مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

بررسی تجربی و تحلیل اگزرژی سیستم دیش سهموی خورشیدی با ردیاب اتوماتیک برای مصارف خانگی

نوع مقاله : پژوهشی اصیل

نویسندگان
1 دانشگاه یزد
2 دانشگاه آزاد واحد بافق
چکیده
در میان کلکتور­های خورشیدی، دیش­های سهموی خورشیدی به دلیل دمای کاری بالا و عملکرد حرارتی بالا توجه محققان را به خود جلب کرده­است. هدف از این مطالعه، مقایسه دو گیرنده جاذب ( معمولی – سیاه رنگ) برای دیش سهموی خورشیدی می­باشد. تجزیه و تحلیل انرژی و اگزرژی برای دوحالت مختلف در ساعات­های متفاوت بررسی شد. برای دمای خروجی در سیستم دیش سهموی خورشیدی از ردیاب اتوماتیک دو محوره استفاده شد. نتایج نشان می­دهد که حداکثر دمای جاذب­ معمولی و سیاه رنگ به ترتیب 52/101 و 53/115 درجه سانتی­گراد و حداکثر بازده انرژی و اگزرژی مربوط به صفحه جاذب مارپیچ سیاه رنگ با مقادیر 7/0 و 21/0 است. علاوه بر این، دیش سهموی خورشیدی طراحی شده دمای 80 لیتر آب را در 5 ساعت پس از تابش آفتاب به 60 درجه سانتی­گراد افزایش داد که برای حمام کردن و شستشوی لباس در فصل زمستان در مناطق دور افتاده و روستایی که کمبود برق و سوخت­های فسیلی وجود دارد؛ برای چهار تا پنج نفر کافی است.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Experimental Investigation and Exergy Analysis of Solar Parabolic Dish System with Automatic Tracking for Domestic Applications

نویسندگان English

Mohammad saleh Barghi jahromi 1
vali kalantar 1
Mohammad Hossein Dehestani Bafghi 2
1 Yazd University
2 Bafq Branch Azad University
چکیده English

Among solar collectors, solar parabolic dishes have attracted the attention of researchers due to their high working temperature and high thermal performance. The purpose of this study is to compare two absorber receivers (normal-black color) for the solar parabolic dish. The analysis of energy and exergy was investigated for different conditions at different hours. Two-axis tracking system was applied to the outlet temperature in the solar parabolic dish system. The results show that the maximum temperature of the normal and black absorber is 101.52 and 115.53 , respectively, and the maximum energy and exergy efficiency of the black spiral absorber plate is 0.7 and 0.21. In addition, the designed parabolic solar container raised the temperature of 80 liters of water to 60 in 5 hours after sunlight, which is suitable for bathing and washing clothes in winter in backward and rural areas without electricity and fuel. Therefore, it is enough for four to five people.

کلیدواژه‌ها English

Solar Energy
solar parabolic dish
thermal efficiency
two-axis automatic tracker
Exergy efficiency
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