How is ‘thermal conductivity’ defined in power engineering materials?

Thermal conductivity is defined as the ability of a material to conduct heat. This property quantifies how well heat is transferred through a material as a result of a temperature difference. In the context of power engineering, understanding thermal conductivity is crucial because it affects how heat moves through various components such as pipes, boilers, heat exchangers, and insulation materials.

Materials with high thermal conductivity, such as metals, allow heat to flow easily, making them suitable for applications where efficient heat transfer is necessary. Conversely, materials with low thermal conductivity, like insulating materials, resist heat flow, which is important for reducing energy loss and enhancing system efficiency. This fundamental understanding of thermal conductivity enables engineers to select the appropriate materials for specific applications to maximize thermal performance and safety.