مهندسی مکانیک مدرس

مهندسی مکانیک مدرس

ارزیابی تولید بخار خورشیدی تحت جریان همرفتی در ساختار استوانه‌ای با توزیع آب الهام گرفته شده از طبیعت

نوع مقاله : پژوهشی اصیل

نویسندگان
1 دانشگاه تربیت مدرس
2 دانشگاه تربیت مدرس، تهران
3 دانشگاه نینگبو، چین
چکیده
استفاده از سیستم‌های تبخیر خورشیدی سطحی می‌تواند روشی مناسب برای مقابله با مشکل کمبود آب شیرین در جهان باشد. سیستم‌های تبخیر خورشیدی سطحی به دلیل استفاده از انرژی خورشیدی به عنوان یک منبع انرژی فاقد هزینه و بدون اثرات زیست محیطی و همچنین به دلیل عاری بودن از عملیات فشار بالا و عدم نیاز به قطعات متحرک می‌توانند به طور گسترده در تولید آب شیرین استفاده شوند. اما برای استفاده از سیستم تبخیر خورشیدی سطحی برای کاربرد عملی، نرخ تبخیر با راندمان بالا مورد نیاز است. لذا در این تحقیق با استفاده از شبیه‌سازی عددی عملکرد یک سیستم تبخیر خورشیدی سطحی استوانه‌ای شکل توخالی با مکانیزم انتقال آب الهام گرفته شده از طبیعت به منظور تولید بخار مورد ارزیابی قرار گرفته است. این سیستم می‌تواند به طور موثرتری تابش خورشید را جذب نماید. در این پژوهش به منظور بررسی دقیق عملکرد سیستم تبخیر خورشیدی سطحی معرفی شده نرخ تولید بخار و بازده سیستم با تغییر عوامل محیطی ارزیابی شده است. همچنین به منظور بررسی عملکرد این سیستم تحت زوایای مختلف تابش خورشیدی در شرایط واقعی، میزان تولید بخار در دو روز انقلاب تابستانی و انقلاب زمستانی در شهر تهران مورد بررسی قرار گرفته است. نتایج این تحقیق نشان می‌دهد سامانه تبخیر خورشیدی سطحی استوانه‌ای می‌تواند نرخ تولید بخار3/09 کیلوگرم بر مترمربع-ساعت و 9/09 کیلوگرم بر مترمربع-ساعت را به ترتیب در روزهای انقلاب زمستانی و انقلاب تابستانی در شهر تهران همراه با جریان باد داشته باشد.
کلیدواژه‌ها

موضوعات


عنوان مقاله English

Evaluation of solar steam generation under convective flow in a cylindrical structure with nature inspired water distribution

نویسندگان English

Omid Haghani 1
Mohammad Mahdi Heyhat 2
omid Mahian 3
1 Tarbiat Modares University
2 Tarbiat Modares University
3 Faculty of Mechanical Engineering, Ningbo University, China
چکیده English

The use of interfacial solar evaporation systems can be a suitable method to deal with the problem of fresh water shortage in the world. Interfacial solar evaporation systems can be widely used in the production of fresh water due to the use of solar energy as a without any costs energy and no environmental effects and also free from high pressure operations and no need for moving parts. But in order to use interfacial solar evaporation system for practical application, evaporation rate with high efficiency is required. In this research, the performance of a hollow cylindrical interfacial solar evaporation system with nature inspired water distribution to steam generation has been evaluated by numerical simulation. This system can absorb solar radiation more effectively. In this study, in order to accurately investigate the performance of the interfacial solar evaporation systems, steam generation and system efficiency were evaluated by changing environmental factors. Also, in order to investigate the performance of the interfacial solar evaporation systems under different angles of solar radiation in real world conditions, the rate of steam generation in two days of summer solstice and winter solstice in Tehran city has been evaluated. The results of this research show that the cylindrical interfacial solar evaporation system can have a steam generation rate of 3.09 kg/m2.h and 9.09 kg/m2.h in winter solstice and summer solstice respectively in Tehran city with wind flow

کلیدواژه‌ها English

Interfacial Solar Evaporation
Nature Inspired
Environmental Energy
simulation
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