Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy and heat between physical systems. Heat transfer is classified into various mechanisms, such as thermal conduction, thermal convection, thermal radiation, and transfer of energy by phase changes. Engineers also consider the transfer of mass of differing chemical species, either cold or hot, to achieve heat transfer. While these mechanisms have distinct characteristics, they often occur simultaneously in the same system.
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Some articles on heat transfer:
... A heat pipe is a passive device constructed in such a way that it acts as though it has extremely high thermal conductivity ... Heat pipes use latent heat and capillary action to move heat, and can carry many times as much heat as a similar-sized copper rod ... temperature sensor for measurement and control, and can also be used to convert heat into electric power ...
... when properly configured electrically and thermally, provides active thermoelectric heat transfer from one side of the bump to the other side ... The direction of heat transfer is dictated by the doping type of the thermoelectric material (either a P-type or N-type semiconductor) and the direction of electrical current passing ... This type of thermoelectric heat transfer is known as the Peltier effect ...
... R-value is the term given to thermal resistance to heat flow ... Foam Insulation blocks all 3 forms of heat transfer ... Conductive Heat Transfer The flow of thermal energy through a substance from a higher to a lower temperature region ...
... The SADT is the point at which the heat evolution from the decomposition reaction and the heat removal rate from the package of interest become unbalanced ... When the heat removal is too low, the temperature in the package increases and the rate of decomposition increases in an uncontrollable manner ... decomposition is sufficient to generate heat at a faster rate than it can be dissipated to the environment ...
... incompressible or expandable flows with or without heat transfer and turbulence (mixing length, 2-equation models, v2f, Reynolds stress models, Large eddy ... Dedicated modules are available for specific physics such as radiative heat transfer, combustion (gas, coal, heavy fuel oil, …), magneto-hydro dynamics, compressible flows, two-phase flows ... Code_Saturne can be coupled to thermal software SYRTHES for conjugate heat transfer ...
Famous quotes containing the words transfer and/or heat:
“I have proceeded ... to prevent the lapse from ... the point of blending between wakefulness and sleep.... Not ... that I can render the point more than a pointbut that I can startle myself ... into wakefulnessand thus transfer the point ... into the realm of Memoryconvey its impressions,... to a situation where ... I can survey them with the eye of analysis.”
—Edgar Allan Poe (18091849)
“When the heat of the summer
Made drowsy the land,
A dragon-fly came
And sat on my hand;”
—Eleanor Farjeon (18811965)