portada Flame Radiation, Structure, and Scalar Properties in Microgravity Laminar Fires (en Inglés)

Flame Radiation, Structure, and Scalar Properties in Microgravity Laminar Fires (en Inglés)

Formato

Libro Físico

Autor

Nasa Technical Reports Server (Ntrs)

Douglas Feikema

Editorial

Bibliogov

Idioma

Inglés

N° páginas

Encuadernación

Tapa Blanda

Dimensiones

24.6x18.9x0.1 cm

Peso

0.07 kg.

ISBN13

9781289231194

Categorías

Política y gobierno

Flame Radiation, Structure, and Scalar Properties in Microgravity Laminar Fires (en Inglés)

Nasa Technical Reports Server (Ntrs) (Autor) · Douglas Feikema (Autor) · Bibliogov · Tapa Blanda

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Reseña del libro "Flame Radiation, Structure, and Scalar Properties in Microgravity Laminar Fires (en Inglés)"

Results from microgravity combustion experiments conducted in the Zero Gravity Research Facility (ZGF) 5.18 second drop facility are reported. The results quantify flame radiation, structure, and scalar properties during the early phase of a microgravity fire. Emission mid-infrared spectroscopy measurements have been completed to quantitatively determine the flame temperature, water and carbon dioxide vapor concentrations, radiative emissive power, and soot concentrations in microgravity laminar methane/air, ethylene/nitrogen/air and ethylene/air jet flames. The measured peak mole fractions for water vapor and carbon dioxide are found to be in agreement with state relationship predictions for hydrocarbon/air combustion. The ethylene/air laminar flame conditions are similar to previously reported results including those from the flight project, Laminar Soot Processes (LSP). Soot concentrations and gas temperatures are in reasonable agreement with similar results available in the literature. However, soot concentrations and flame structure dramatically change in long-duration microgravity laminar diffusion flames as demonstrated in this report.