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Author : M. A. Thomsen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (535 download)
Download or read book Temperature Measurement in Flames by Raman Spectroscopy written by M. A. Thomsen and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jack A. Salzman
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book Determination of Gas Temperatures from Laser-Raman Scattering written by Jack A. Salzman and published by . This book was released on 1971 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: An investigation was conducted on the feasibility of using Raman scattered laser light to measure local gas temperatures. Temperature error predictions were made based on the statistics of the scattering process and Raman spectral theory. Methods were developed for the calculation of temperature measurement accuracies as a function of Raman signal for different spectral line ratio schemes. The results of these theoretical calculations were compared with experimental rotational Raman data obtained from a laboratory-constructed Raman spectrophotometer. Nitrogen was used as a gas sample for a range of controlled temperatures from 253 to 313 K and pressures from 0. 5 to 5.0 atmospheres.
Author : Tiong Kie Tan
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (117 download)
Download or read book Investigation of Raman Spectroscopic Techniques for Temperature Measurement written by Tiong Kie Tan and published by . This book was released on 1979 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: RAMAN SPECTROSCOPY, TEMPERATURE MEASUREMENT, FLAMES, DATA ANALYSIS, NATURAL GAS-AIR, CURVE FITTING, SOFTWARE.
Author : L. Beardmore
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (597 download)
Download or read book Raman Spectroscopy of Hot Gases and Flames written by L. Beardmore and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. A. Vanderhoff
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (227 download)
Download or read book Laser Raman Spectroscopy of Flames; Temperature and Concentrations in CH4/N2O Flames written by J. A. Vanderhoff and published by . This book was released on 1982 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: A laser Raman spectroscopy apparatus has been used to obtain temperature and major species (N2, H2, CO, cO2, and H2O) concentration measurements in the burnt gas region of CH4/N2O flames. Temperatures measured were in the range of 2100 to 2500 K with computed errors of less than 50 K. The concentration measurements are in good agreement with thermochemical equilibrium calculations.
Author : Bhagwant S. Samyal
Publisher :
ISBN 13 :
Total Pages : 388 pages
Book Rating : 4.:/5 (353 download)
Download or read book Temperature Measurements in Flames Using Rotational Raman Scattering written by Bhagwant S. Samyal and published by . This book was released on 1980 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thom A. Coney
Publisher :
ISBN 13 :
Total Pages : 44 pages
Book Rating : 4.:/5 (31 download)
Download or read book Determination of the Temperature of Gas Mixtures by Using Laser Raman Scattering written by Thom A. Coney and published by . This book was released on 1973 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theoretical model for the Raman rotational spectrum of air was formulated, yielding the spectral temperature dependence; and an error analysis of temperature measurement accuracies was performed. The theoretical spectra and the predicted temperature measurement error of + or - 20 K (7 percent) compared well with experimental data. These experimental data consisted of Raman spectra of air obtained for temperatures ranging from 243 to 313 K at a pressure of 1 atmosphere. The use of selected lines resulted in an experimental accuracy of + or - 13 K (-5 percent).
Author : F. M. Porter
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (597 download)
Download or read book A Study of Temperature Measurement Using Coherent Anti-Stokes Raman Spectroscopy written by F. M. Porter and published by . This book was released on 1985 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Norman Chigier
Publisher : CRC Press
ISBN 13 : 9781560320289
Total Pages : 556 pages
Book Rating : 4.3/5 (22 download)
Download or read book Combustion Measurements written by Norman Chigier and published by CRC Press. This book was released on 1991-04-01 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book begins with an introduction to the general problems of making measurements in high temperature and a presentation of chemically reacting flow systems. It describes each instrument with the various diagnostic techniques and discusses measurements that have been made in furnaces, flames, and rocket engines. The detailed measurement techniques described in this book cover a wide spectrum of applications in combustion systems, including gas turbine, rocket measurement techniques that were developed in laboratories. Information obtained on detailed temperature, velocity, particle size, and gas concentration distribution is leading to improve understanding of the chemical combustion process and to design imporvements in combustors.
