Application of Rainbow Thermometry to the Study of Fuel Droplet Heat-Up and Evaporation Characteristics
| Autor: | Subramanian V. Sankar, William D. Bachalo, Dale H. Buermann |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Kerosene
Materials science Chemistry Mechanical Engineering Flow (psychology) Analytical chemistry Evaporation Energy Engineering and Power Technology Aerospace Engineering Thermodynamics Mechanics Combustion Temperature measurement Physics::Fluid Dynamics Fuel Technology Nuclear Energy and Engineering Thermometer Vaporization Particle |
| Zdroj: | Journal of Engineering for Gas Turbines and Power. 119:573-584 |
| ISSN: | 1528-8919 0742-4795 |
| DOI: | 10.1115/1.2817023 |
| Popis: | Advanced, non-intrusive, laser-based diagnostics are being developed for simultaneously measuring the size, velocity, temperature, and instantaneous regression rates of vaporizing/burning fuel droplets in polydisperse flow environments. The size and velocity of the droplets are measured using a conventional phase Doppler particle analyzer (PDPA), whereas the droplet temperatures are simultaneously measured with a rainbow thermometer. This integrated diagnostic has been applied to the study of fuel droplet heat-up characteristics in a swirl-stabilized kerosene spray flame. It has also been shown that a novel extension of rainbow thermometry can be used to additionally extract the instantaneous droplet vaporization rate. The feasibility of measuring the instantaneous regression rate has also been demonstrated using controlled experiments with a vaporizing/burning stream of ethanol droplets.Copyright © 1996 by ASME |
| Databáze: | OpenAIRE |
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