بررسی مواد تغییرفاز دهنده بر عملکرد آب شیرین کن های خورشیدی

نوع مقاله: مقاله علمی ترویجی

نویسندگان

1 دانشکده مهندسی مکانیک، دانشگاه صنعتی جندی‌شاپور دزفول

2 دانشگاه صنعتی امیرکبیر

چکیده

اساس شیرین سازی آب شور در خلاء بدین صورت می باشد که جوشش آب در فشار کمتر از اتمسفر و در نتیجه دمای بسیار پایین تر از حد نرمال اتفاق می افتد. دلیل آن این است که جوشش یک مایع زمانی اتفاق می افتد که فشار بخار برابر فشار محیط باشد.در نتیجه فشار بخار با دما افزایش می یابد. بنابراین به دلیل کاهش درجه حرارت انرژی گرمایی ذخیره می شود. در این تحقیق، مشخصات طراحی، بهره وری، و همچنین تحلیل مقایسه ای از آب شیرین کن های خورشیدی با سیستم ذخیره سازی گرمای نهان که در دهه گذشته مورد بررسی قرار گرفته است را پوشش می دهد.نتایج نشان داده است که عملکرد آب شیرین کن های خورشیدی با مواد ذخیره سازی گرمای نهان چه در سیستم های فعال و چه غیرفعال باعث افزایش بهره وری در طول شب می شود و کارایی بهتری نسبت به آب شیرین کن های خورشیدی بدون مواد ذخیره سازی گرمای نهان دارند،هرچند بهره وری آب شیرین کن های خورشیدی فعال بیشتر از آب شیرین کن های خورشیدی غیرفعال می باشند.

کلیدواژه‌ها

موضوعات


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