A heat spreader is most often simply a copper plate, having high thermal conductivity. In Physics, thermal conductivity, k is the property of a material that indicates its ability to conduct Heat. Functionally, it is a primary heat exchanger that moves heat between a heat source and a secondary heat exchanger. A heat exchanger is a device built for efficient Heat transfer from one medium to another whether the media are separated by a solid wall so that they never mix or the media In Physics, heat, symbolized by Q, is Energy transferred from one body or system to another due to a difference in Temperature The secondary heat exchanger is always larger in cross sectional area, surface area and volume. By definition, the heat is "spread out", such that the secondary heat exchanger has a larger cross sectional area contacting the heat spreader than the heat source. Area is a Quantity expressing the two- Dimensional size of a defined part of a Surface, typically a region bounded by a closed Curve. The heat flow is the same in both heat exchangers, but the heat flux density is less in the secondary, so it can be made of a less expensive material such as aluminum, and is a better match to an air heat exchanger, since the low heat transfer coefficient for air convection implies a low heat flux. WikipediaNaming Temperature and layers The temperature of the Earth's atmosphere varies with altitude the mathematical relationship between temperature and altitude varies among five A heat spreader is generally used if an only if the heat source has a rather high heat-flux density, (high heat flow per unit area), and for whatever reason, can not be conducted away effectively by the secondary heat exchanger. In the various subfields of Physics, there exist two common usages of the term flux, both with rigorous mathematical frameworks For instance this may be because it is an air-cooled type, instead of liquid-cooled, since the liquid type has as a higher heat transfer coefficient, and this is often sufficient to avoid the need for a heat spreader.
The use of a heat spreader is an important part of an economically optimal design for transferring high from high heat flux to low heat flux. Examples:
- A copper-clad bottom on a stove-top cooking container made of steel or stainless steel
- Air-cooling a CPU computer microprocessor
- Air-cooling a photovoltaic cell in a concentrated photovoltaics system
This article about an engineering topic is a stub. Steel is an Alloy consisting mostly of Iron, with a Carbon content between 0 In Metallurgy, stainless steel is defined as a Steel Alloy with a minimum of 11 A computer is a Machine that manipulates data according to a list of instructions. A microprocessor incorporates most or all of the functions of a Central processing unit (CPU on a single Integrated Engineering is the Discipline and Profession of applying technical and scientific Knowledge and You can help Wikipedia by expanding it. Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic