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  2. Heat transfer - Wikipedia

    en.wikipedia.org/wiki/Heat_transfer

    Heat transfer is a discipline of thermal engineering that concerns the generation, use, conversion, and exchange of thermal energy 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.

  3. Interfacial thermal resistance - Wikipedia

    en.wikipedia.org/wiki/Interfacial_thermal_resistance

    The first major model for heat transfer at interfaces was the acoustic mismatch model which predicted a T −3 temperature dependence on the interfacial resistance, but this failed to properly model the thermal conductance of helium interfaces by as much as two orders of magnitude.

  4. Thermal contact conductance - Wikipedia

    en.wikipedia.org/wiki/Thermal_contact_conductance

    Thermal contact resistance is significant and may dominate for good heat conductors such as metals but can be neglected for poor heat conductors such as insulators. [2] Thermal contact conductance is an important factor in a variety of applications, largely because many physical systems contain a mechanical combination of two materials.

  5. Heat transfer physics - Wikipedia

    en.wikipedia.org/wiki/Heat_transfer_physics

    The macroscopic energy equation for infinitesimal volume used in heat transfer analysis is [6] = +, ˙, where q is heat flux vector, −ρc p (∂T/∂t) is temporal change of internal energy (ρ is density, c p is specific heat capacity at constant pressure, T is temperature and t is time), and ˙ is the energy conversion to and from thermal ...

  6. Thermal effusivity - Wikipedia

    en.wikipedia.org/wiki/Thermal_effusivity

    Thermal effusivity is a good approximation for the material's thermal inertia for a semi-infinite rigid body where heat transfer is dominated by the diffusive process of conduction only. Thermal effusivity is a parameter that emerges upon applying solutions of the heat equation to heat flow through a thin surface-like region. [ 3 ]

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  8. Thermic fluid heater - Wikipedia

    en.wikipedia.org/wiki/Thermic_fluid_heater

    The basic working principle of a thermic fluid heater is indirect heating. It uses a heating medium, typically a thermic fluid or heat transfer oil, which circulates through a closed-loop system. The thermic fluid absorbs heat generated by the combustion of fuel and then transfers this heat to the required processes or equipment via heat ...

  9. Heisler chart - Wikipedia

    en.wikipedia.org/wiki/Heisler_Chart

    The third chart in each set was supplemented by Gröber in 1961, and this particular one shows the dimensionless heat transferred from the wall as a function of a dimensionless time variable. The vertical axis is a plot of Q/Q o, the ratio of actual heat transfer to the amount of total possible heat transfer before T = T ∞.

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