thermal equilibrium


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thermal equilibrium

[′thər·məl ‚ē·kwə′lib·rē·əm]
(thermodynamics)
Property of a system all parts of which have attained a uniform temperature which is the same as that of the system's surroundings.
References in periodicals archive ?
The most important example is the perfectly reflecting cavity, wherein thermal equilibrium is governed by the conduction of energy in the walls, not within a radiation field.
Also, thermal equilibrium condition was satisfied under certain conditions on constant parameters.
These equilibrium computation results validate the conclusions of Calcote and King, namely, that for a laboratory flame, thermal equilibrium does not exist between species in the flame front and that ions are produced not by thermal process but by chemi-ionization.
Class review of black-body radiation and thermal equilibrium.
The verified numerical models were used to improve the geometry of the CFDs in order to create more thermal equilibrium. The improved geometry was incorporated into the numerical models which resulted in almost no degradation of the slippage load and stable hysteretic loops.
Using a numerical solution for thermal equilibrium model in the unsteady-state condition, the thermal conductivity of concrete for the RC column was determined in quadratic form as k(T) = 0.0115{[(r/120).sup.2] - 20(1/120) + 200} in W/(mK) for the temperature range from 20 [degrees]C to 1200 [degrees]C.
From 1966 to 1968, Peter Landsberg published a series of papers in Nature and raised a new related issue: he suggested that when the heat source moves transversely relative to the observer, the temperature change would not involve Doppler's effect, which can be determined only by considering how high-speed mobile objects reach thermal equilibrium. Should the relative velocities of the particles in different coordinate systems be offset relative to each other, the temperature would not change.
The implications of these observations are that the dosimeters are not in thermal equilibrium with their environment and it suggests that the internal temperature of the polystyrene phantom is higher than its immediate environment.
A thermal equilibrium is established between the cooling water entering the bottom and the heat entering the top.
Such state-of-the-art practices allow Fujitsu Asia to take steps (such as adjusting the electrical loads for individual racks) for maintaining thermal equilibrium within the DC.
After thermal equilibrium was reached, the expansion of the material was conducted vice versa and again the temperature change was measured.
Vapor phase also offers processing advantages with large mass connectors because the thermal equilibrium is superior.

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