Measurement of light extinction constant of JP-8 soot in the visible and near-infrared spectrum

被引：22

作者：

Zhu, JY

Irrera, A

Choi, MY

Mulholland, GW

Suo-Anttila, J

Gritzo, LA

机构：

[1] Argonne Natl Lab, Transportat Technol R&D Ctr, Argonne, IL 60439 USA

[2] Drexel Univ, Philadelphia, PA 19104 USA

[3] NIST, Bldg & Fire Res Lab, Gaithersburg, MD 20899 USA

[4] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2004年 / 47卷 / 17-18期

关键词：

soot; extinction constant; radiative properties; light extinction; two-wavelength pyrometry;

D O I：

10.1016/j.ijheatmasstransfer.2004.04.013

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The dimensionless extinction constant, K-e, was measured using the NIST large agglomerate optics facility (LAOF) for soot produced from JP-8 flames. Measurements were performed using light sources ranging from 632.8 to 1565 nm. These experiments represent the first measurement of dimensionless extinction constant for soot produced from JP-8 flames. The K-e values did not display significant spectral variations that were observed for pure fuels such as acetylene and ethene. The measured K-e values ranged from 9.75 to 9.95 in the wavelength range between 632.8 and 1565 nm. Measurements provide a more reliable value of K, for use in optical-based soot diagnostics for soot concentration and temperature measurement as well as for soot radiation analysis. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：3643 / 3648

页数：6

共 18 条

[1] COMPARISONS OF THE SOOT VOLUME FRACTION USING GRAVIMETRIC AND LIGHT EXTINCTION TECHNIQUES [J].