Temperature measurements in confined swirling spray flames by vibrational coherent anti-stokes Raman spectroscopy

Cantu, Luca; Grohmann, Jasper; Meier, Wolfgang; Aigner, Manfred

doi:10.1016/j.expthermflusci.2018.01.029

Cited by 18 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CARS was used to measure the temperature distribution in an evaporating spray flow by Beyrau et al [219]. Cantu [220] applied CARS to measure the temperature in confined swirling spray flame. Structured laser illumination planar imaging was used for the measurement of spray flow by Berrocal et al [221], Kristensson et al [222] and Berrocal at al [223].…”

Section: Microscale Flowmentioning

confidence: 99%

Particle-based temperature measurement coupled with velocity measurement

Someya

2020

Meas. Sci. Technol.

View full text Add to dashboard Cite

This review article focuses on the simultaneous particle-based measurement of velocity and temperature. The thermographic PIV with phosphor particles is included in the scope. However, there are many other dye-doped particles that can be used in these methods, some of which are more suitable for measurements of liquid flow and low temperature flow.This review summarized the methods for fabrication, applications, optical properties, and limitations of temperature sensitive particles, and the extensive coverage of the field provided by this review renders it useful as a base for further experimentation. Dopant sensor molecules are also summarized in this review make it possible to fabricate functional particles that are suitable for the aims of an individual researcher. These particles are excited by a UV-laser and several kinds of them can be excited using a common green laser.Several approaches to velocity and temperature measurements, mono-color intensity-based method, the ratiometric method and the lifetime method are explained. The combined methods are limited by velocity conditions; therefore, decoupling the temperature measurement from the velocity measurement is sometimes reasonable. However, combined measurements were also considered in this review.There are many possible sources of error when using these methods; however, the most important factor is the following capacity of the particles, especially in gaseous flow. The deformation of particle images because of the long exposure inherent in the lifetime-based method was discussed quantitatively.Applications of liquid/gas/multiphase flow measurements were introduced. Micro capsules or microbeads are often used for a liquid flow and a microchannel flow. Many previous works use a phosphor for a high temperature gas flow. Uncertainties are different on a case-by-case basis. Accurate calibration is very important in suppressing errors. The development of easy calibration methods or calibration free methods while retaining high accuracy is an important issue in future work.

show abstract

Section: Microscale Flowmentioning

confidence: 99%

Particle-based temperature measurement coupled with velocity measurement

Someya

2020

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Potma and Xie [64] have directly visualised lipid phase segregation in single lipid bilayers with CARS. CARS can even be used as a high temporal and spatial resolution thermography technique and has found applications in electronic and opto-electronic device characterisation [65] and even turbomachinery [66].…”

Section: Introductionmentioning

confidence: 99%

Raman Techniques: Fundamentals and Frontiers

et al. 2019

View full text Add to dashboard Cite

Driven by applications in chemical sensing, biological imaging and material characterisation, Raman spectroscopies are attracting growing interest from a variety of scientific disciplines. The Raman effect originates from the inelastic scattering of light, and it can directly probe vibration/rotational-vibration states in molecules and materials. Despite numerous advantages over infrared spectroscopy, spontaneous Raman scattering is very weak, and consequently, a variety of enhanced Raman spectroscopic techniques have emerged. These techniques include stimulated Raman scattering and coherent anti-Stokes Raman scattering, as well as surface- and tip-enhanced Raman scattering spectroscopies. The present review provides the reader with an understanding of the fundamental physics that govern the Raman effect and its advantages, limitations and applications. The review also highlights the key experimental considerations for implementing the main experimental Raman spectroscopic techniques. The relevant data analysis methods and some of the most recent advances related to the Raman effect are finally presented. This review constitutes a practical introduction to the science of Raman spectroscopy; it also highlights recent and promising directions of future research developments.

show abstract

“…As the main form of non-contact temperature measurement, optical temperature measurement methods include laser spectroscopy and radiation spectroscopy method. Laser spectroscopy methods, such as laser interferometric holography [9], [10], planar laser-induced fluorescence (PLIF) [11] and coherent anti-Stokes Raman scattering spectroscopy (CARS) [12]- [15], rely on complex, high-precision optical instruments which are expensive and difficult to meet the testing requirements in extreme industrial environments. On the contrary, the radiation spectral method with better environmental adaptability is widely used in industry.…”

Section: Introductionmentioning

confidence: 99%

Two-Dimensional Flame Temperature and Emissivity Distribution Measurement Based on Element Doping and Energy Spectrum Analysis

et al. 2020

View full text Add to dashboard Cite

Most of the existing non-contact flame temperature measurement methods rely on the ideal thermal-optical excitation model, which has a great influence on temperature measurement accuracy. Therefore, based on element doping and energy spectrum analysis, this study proposes a novel twodimensional (2-D) estimation method for flame temperature and emissivity distribution. The element doping method and laser-induced breakdown spectroscopy (LIBS) are introduced into the temperature field test. The external doped element whose spectral radiation characteristics are easy to be analyzed, is regarded as the measured particles to describe the flame temperature distribution from the side. And LIBS is used to analyze and select the doped element, and further determine the effective working wavelength of the optical camera. Besides, the relationship between spectral radiance and emissivity (L -ε) of doped samples is obtained by the emissivity calibration experiment. Then, the 2-D temperature and emissivity distributions can be estimated. Infrared thermograph is used to verify the accuracy of temperature measurement, the measurement error between calculated and standard values is not more than 5%. The experimental results of the oxygen-ethanol combustion flame show that this method can be well applied to the similar temperature measurement.INDEX TERMS Temperature measurement, Spectral emissivity, Element doping, Spectral analysis.

show abstract

Temperature measurements in confined swirling spray flames by vibrational coherent anti-stokes Raman spectroscopy

Cited by 18 publications

References 20 publications

Particle-based temperature measurement coupled with velocity measurement

Particle-based temperature measurement coupled with velocity measurement

Raman Techniques: Fundamentals and Frontiers

Two-Dimensional Flame Temperature and Emissivity Distribution Measurement Based on Element Doping and Energy Spectrum Analysis

Contact Info

Product

Resources

About