연소장내 화염계측 오차 평가
Error Evaluation on Flame Measurement in Combustion Field
양영준
․ 허태영*
Yang Young Joon and Heo Tae Young
Key Words : PDA(위상도플러측정기), Measurement Error(측정에러), Laser Measurement(레이저측정), Combustion
Field(연소장)
ABSTRACT
Spray combustion has been used in many industrial fields, for instance, such as diesel engines, gas turbines and industrial furnaces, and furthermore various measurement techniques have been applied to elucidate the phenomenon of spray combustion. In order to measure simultaneously the droplet velocity and the droplet size of spray, Phase Doppler Anemometry (PDA) was frequently used in spray combustion. However, the measurement error is occurred due to existence of flame, which is considered as influencing the precision of measurement. Therefore, the purpose of this study is experimentally to conduct the systematic evaluation on the measurement error when PDA measurement is applied to combustion field.
연소장내 화염계측 오차 평가
Error Evaluation on Flame Measurement in Combustion Field
양영준
․ 허태영*
Yang Young Joon and Heo Tae Young
Key Words : PDA(위상도플러측정기), Measurement Error(측정에러), Laser Measurement(레이저측정), Combustion
Field(연소장)
ABSTRACT
Spray combustion has been used in many industrial fields, for instance, such as diesel engines, gas turbines and industrial furnaces, and furthermore various measurement techniques have been applied to elucidate the phenomenon of spray combustion. In order to measure simultaneously the droplet velocity and the droplet size of spray, Phase Doppler Anemometry (PDA) was frequently used in spray combustion. However, the measurement error is occurred due to existence of flame, which is considered as influencing the precision of measurement. Therefore, the purpose of this study is experimentally to conduct the systematic evaluation on the measurement error when PDA measurement is applied to combustion field.
1. 서 론
2. 실험장치 및 방법
한국소음진동공학회 2014년 추계학술대회
(a) Sample number (b) Validation rate (c) Rms of particle diameter
Fig. 2. Relation between Laser output and measurement error (Lt=125mm, H=175mm)
Fig. 1. Schematic diagram of experimental apparatus.
3. 실험결과 및 고찰
μ
4. 결 론
참 고 문 헌
(1) N. M. Laurendeau, “Temperature Measurement by Light-Scattering Methods”, Prog. Energy Combust. Sci., vol. 14, pp. 147-170, 1988.
(2) F. Drust, A. Melling and J. H. Whitelaw,
“Principle and Practice of Laser Doppler-Anemometry", Academic Press.
1976.
(3) W. D. Bachalo and M. J. Houser, "Phase/Doppler Spray Analyzer for Simultaneous Measurements of Drop Size and Velocity Distributions", Opt. Eng., vol. 23, no. 5, pp. 583-590, 1984.
(4) D. L. Black, M. Q. McQuay and M. P. Bonin, "Laser-Based Techniques for Particle-size Measurement: A Review of Sizing Methods and their
Industrial Applications", Prog. Energy Combust. Sci., vol. 22, pp. 267-306, 1996.
