دانلود مقاله ISI انگلیسی شماره 153920
ترجمه فارسی عنوان مقاله

تجزیه و تحلیل نوری و ترمودینامیکی ترکیبی از یک سیستم انتقال قدرت بی سیم جدید با استفاده از نور خورشید متمرکز برای کاربردهای فضایی

عنوان انگلیسی
Coupled optic-thermodynamic analysis of a novel wireless power transfer system using concentrated sunlight for space applications
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
153920 2017 10 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Applied Thermal Engineering, Volume 115, 25 March 2017, Pages 1079-1088

پیش نمایش مقاله
پیش نمایش مقاله  تجزیه و تحلیل نوری و ترمودینامیکی ترکیبی از یک سیستم انتقال قدرت بی سیم جدید با استفاده از نور خورشید متمرکز برای کاربردهای فضایی

چکیده انگلیسی

The energy generation and supply for in-orbit spacecraft have become an urgent problem concerning efficient and economical utilization of spacecraft formation flying. To fill the gap between the requirement of inter-spacecraft energy transfer and the development of wireless power transfer, this paper presents a novel wireless power transfer system whose transmission medium is concentrated sunlight. The system concentrates sunlight using a Fresnel lens, and changes the direction of concentrated sunlight beam with optical fibers. The light energy is converted to thermal form by a heat collector, and then it is utilized to generate electricity by a Stirling engine integrated with linear alternator. Equipments employed on fractionated spacecraft shall be supported by this electric energy. A coupled optic-thermodynamic model was developed to analyze system link efficiencies. This system offers characteristics such as high flexibility, relatively low cost for launch and maintenance, and most importantly, high end-to-end efficiency. Simulation results show that the geometric concentration ratio and the temperature ratio of expansion and compression spaces are two key parameters of this system. Output power of 234.3 W was achieved on the distance of 100 m, and the end-to-end efficiency of the system was above 20%.