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This in turn increases the heat-sink base temperature. And additionally, the thermal resistance of the heat sink will also increase. The net result is a higher heat-sink base temperature. The increase in heat-sink thermal resistance with decrease in flow rate will be shown later in this article.
One-piece finned heat sinks are produced by extrusion ... as assuming the temperature throughout the fin is at the base temperature would increase the heat transfer ...
Most of the non-condensable gas is located in the reservoir, while the remainder blocks a portion of the heat pipe condenser. The variable conductance heat pipe works by varying the active length of the condenser. When the power or heat sink temperature is increased, the heat pipe vapor temperature and pressure increase.
Thermodynamic heat pump cycles or refrigeration cycles are the conceptual and mathematical models for heat pump, air conditioning and refrigeration systems. [1] A heat pump is a mechanical system that transmits heat from one location (the "source") at a certain temperature to another location (the "sink" or "heat sink") at a higher temperature. [2]
Heat sinks function by efficiently transferring thermal energy ("heat") from an object at high temperature to a second object at a lower temperature with a much greater heat capacity. This rapid transfer of thermal energy quickly brings the first object into thermal equilibrium with the second, lowering the temperature of the first object ...
Everybody seems to be missing the primary purpose of the heat sink, which is to increase the heat mass of the system and thereby slow down temperature rise time. So the ideal material has a high heat capacity first, and high thermal conductivity second. For metals, these properties are related, for other materials, they are independent.
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As a conceptual simplification, it effectively functions as an infinite pool of thermal energy at a given, constant temperature. Since it can act as an inertial source and sink of heat, it is often also referred to as a heat reservoir or heat bath. Lakes, oceans and rivers often serve as thermal reservoirs in geophysical processes, such as the ...
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