Determination of the temperature field of a metal barrier in collision with an erodent particle

1999 ◽  
Vol 72 (3) ◽  
pp. 503-510
Author(s):  
L. I. Urbanovich ◽  
E. M. Kramchenkov
Keyword(s):  
Temperature Field ◽  
Erodent Particle ◽  
Metal Barrier

Determination of the profile of the temperature field of material heated by continuous laser radiation

2020 ◽  
pp. 51-10
Author(s):  
B.A. Lapshinov ◽  
◽  
N.I. Timchenko ◽  
Keyword(s):  
Temperature Field ◽  
Optical Fiber ◽  
Prolonged Exposure ◽  
Radiation Spectrum ◽  
Visible Range ◽  
Continuous Laser ◽  
Surface Temperature Distribution ◽  
Continuous Radiation ◽  
Spectral Pyrometry

Spectral pyrometry was used to determine the surface temperature distribution of Si, Nb, Cu, and graphite samples when they were locally heated by continuous radiation of an Nd:YAG laser (λ = 1.064 μm). With prolonged exposure to radiation, a stationary temperature field was established in the samples. The thermal spectra were recorded with a small spectrometer in the visible range in the temperature range above 850 K. The optical fiber used to transmit the radiation spectrum to the spectrometer had an additional diaphragm with a diameter of 1 mm located at a certain distance from the fiber end, which ensured the locality of the recorded spectra. The optical fiber moved continuously along the sample, and the spectrometer recorded up to 100 spectra with a frequency of 5-10 Hz. The temperature profile of the samples was calculated based on the results of processing the spectra using the Spectral Pyrometry program.

Determination of the temperature field of a wedge during heating and cooling

1973 ◽  
Vol 24 (1) ◽  
pp. 112-115
Author(s):  
V. A. Ostaf'ev ◽  
A. A. Chernyavskaya
Keyword(s):  
Temperature Field ◽  
Heating And Cooling

scholarly journals Analytical and experimental determination of the temperature field on the surface of wall heating panels

2015 ◽  
Vol 19 (2) ◽  
pp. 497-507
Author(s):  
Ruzica Todorovic ◽  
Milos Banjac ◽  
Bogosav Vasiljevic
Keyword(s):  
Temperature Field ◽  
Experimental Determination ◽  
Wall Heating

scholarly journals Temperature Gradient Measurements in Hydrothermal Areas of Georgia

2018 ◽  
Vol 1 (1) ◽  
pp. 14-17
Author(s):  
Andreas Weller ◽  
Sepehr Sangin ◽  
Günter Buntebarth ◽  
George Melikadze
Keyword(s):  
Temperature Field ◽  
Fluid Flows ◽  
Temperature Measurements ◽  
Resolving Power ◽  
The Caucasus ◽  
Caucasus Region ◽  
Different Depths ◽  
Subsurface Fluid ◽  
Gradient Measurements

The project uses results of temperature measurements in shallow boreholes to determine the geothermal gradients for a selected set of wells in Georgia. The hydrothermal flow in the Caucasus region driven by ongoing tectonic activities causes a varying temperature field that impedes determination of stable temperature gradients. Conventional temperature logging provides only a snapshot of the temperature distribution in a well. Therefore, the methodology adopted in this study is based on continuous stationary measurements with up to eight temperature sensors fixed at different depths in the wells. Temperature measurements have been performed in 14 wells using thermometers with resolving power of 0.01 K. The temperature field was recorded during periods ranging from 16 hours to 4 days. This practice of measurements enabled detection of thermal effects of fluid flows within the selected set of boreholes. Considering the 14 wells that were selected for this study, eight showed signs of stability in temperature increase versus depth and the remaining seven wells revealed signs of instability due subsurface fluid flows.

scholarly journals Thermal conditions for geothermal energy exploitation in the Transcarpathian depression and surrounding units

2016 ◽  
Vol 46 (1) ◽  
pp. 33-49 ◽  
Author(s):  
Dušan Majcin ◽  
Roman Kutas ◽  
Dušan Bilčík ◽  
Vladimír Bezák ◽  
Ignat Korchagin
Keyword(s):  
Temperature Field ◽  
Heat Flow ◽  
Field Distribution ◽  
Geothermal Energy ◽  
Thermal Conditions ◽  
Flow Density ◽  
Heat Flow Density ◽  
Temperature Field Distribution ◽  
Energy Exploitation

Abstract The contribution presents the results acquired both by direct cognitive geothermic methods and by modelling approaches of the lithosphere thermal state in the region of the Transcarpathian depression and surrounding units. The activities were aimed at the determination of the temperature field distribution and heat flow density distribution in the upper parts of the Earth’s crust within the studied area. Primary new terrestrial heat flow density map was constructed from values determined for boreholes, from their interpretations and from newest outcomes of geothermal modelling methods based on steady-state and transient approaches, and also from other recently gained geophysical and geological knowledge. Thereafter we constructed the maps of temperature field distribution for selected depth levels of up to 5000 m below the surface. For the construction we have used measured borehole temperature data, the interpolation and extrapolation methods, and the modelling results of the refraction effects and of the influences of source type anomalies. New maps and other geothermic data served for the determination of depths with rock temperatures suitable for energy utilization namely production of electric energy minimally by the binary cycles. Consequently the thermal conditions were used to identify the most perspective areas for geothermal energy exploitation in the region under study.

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