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Surface power density : ウィキペディア英語版 | Surface power density In physics and engineering, surface power density or sometimes simply specific power〔()〕 is power per unit area. ==Applications==
* The intensity of electromagnetic radiation can be expressed in W/m2. An example of such a quantity is the solar constant. * Wind turbines are often compared using a specific power measuring watts per square meter of turbine disk area, which is , where ''r'' is the length of a blade. This measure is also commonly used for solar panels, at least for typical applications. * Radiance is surface power density per unit of solid angle (steradians) in a specific direction. Spectral radiance is radiance per unit of frequency (Hertz) at a specific frequency.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Surface power density」の詳細全文を読む
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