دانلود مقاله ISI انگلیسی شماره 53433
عنوان فارسی مقاله

آزمون کارایی یک سیستم تبدیل انرژی خورشیدی میکرو فرسنل / استرلینگ

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
53433 2013 6 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Performance testing of a Fresnel/Stirling micro solar energy conversion system
منبع

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

Journal : Energy Conversion and Management, Volume 75, November 2013, Pages 629–634

کلمات کلیدی
موتور استرلینگ؛ انرژی خورشیدی؛ لنز فرسنل؛ حفره؛ عملکرد
پیش نمایش مقاله
پیش نمایش مقاله آزمون کارایی یک سیستم تبدیل انرژی خورشیدی میکرو فرسنل / استرلینگ

چکیده انگلیسی

In this study, a beta-type Stirling engine was tested with concentrated solar radiation. The displacer cylinder of the engine was modified by integrating a concentrated solar radiation receiver. Basically, the receiver is a cavity drilled in a separate part mounted on top of the displacer cylinder by screws. Tests were conducted with three cavities made of aluminium, copper and stainless steel. The solar radiation was concentrated by a Fresnel lens with 1.4 m2 capture area. Among the cavities, the highest performance was provided by aluminium cavity and followed by the stainless steel and copper cavities respectively. The maximum shaft power was observed as 64.4 W at systematic tests conducted with the aluminium cavity. The maximum shaft power corresponded to 218 rpm engine speed and 2.82 Nm torque. For this shaft power, the overall conversion efficiency of the system was estimated to be 5.64%. The maximum torque measured with aluminium cavity was 2.93 Nm corresponding to 177 rpm below which the engine stopped. The Fresnel-lens/Stirling-engine micro power plant established in this investigation was more efficient than the micro power plants presented in the literature.

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