Thermal Efficiency of Oxy-Acetylene Flame (Report 1)

Experiments on ceramic formation from liquid precursor spray axially injected into an oxy-acetylene flame

An aqueous ceramic precursor solution was sprayed axially into an oxy-acetylene flame to produce yttria-stabilized zirconia ceramic deposits. Temperature and velocity fields of the oxy-acetylene flame were characterized by chemiluminescence and particle image velocimetry. Deposit samples were extracted from the flame at several downstream locations to study deposit evolution. The deposit phase ...

XPS and Auger study of the radial variations of diamond thin films grown by the oxy-acetylene flame method

Free standing diamond thin films grown by the oxyracetylene frame method have been investigated by X-ray photoelectron spectroscopy (XPS) and Auger electron spectroscopy (AES). The radial distribution of the sp2-hybridized carbon species on the films and, consequently, the film quality, have been determined. While XPS does not seem to be an appropriate technique to distinguish between very smal...

Thermometry of an oxy-acetylene flame using multiplex degenerate four-wave mixing of C <Subscript>2 </Subscript>

Thermometry of an oxy-acetylene flame using multiplex Degenerate Four-Wave Mixing (DFWM) of C2 is demonstrated. More than 100 rotational transitions in the d3Hg ~ a3H,, (0, 0) Swan band of C2 could be recorded simultaneously by use of a pulsed, broad bandwidth "modeless" laser. Temperatures were inferred by fitting temperature-dependent synthetic spectra of singleor multiple-shot averaged spect...

Degenerate four-wave mixing spectroscopy and spectral simulation of C2 in an atmospheric pressure oxy-acetylene flame

Quantifying Momentum Transfer Due to Blast Waves from Oxy-Acetylene Driven Shock Tubes

Shock tubes have been widely used since the 1950s to study physical phenomena such as shock waves, combustion chemistry, and the response of materiel to blast loading. Recently, laboratory-scale shock tubes driven by oxy-acetylene were described. It was estimated that these shock tubes would not have a significant “jet effect” of expanding gases following the shock front because the combustion ...