Journal ArticleDOI
Optical quartz glass as a reference substance for the thermal conductivity coefficient of partially transparent materials
V. K. Bityukov,V. A. Petrov +1 more
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In this paper, a critical analysis is made of all available literature data on the true (phonon, conductive) coefficient of thermal conductivity of optical quartz glasses which are typical materials partially transparent to thermal radiation.Abstract:
A critical analysis is made of all available literature data on the true (phonon, conductive) coefficient of thermal conductivity of optical quartz glasses which are typical materials partially transparent to thermal radiation. Based on the most reliable of these data, the least squares method is used to derive an equation which approximates the temperature dependence of the thermal conductivity coefficient in the range of 600–1500 K. The possibility of application of optical quartz glass as a reference substance for determining the thermal conductivity coefficient of partially transparent materials under conditions of simultaneous radiative-conductive transfer of energy is substantiated.read more
Citations
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Journal ArticleDOI
Fuel-rich methane oxidation in a high-pressure flow reactor studied by optical-fiber laser-induced fluorescence, multi-species sampling profile measurements and detailed kinetic simulations
TL;DR: In this paper, a fiber-optic laser-induced fluorescence (LIF) method is used to detect LIF-active species in a laminar flow reactor.
THERMAL CONDUCTIVITY OF CLEAR FUSED SILICA AT HIGH TEMPERATURES. Research Report 44
K.L. Wray,T.J. Connolly +1 more
TL;DR: In this article, the thermal conductivity of clear fused silica was measured over the temperature range 300 to 2100 deg K in an experiment which minimized radiative energy transport, and the experiment yielded thermal conductivities between 2.6 x 10/sup -3/ and 2.8 x 10 /sup −3/ cal/cm sec deg K at room temperature.
Proceedings ArticleDOI
Optical and thermal modeling of Ti-doped optothermal fiber converter for laser surgery
TL;DR: In this paper, structural, optical, and thermophysical models of a titanium-doped optothermal fiber converter used in contact laser surgery for resection and coagulation of soft tissues were proposed.
Book ChapterDOI
Thermo-physical properties for severe accident analysis
TL;DR: In this paper, the authors present a complete and consistent set of analytical approximations appropriate for computational analysis for the following materials: uranium dioxide, zirconium dioxide, stainless steel, zinc oxide, aluminum oxide, silicon dioxide, iron oxide, molybdenum, boron oxide, reactor corium, sodium, lead, bismuth and lead-bismuth alloys.
Journal ArticleDOI
An inexpensive high-temperature optical fiber thermometer
TL;DR: In this paper, an optical fiber thermometer is developed by applying a thin coating of a high-temperature cement onto the tip of a silica optical fiber, and an FTIR spectrometer is used to detect the spectral radiance exiting the fiber.
References
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Journal ArticleDOI
Thermal Conductivity of Clear Fused Silica at High Temperatures
Kurt L. Wray,Thomas J. Connolly +1 more
TL;DR: In this article, the thermal conductivity of clear fused silica was measured over the temperature range 300-2100°K in an experiment which minimized radiative energy transport, and the experiment yielded thermal conductivities between 2.6×10−3 and 2.9× 10−3 cal/cm sec°K.
Journal ArticleDOI
Some new developments on coupled radiative ― conductive heat transfer in glasses ― experiments and modelling
TL;DR: In this article, the authors proposed a methodology based on an experimental and numerical investigation, in order to separate the conductive and radiative part in a combined heat transfer in semi-transparent materials.
Journal ArticleDOI
The Precise Determination of Thermal Conductivity of Pure Fused Quartz
TL;DR: In this article, the temperature dependence of the thermal conductivity of pure fused quartz is measured precisely over the temperature range 0° to 500°C, and the results obtained are among the most reliable since the experimental accuracy is estimated to be ± 1.5% and the purity of the fused quartz sample was 99.97%, exceeding the purity results previously published.