نتایج جستجو برای: short circuit current density
تعداد نتایج: 1623811 فیلتر نتایج به سال:
We have synthesized a highly efficient organic dye for a dye-sensitized solar cell; the overall solar-to-energy conversion efficiency was 9.1% at AM 1.5 illumination (100 mW cm(-2)): short-circuit current density (J(sc)) = 18.1 mA cm(-2), open circuit photovoltage (V(oc)) = 743 mV and fill factor (ff) = 0.675.
For the thin-film solar cells embedded with nanostructures at their rear dielectric layer, the shape and location of the nanostructures are crucial for higher conversion efficiency. A novel two-level hierarchical nanostructure (a sphere evenly covered with half truncated smaller spheres) can facilitate stronger intensity and wider scattering angles due to the coexistence of the merits of the na...
سیلاب ورودی به مخزن سد حاوی مواد معلق زیاد بوده که اصطلاحاً جریان چگال (density current) نامیده می شود. این جریان در واقع جریان یک سیال درون سیال دیگر است که بوسیله اختلاف چگالی مابین آنها ایجاد می گردد. اختلاف در چگالی که باعث ایجاد نیروی رانش می گردد ممکن است ناشی از اختلاف درجه حرارت، وجود ذرات معلق جامد ویا مواد محلول باشد. در این تحقیق با توجه به آزمایشات سه بعدی انجام شده، گسترش عرضی جریان...
The effect of single and double-layer anti-reflective coatings on efficiency enhancement of silicon solar cells was investigated. The reflectance of different anti-reflection structures were calculated using the transfer matrix method and then to predict the performance of solar cells coated by these structures, the weighted average reflectance curves were used as an input of a PC1D simulation....
protection systems have vital role in network reliability in short circuit mode and proper operating for relays. current transformer often in transient and saturation under short circuit mode causes mal-operation of relays which will have undesirable effects. therefore, proper and quick identification of current transformer saturation is so important. in this paper, an artificial neural network...
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