scholarly journals The Analysis of Properties of Thermal Sensitive Elements in Measuring Devices for Thermal Properties of Materials

2021 ◽  
Vol 27 (3) ◽  
pp. 461-467
Author(s):  
A. D. Loskutova ◽  
A. P. Korolev
Keyword(s):  
Thermal Properties ◽  
Thermophysical Properties ◽  
Infrared Radiation ◽  
Measuring Devices ◽  
Thermal Properties Of Materials ◽  
Properties Of Materials ◽  
Output Characteristics

The analysis of properties of thermosensitive elements used in devices for monitoring the temperature and thermophysical properties of the medium and materials is carried out. Thermal converters made of various materials are considered: metals, semiconductors, oxides. The sensitivity to infrared radiation of the considered elements is analyzed. The range of measured temperatures and the linearity of the output characteristics of the converters are investigated. A conclusion is made about the purposefulness of using one or another type of thermosensitive elements.

scholarly journals Operating at High TemperaturesContribution to the Magneto-Thermal Modeling of SRM Operating at High Temperatures

2021 ◽  
Vol 23 (2) ◽  
pp. 143-147
Author(s):  
Karim Alitouche ◽  
Hocine Menana ◽  
Jihane Khalfi ◽  
Noureddine Takorabet ◽  
Rachid Saou
Keyword(s):  
Thermal Properties ◽  
High Temperatures ◽  
Thermal Modeling ◽  
Electrical Machines ◽  
Switched Reluctance ◽  
Thermal Properties Of Materials ◽  
Properties Of Materials ◽  
Modeling Strategy

In this paper, we present a simplified magneto-thermal modeling strategy for switched reluctance electrical machines (SRM) operating at high temperatures. In addition to the magnetic non-linearity, the variations of the electromagnetic and thermal properties of materials with the temperature are taken also into account. The rapidity of the proposed approach makes it compatible with a CAD approach.

Variation of the Thermal Properties During Friction Under Shock Conditions

2012 ◽  
Author(s):  
G. Peillex ◽  
P. Le Tallec ◽  
F. Dambakizi
Keyword(s):  
Heat Flux ◽  
Thermal Properties ◽  
Heat Equation ◽  
Tribological Behavior ◽  
Melt Temperature ◽  
Linear Heat Equation ◽  
Linear Heat ◽  
First Results ◽  
Thermal Properties Of Materials ◽  
Properties Of Materials

During friction under shock conditions, interface is submitted to very strong heat flux. Thus, it may reach a temperature as high as melt temperature of one of the materials constituting the contact. As a consequence, the income and outcome of heat at the interface governs the friction and the contact behavior. This article exposes a model that resolves the non-linear heat equation in the vicinity of the interface. This way, it takes into account the variations of thermal properties of materials constituting the interface. First results indicate that such variations influence the tribological behavior of the contact.

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