Thermal conductivity varies greatly depending on the material. Q = Amount of Heat Transferred (W) or (Btu)ĭ = Distance Between the Two Isothermal Planes (m) or (ft) K = Thermal Conductivity (W/(mK)) or (Btu/(hrft*☏)) Thermal conductivity is represented mathematically below: The more heat is applied, the more vibration and energy transfer occurs. This vibration causes molecules to bump into other particles and transfer energy to them. When a material is heated, particles will gain energy and vibrate more. Materials with a simple molecular structure typically will have a higher thermal conductivity. In the simplest terms, thermal conductivity is a measure of how efficiently heat flows through a given material. Carbon fiber can be utilized in novel applications due to its unique thermal properties. Selecting a material with the proper thermal conductivity can improve efficiency and performance. In any heat transfer application, thermal conductivity and the coefficient of thermal expansion should be carefully considered, especially in applications where these properties affect performance and longevity. Two thermal properties that could play an important role in material selection are thermal conductivity and the coefficient of thermal expansion. Properly analyzing all material properties, while putting them into the context of the end product or application, is an extremely difficult task. ![]() When designing a new product or application, engineers have multiple options for materials.
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