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Thermal contact information


In heat transfer and thermodynamics, a thermodynamic system is said to be in thermal contact with another system if it can exchange energy through the process of heat. Perfect thermal isolation is an idealization as real systems are always in thermal contact with their environment to some extent.

When two solid bodies are in contact, a resistance to heat transfer exists between the bodies. The study of heat conduction between such bodies is called thermal contact conductance (or thermal contact resistance).

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Thermal contact

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system is said to be in thermal contact with another system if it can exchange energy through the process of heat. Perfect thermal isolation is an idealization...

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Thermal contact conductance

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physics, thermal contact conductance is the study of heat conduction between solid or liquid bodies in thermal contact. The thermal contact conductance...

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Thermal conduction

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in contact. This phenomenon is said to be a result of a thermal contact resistance existing between the contacting surfaces. Interfacial thermal resistance...

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Perfect thermal contact

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Perfect thermal contact of the surface of a solid with the environment (convective heat transfer) or another solid occurs when the temperatures of the...

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Thermal insulation

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of differing temperature) between objects in thermal contact or in range of radiative influence. Thermal insulation can be achieved with specially engineered...

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Thermal equilibrium

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are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium...

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Thermal transmittance

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test in order to ensure good thermal contact. When the heat flux is monitored over a sufficiently long time, the thermal transmittance can be calculated...

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Heat sink

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attributed to what is known as the thermal contact resistance. Thermal interface materials (TIM) decrease the thermal contact resistance. As power dissipation...

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Thermal paste

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Thermal paste (also called thermal compound, thermal grease, thermal interface material (TIM), thermal gel, heat paste, heat sink compound, heat sink paste...

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Thermodynamic equilibrium

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distinction between 'thermal equilibrium' and 'thermodynamic equilibrium' is made by B. C. Eu. He considers two systems in thermal contact, one a thermometer...

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Contact binary

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are in geometric contact but the thermal contact is poor, there can exist wide differences between their respective temperatures. Contact binaries are not...

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Metamorphism

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Earth's surface. Various forms of metamorphism exist, including regional, contact, hydrothermal, shock, and dynamic metamorphism. These differ in the characteristic...

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Thermal effusivity

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thermodynamics, a material's thermal effusivity, also known as thermal responsivity, is a measure of its ability to exchange thermal energy with its surroundings...

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Thermally conductive pad

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copper). Thermal pads and thermal compound are used to fill air gaps caused by imperfectly flat or smooth surfaces which should be in thermal contact; they...

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Heat transfer

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a solid or between solid objects in thermal contact. Fluids—especially gases—are less conductive. Thermal contact conductance is the study of heat conduction...

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Thermal conductivity and resistivity

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Thermal bridge Thermal conductance quantum Thermal contact conductance Thermal diffusivity Thermal effusivity Thermal entrance length Thermal interface material...

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Computer cooling

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transfer due to poor thermal contact between components to be cooled and cooling devices. This can be improved by the use of thermal compounds to even out...

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Thermal analysis

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atmosphere, gas flow rate, vapor pressure of the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.). The information...

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Normal contact stiffness

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interactions of multiple bodies including granular matter, electrode contacts, and thermal contacts, where the interface-localized structures govern overall system...

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Power module

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substrate that carries the power semiconductors, provides electrical and thermal contact and electrical insulation where needed. Compared to discrete power...

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Temperature

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own one-to-one map into the hotness manifold. When two systems in thermal contact are at the same temperature no heat transfers between them. When a...

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Thermography

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Infrared thermography (IRT), thermal video and/or thermal imaging, is a process where a thermal camera captures and creates an image of an object by using...

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Contactor

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banks, thermal evaporators, and other electrical loads. A contactor has three components: The contacts are the current-carrying part of the contactor. This...

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Thermal conductance

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For Thermal conductance see: Thermal contact conductance Thermal conduction Thermal conductivity List of thermal conductivities Thermal conductance and...

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Infrared thermometer

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thermometer is a thermometer which infers temperature from a portion of the thermal radiation sometimes called black-body radiation emitted by the object being...

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Cryostat

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them to a metallic cold plate inside a vacuum chamber which is in thermal contact with the helium vapour chamber. Continuous-flow cryostats are cooled...

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Pyrometer

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in thermal contact with the object; most other thermometers (e.g. thermocouples and resistance temperature detectors (RTDs)) are placed in thermal contact...

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Thermal ionization

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Thermal ionization, also known as surface ionization or contact ionization, is a physical process whereby the atoms are desorbed from a hot surface, and...

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Ice cream

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freezing point of pure water. The immersed container can also make better thermal contact with the salty water and ice mixture than it could with ice alone....

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