Thermal model of the Piedmont Po Plain shallow aquifer (NW Italy) with the statistical temperature distribution

Geothermics ◽  
2020 ◽  
Vol 87 ◽  
pp. 101833 ◽  
Author(s):  
Diego Barbero ◽  
Arianna Bucci ◽  
Maria Gabriella Forno ◽  
Manuela Lasagna ◽  
Domenico Antonio De Luca
Keyword(s):  
Temperature Distribution ◽  
Thermal Model ◽  
Shallow Aquifer ◽  
Po Plain ◽  
Nw Italy

Laser Transmission Welding of a Lap-Joint: Thermal Imaging Observations and three–dimensional Finite Element Modeling

2007 ◽  
Vol 129 (9) ◽  
pp. 1177-1186 ◽  
Author(s):  
L. S. Mayboudi ◽  
A. M. Birk ◽  
G. Zak ◽  
P. J. Bates
Keyword(s):  
Finite Element ◽  
Temperature Distribution ◽  
Laser Beam ◽  
Thermal Imaging ◽  
Thermal Model ◽  
Three Dimensional ◽  
Welding Process ◽  
Lap Joint ◽  
Laser Transmission Welding ◽  
Joint Geometry

Laser transmission welding (LTW) is a relatively new technology for joining plastic parts. This paper presents a three-dimensional (3D) transient thermal model of LTW solved with the finite element method. A lap-joint geometry was modeled for unreinforced polyamide (PA) 6 specimens. This thermal model addressed the heating and cooling stages in a laser welding process with a stationary laser beam. This paper compares the temperature distribution of a lap-joint geometry exposed to a stationary diode laser beam, obtained from 3D thermal modeling with thermal imaging observations. It is shown that the thermal model is capable of accurately predicting the temperature distribution when laser beam scattering during transmission through the polymer is included in the model. The weld dimensions obtained from the model have been compared with the experimental data and are in good agreement.

A Multi-Dimensional Coupled Electro-Thermal Model of a LFP Battery

2012 ◽  
Vol 569 ◽  
pp. 386-390
Author(s):  
Hong Zhang Cen ◽  
Xue Zhe Wei ◽  
Hai Feng Dai ◽  
Li Song
Keyword(s):  
Temperature Distribution ◽  
Heat Generation ◽  
Thermal Model ◽  
Porous Electrode ◽  
Generation Rate ◽  
Heat Generation Rate ◽  
Battery Model ◽  
Model Based ◽  
D Model

In this article a multi-dimensional coupled electro-thermal model of a LFP battery is proposed. The model includes a 1-d model based on porous-electrode theory and a 3-d battery model solving the temperature distribution of the battery. These models are coupled through heat generation rate during discharging process. Moreover, an experiment is designed to check the inside temperature information of the battery.

scholarly journals Modelling thermal properties of large LED modules

2019 ◽  
Vol 37 (4) ◽  
pp. 628-638 ◽  
Author(s):  
Przemysław Ptak ◽  
Krzysztof Górecki ◽  
Barbara Dziurdzia
Keyword(s):  
Thermal Properties ◽  
Temperature Distribution ◽  
Power Dissipation ◽  
Thermal Model ◽  
Parameters Estimation ◽  
Internal Temperature ◽  
Practical Usefulness ◽  
Good Agreement

AbstractIn this paper a problem of modelling thermal properties of large LED modules is considered. The compact thermal model of such modules is proposed. The form of this model is presented and a method of parameters estimation is described. The practical usefulness of this model is verified experimentally by comparing the results of calculations and measurements of internal temperature of selected LEDs included in LED modules. The modules were fabricated by Fideltronic, Poland and measurements of temperature distribution on the surface of the modules at selected variants of power dissipation were performed at the Gdynia Maritime University. Good agreement between the results of measurements and modelling was obtained.

scholarly journals Hydrogeology of the western Po plain (Piedmont, NW Italy)

2020 ◽  
Vol 16 (2) ◽  
pp. 265-273 ◽  
Author(s):  
Domenico Antonio De Luca ◽  
Manuela Lasagna ◽  
Laura Debernardi
Keyword(s):  
Po Plain ◽  
Nw Italy

Thermomechanical Analytical 3D Thermal/Stress Estimation Sidewall Grinding Model

1999 ◽  
Vol 121 (3) ◽  
pp. 378-384 ◽  
Author(s):  
Ya Yun Li ◽  
Jongwon Kim ◽  
Yunquan Sun ◽  
Yanhua Yang
Keyword(s):  
Thermal Stress ◽  
Temperature Distribution ◽  
Thermal Model ◽  
Three Dimensional ◽  
Surface Grinding ◽  
Stress Model ◽  
Creep Feed ◽  
Conventional Grinding ◽  
External Cylindrical Grinding ◽  
Sidewall Surface

A general three-dimensional thermal/stress grinding model, based on thermal and elastic/plastic classical analytical solutions, has been developed in this paper. The thermal model can predict the temperature distribution of surface and cylindrical external/internal creep-feed or conventional grinding for vertical or inclined sidewall surface grinding. This paper deals with a grinding burn problem that is widespread in the aerospace and automotive industries. The thermal model is compared with sidewall surface grinding experiments. The comparison of the temperature distribution results is expected. The general stress model has been developed, which combines both spherical and cylindrical coordinates. In addition, the 3D thermal/stress model is compared with four cases of external cylindrical grinding experiments. The residual stresses agree reasonably.

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