Measurement of particulate volume fraction in a coflow diffusion flame using transient thermocouple technique

Date

2004-05-01

Author

Rolando, A
D'Alessio, A
D'Anna, A
Allouis, Christophe Gerard
Beretta, F
Minutolo, P

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

122
views

0
downloads

Transient-thermocouple-based measurements have been used to detect soot and nanoparticles in a coflowing diffusion flame of ethylene. Total particulate volume fractions are measured as a function of the radial coordinate at different axial locations and are compared with the results obtained by UV-visible absorption measurements. The good agreement between the two independent measurements demonstrates that transient-thermocouple measurement is a powerful technique to measure total particulate volume fraction and its emissivity. This technique also furnishes point measurements which, therefore, are not affected by inversion procedures.

URI

https://hdl.handle.net/11511/89889

Journal

COMBUSTION SCIENCE AND TECHNOLOGY

DOI

https://doi.org/10.1080/00102200490428558

Collections

Department of Mechanical Engineering, Article

Suggestions

OpenMETU
Core

Determination of cadmium using slotted quartz tube atom trap atomic absorption spectrometry and metal coatings Özcan Gurbetçioğlu, G. Pelin; Ataman, Osman Yavuz; Department of Chemistry (2010) Flame atomic absorption spectroscopy (FAAS) is a common technique for detecting metals and metalloids in environmental, biological and metallurgical samples. Although it is a rather old technique, it is still very reliable, simple to use and inexpensive. The technique can be used to determine the concentration of over 70 different metals in a solution. However, it has detection limits at mg/L levels. Some atom trapping methods have been developed to reach the detection limits of ng/mL levels. Slotted quartz...
Determination of germanium at trace levels by chloride generation atomic absorption spectrometry Kaya, Murat; Volkan, Mürvet; Department of Chemistry (2004) Trace amounts of germanium is determined by flame atomic absorption spectrometry by utilizing the vaporization of germanium tetrachloride. Using a continuous flow reactor, sample solution is mixed with concentrated hydrochloric acid and heated to 80ð C to form volatile germanium tetrachloride which can be subsequently sent to N2O-C2H2 flame AAS. The necessary conditions for the volatilization of germanium tetrachloride are investigated in detail and the applicability of the method for the determination of t...
Determination of soot temperature, volume fraction and refractive index from flame emission spectrometry Ayranci, Iail; Vaillon, Rodolphe; Selçuk, Nevin; Andre, Frederic; Escudie, Dany (2007-03-01) An inversion scheme based on tomographic reconstruction of flame emission spectra has been developed for nonintrusive characterization of soot temperature and volume fraction fields within an optically thin axisymmetric flame by extracting characteristic information on soot refractive index from spectral gradients of emission spectra. Its performance is assessed by providing input data obtained from intensities simulated by a direct code based on experimental data for a flame available in the literature. Pr...
Investigation of effect of kaolin addition on combustion characteristic of olive residue Batır, Özge; Külah, Görkem; Selçuk, Nevin; Department of Chemical Engineering (2017) In this thesis study, effect of kaolin addition on combustion characteristic of olive residue was investigated by using thermogravimetric analyzer (TGA) combined with Fourier-transform infrared (FTIR) spectrometer in parallel with ash characteristics by X-Ray Fluorescence (XRF) and X-Ray Diffraction (XRD). The experiments were carried out by burning olive residue with 2%, 4% and 8% by wt. kaolin at 900˚C. Results reveal that addition of kaolin leads to decrease in rate of weight loss during char combustion ...
Determination of silver by chemical vapour generation and atomic absoption spectrometry Öztürk, Çağla Pınar; Ataman, Osman Yavuz; Department of Chemistry (2004) A method for determination of silver has been developed based on chemical vapour generation atomic absorption spectrometry (CVGAAS). Volatile species of silver in acidified medium were generated by the reduction of sodium tetrahydroborate; these species were sent to a flame-heated quartz tube atomizer (QTA) following isolation by using a gas-liquid separator. Flow injection (FI) was used for sample introduction. Optimization of parameters such as; concentrations of acid and NaBH4 concentration, flow rates o...

Citation Formats

A. Rolando, A. D’Alessio, A. D’Anna, C. G. Allouis, F. Beretta, and P. Minutolo, “Measurement of particulate volume fraction in a coflow diffusion flame using transient thermocouple technique,” COMBUSTION SCIENCE AND TECHNOLOGY, pp. 945–958, 2004, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/89889.