Results 321 to 330 of about 5,768,925 (396)
Some of the next articles are maybe not open access.
On the Calculation of Efficiencies and Costs in Thermal Systems
Advanced Energy Systems, 1999Abstract This paper is an extension, generalization and simplification of a concept presented in two previous papers. A general method for defining and calculating exergetic efficiencies and exergy-related costs in thermal systems is presented.
LAZZARETTO, ANDREA, G. TSATSARONIS
openaire +2 more sources
CALCULATION OF THERMAL RESISTANCE AT THE BOUNDARY
Mathematical modeling in materials science of electronic component, 2023This paper presents the result of calculating the thermal resistance (Kapitza resistance) for the Si/SiO2(α-quartz) interface using acoustic and diffuse misfit models. The results obtained were verified using data from published articles, which made it possible to generally judge the adequacy of the models used.
Karine Abgaryan, Ilya Kolbin
openaire +1 more source
Correlation Function Calculation of Thermal Conductivity
Physical Review, 1962Recent theories of transport in fluids express the thermal conductivity in terms of correlation functions of the thermal flux. It is shown that such an expression for the thermal conductivity reduces to that conventionally obtained by use of the Boltzmann transport equation for phonon scattering in crystals, if the rate of change of phonon occupation ...
Schieve, William C., Peterson, Robert L.
openaire +1 more source
Calculations of the thermal boundary resistance
Physical Review B, 1977A comparison is made of two versions of the acoustic-mismatch theory of the thermal boundary resistance R which occurs at the interface between a pair of solids. The most recent version predicts R ..-->.. 0 as the two solids become identical, while the earlier version indicates a finite R as the interface essentially vanishes.
J. A. Katerberg +2 more
openaire +1 more source
2010
Model calculations are made to obtain for certain load cases information on the thermal behavior of a telescope, or a telescope and its enclosure or of a specific structural component. The temperatures predicted from model calculations are used for design and/or operational purposes.
Albert Greve, Michael Bremer
openaire +1 more source
Model calculations are made to obtain for certain load cases information on the thermal behavior of a telescope, or a telescope and its enclosure or of a specific structural component. The temperatures predicted from model calculations are used for design and/or operational purposes.
Albert Greve, Michael Bremer
openaire +1 more source
Communications in Applied Numerical Methods, 1986
AbstractLeast squares smoothing is applied to thermal strain calculation. The smoothing procedure eliminates apparent errors in thermal stresses due to mismatch of thermal and mechanical strain orders which facilitates direct evaluation of results. General procedures are developed and demonstrated for two‐dimensional isoparametric elements.
openaire +1 more source
AbstractLeast squares smoothing is applied to thermal strain calculation. The smoothing procedure eliminates apparent errors in thermal stresses due to mismatch of thermal and mechanical strain orders which facilitates direct evaluation of results. General procedures are developed and demonstrated for two‐dimensional isoparametric elements.
openaire +1 more source
Thermal Calculations for Bridge Design
Journal of the Structural Division, 1975A straightforward method is shown for calculating thermal stresses in bridges. Unsteady temperature distributions are obtained from numerical solutions of the one-dimensional unsteady heat equation, and comparison with experiment seems to validate the simplifying assumption that horizontal heat movements are small enough to be ignored.
Bruce Hunt, Nigel Cooke
openaire +1 more source
Theoretical Calculation of Thermal Transmittance
Applied Mechanics and Materials, 2016The article is focused on the theoretical calculation of thermal transmittance for new plastic window frame. Constant making the thermos-technical requirements stricter lays higher demands on improvement of window frames which the weakest element from the point of heat engineering.
Adela Palková, Milan Palko
openaire +1 more source
Calculation methods for thermal analysis
Polymer Science U.S.S.R., 1983Abstract A description is given of a method of analysing experimental results obtained in thermal degradation of polymers. The method is based on the continuous weighing of the sample with linear increase of temperature. Methods of calibration of the device are described.
M.V. Razmerova +3 more
openaire +1 more source
Power Loss and Thermal Analysis for High-Power High-Speed Permanent Magnet Machines
IEEE transactions on industrial electronics (1982. Print), 2020For high-speed permanent magnet machines (HSPMMs), the permanent magnet (PM) is more likely to suffer irreversible demagnetization because the heat dissipation is serious in the HSPMMs, especially for the high-power machines.
Guanghui Du +3 more
semanticscholar +1 more source