Accuracy of Reconstruction of the Spatial Temperature Distribution Based on Surface Temperature Measurements by Resistance Sensors

2016 ◽  
pp. 567-576
Author(s):  
Mykhaylo Dorozhovets ◽  
Mariana Burdega ◽  
Zygmunt L. Warsza
Keyword(s):  
Temperature Distribution ◽  
Surface Temperature ◽  
Temperature Measurements ◽  
Spatial Temperature Distribution ◽  
Spatial Temperature

Spatial temperature distribution in CW CO2 laser photosensitized reactions

1984 ◽  
Vol 49 (6) ◽  
pp. 1354-1359 ◽  
Author(s):  
Pavel Kubát ◽  
Josef Pola
Keyword(s):  
Temperature Distribution ◽  
Chemical Reactions ◽  
Co2 Laser ◽  
Computational Procedure ◽  
Heat Convection ◽  
Inert Gas ◽  
Spatial Temperature Distribution ◽  
Cw Co2 Laser ◽  
Spatial Temperature

The temperature distribution in gaseous SF6 and SF6-inert gas samples under irradiation with cw CO2 laser measured by a thermocouple technique is confronted with the results of a computational procedure neglecting heat convection. The results are helpful in understanding the effect of the inert gas on the distribution of temperature and the size of the reacting hot volume in the cw laser-photosensitized chemical reactions.

scholarly journals Subpixel Temperature Measurements in Plasma Jet Environments Using High-Speed Multispectral Pyrometry

2018 ◽  
Vol 140 (7) ◽  
Author(s):  
Tairan Fu ◽  
Jiangfan Liu ◽  
Minghao Duan ◽  
Sen Li
Keyword(s):  
Temperature Distribution ◽  
High Speed ◽  
Leading Edge ◽  
Plasma Jet ◽  
Temperature Measurements ◽  
Convective Heating ◽  
Small Data ◽  
Supersonic Plasma ◽  
Supersonic Plasma Jet ◽  
Spatial Temperature

A high-speed (2 kHz) near-infrared (1.0–1.65 μm) multispectral pyrometer was used for noninvasive measurements of the subpixel temperature distribution near the sharp leading edge of a wing exposed to a supersonic plasma jet. The multispectral pyrometer operating in the field measurement mode was able to measure the spatial temperature distribution. Multiple spectra were used to determine the temperature distributions in the measurement region. The spatial resolution of the multispectral pyrometer was not restricted to one “pixel” but was extended to subpixel accuracy (the temperature distribution inside one pixel in the image space corresponding to the point region in the object space). Thus, this system gives high-speed, multichannel, and long working time spatial temperature measurements with a small data stream from high-speed multispectral pyrometers. The temperature distribution of the leading edge of a ceramic wing was investigated with the leading edge exposed to extreme convective heating from a high-enthalpy plasma flow. Simultaneous measurements with a multispectral pyrometer and an imaging pyrometer verify the measurement accuracy of the subpixel temperature distribution. Thus, this multispectral pyrometry can provide in situ noninvasive temperature diagnostics in supersonic plasma jet environments.

Spatial Temperature Distribution Out of Doors

1997 ◽  
Vol 11 (14) ◽  
pp. 1743-1752
Author(s):  
D. M. Ćirić ◽  
B. S. Tošić
Keyword(s):  
Temperature Distribution ◽  
Time Dependence ◽  
Wind Velocity ◽  
Space Time ◽  
Heat Sources ◽  
Analytical Expression ◽  
Spatial Temperature Distribution ◽  
Maximum Temperatures ◽  
Spatial Temperature

The space-time dependence of temperature is analysed in the case of out of doors fire. It is assumed that the fire is caused by a series of point heat sources. The analytical expression of temperature has been found and the line of maximum temperatures, depending on the wind velocity, has been investigated.

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