Download or read book Evaluation of Probe Sampling Versus Optical in Situ Measurements of Nitric Oxide Concentrations in a Jet Engine Combustor Exhaust written by J. D. Few and published by . This book was released on 1977 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Measurements of nitric oxide (NO) concentrations were made at the exhaust of a jet engine combustor by conventional gas-sampling probe and chemiluminescent analyzer methods, by optical resonance absorption through absorption cells located within the gas sample transfer line, and by optical resonance absorption directly through the combustor exhaust. The combustor was exhausted to atmospheric pressure and was operated at an inlet temperature near 600F, a total pressure of about 3 to 4 atm, and at fuel-to-air ratios (f/a) from 0.01 to 0.05. A tubular inlet, liquid-cooled, stainless steel sampling probe was inserted into the gas stream at the combustor exit. The optical technique used was the resonance absorption method for the (0,0) gamma-band of NO at wavelengths ranging from 2,200 to 2,270 A. The results showed that within the sampling line both the chemiluminescent gas analyzer and the optical absorption method gave NO concentrations that agreed within about 20 percent.

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1006 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optical in Situ Versus Probe Measurements of Nitric Oxide Concentration as a Function of Axial Position in a Combustor Exhaust written by J. D. Few and published by . This book was released on 1979 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitric oxide (N0) concentration was measured at three axial stations (6.5, 12, and 25 nozzle diameters downstream of a combustor nozzle exit) in a jet engine combustor exhaust by a gas-sampling probe in conjunction with conventional gas analyzers and an optical resonance absorption technique. The gas analyzer system permitted measurements of NO, NO sub x, CO, CO sub 2, and C sub x, H sub y (total hydrocarbons) whereas the optical absorption technique permitted measurement of NO only. The combustor was exhausted into a test cell of slightly less than atmospheric pressure and was operated at an inlet air temperature of 589 K, a total pressure of 344.3 kPa, and a fuel-to-air ratio (f/a) of 0.02. A multiprobe rake was used to acquire emissions, total pressure and temperature, and static pressure data at the measurement stations. The measurements of total pressure, total temperature, and measured static pressure were used to determine static temperature and pressure profiles at each measurement station, which are required for determining NO concentration by the optical absorption technique.

Download or read book Nitric Oxide Measurement Study written by and published by . This book was released on 1981 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1981 with total page 1372 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Journal of the Air Pollution Control Association written by Air Pollution Control Association and published by . This book was released on 1977 with total page 1264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Acid Precipitation written by and published by . This book was released on 1983 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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Download or read book Recent Developments in the Estimation of Potential Effects of High Altitude Aircraft Emissions on Ozone and Climate written by Robert Carl Oliver and published by . This book was released on 1979 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NASA SP written by and published by . This book was released on 1980 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Conference on Environmental Sensing and Assessment September 14 19 1975 Las Vegas Nevada written by American Chemical Society and published by . This book was released on 1976 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt: