OGST - Revue d''IFP Energies nouvelles has an Editorial Committee made up of 15 leading European personalities from universities and from industry, and is indexed in the major international bibliographical databases. The journal publishes review articles, in English or in French, and topical issues, giving an overview of the contributions of complementary disciplines in tackling contemporary problems. Each article includes a detailed abstract in English. However, a French translation of the summaries can be provided to readers on request. Summaries of all papers published in the revue from 1974 can be consulted on this site. Over 1 000 papers that have been published since 1997 are freely available in full text form (as pdf files). Currently, over 10 000 downloads are recorded per month. Researchers in the above fields are invited to submit an article. Rigorous selection of the articles is ensured by a review process that involves IFPEN and external experts as well as the members of the editorial committee. It is preferable to submit the articles in English, either as independent papers or in association with one of the upcoming topical issues.
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