Author : Alexander C Bayeh
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (87 download)
Download or read book Rotational and Vibrational Raman Spectroscopy for Thermochemistry Measurements in Supersonic Flames written by Alexander C Bayeh and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High speed chemically reacting flows are important in a variety of aerospace applications, namely ramjets, scramjets, afterburners, and rocket exhausts. To study flame extinction under similar high Mach number conditions, we need access to thermochemistry measurements in supersonic environments. In the current work a two-stage miniaturized combustor has been designed that can produce open supersonic methane-air flames amenable to laser diagnostics. The first stage is a vitiation burner, and was inspired by well-known principles of jet combustors. We explored the salient parameters of operation experimentally, and verified flame holding computationally using a well-stirred reactor model. The second stage of the burner generates an external supersonic flame, operating in premixed and partially premixed modes. The very high Mach numbers present in the supersonic flames should provide a useful test bed for the examination of flame suppression and extinction using laser diagnostics. We also present the development of new line imaging diagnostics for thermochemistry measurements in high speed flows. A novel combination of vibrational and rotational Raman scattering is used to measure major species densities (O2, N2, CH4, H2O,CO2, CO, & H2) and temperature. Temperature is determined by the rotational Raman technique by comparing measured rotational spectra to simulated spectra based on the measured chemical composition. Pressure is calculated from density and temperature measurements through the ideal gas law. The independent assessment of density and temperature allows for measurements in environments where the pressure is not known a priori. In the present study we applied the diagnostics to laboratory scale supersonic air and vitiation jets, and examine the feasibility of such measurements in reacting supersonic flames. Results of full thermochemistry were obtained for the air and vitiation jets that reveal the expected structure of an under-expanded jet. Centerline traces of density, temperature, and pressure of the air jet agree well with computations, while measurements of chemical composition for the vitiation flow also agree well with predicted equilibrium values. Finally, we apply the new diagnostics to the exhaust of the developed burner, and show the first ever results for density, temperature, and pressure, as well as chemical composition in a supersonic flame. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/151043
Author : T. M. Brown
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (977 download)
Download or read book Multi-point Measurement of Temperature and Species Concentrations in Opposed Jet Flames by UV Raman Scattering written by T. M. Brown and published by . This book was released on 1994 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Marshall Lapp
Publisher :
ISBN 13 :
Total Pages : 45 pages
Book Rating : 4.:/5 (452 download)
Download or read book Laser Raman Probe for Flame Temperature written by Marshall Lapp and published by . This book was released on 1973 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : W. Stricker
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (228 download)
Download or read book Simultaneous Temperature Measurements with Raman and CARS (Coherent Antistokes Raman Scattering) in Laminar Flames written by W. Stricker and published by . This book was released on 1986 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatially resolved temperature measurements in laminar premixed flames were made using Coherent Antistokes Raman Scattering (CARS) and spontaneous Raman spectroscopy. In the case of narrowband (scanning) CARS, the experimental arrangement allows the performance of simultaneous temperature measurements with both techniques. For broadband (multiplex) CARS the measurements have to be made successively. Three different Raman linewidth models were used for CARS data evaluation. The results were compared with the independently recorded rotational Raman temperatures. Temperature differences up to 10% were observed, depending on the linewidth model used. For two, more complicated line-width models the CARS and Raman temperatures are in good agreement.
Author : B. S. Samyal
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book Temperature and Concentration Measurements in H2-air Flames Using Rotational Raman Scattering written by B. S. Samyal and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: AIAA 13th Fluid & Plasma Dynamics Conference, Jul 14-16, 1980, Snowmass, CO.
Author : Kevin McNesby
Publisher :
ISBN 13 :
Total Pages : 32 pages
Book Rating : 4.:/5 (13 download)
Download or read book Flame and Temperature Measurement Using Vibrational Spectroscopy written by Kevin McNesby and published by . This book was released on 2001 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Gaydon
Publisher : Springer Science & Business Media
ISBN 13 : 9400957203
Total Pages : 440 pages
Book Rating : 4.4/5 (9 download)
Download or read book The Spectroscopy of Flames written by A. Gaydon and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Franklin M. Haas
Publisher :
ISBN 13 :
Total Pages : 130 pages
Book Rating : 4.:/5 (199 download)
Download or read book Temperature and Density Measurements in a Variable Pressure Hydrogen Air Flat Flame Using Raman Spectroscopy written by Franklin M. Haas and published by . This book was released on 1989 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
