بررسی و مقایسه عملکرد مرطوب‌ساز تخت غشایی هوا - هوا و هوا - هیدروژن جهت استفاده در پیل سوختی پلیمری

علوم کاربردی و محاسباتی در مکانیک

مقاله 5، دوره 37، شماره 3 - شماره پیاپی 41، شهریور 1404، صفحه 79-94   

نوع مقاله: مقاله پژوهشی

شناسه دیجیتال (DOI): 10.22067/jacsm.2025.90687.1297

نویسندگان

مرتضی موسوی زاهد؛ ابراهیم افشاری^*

گروه مهندسی مکانیک، دانشکده فنی و مهندسی، دانشگاه اصفهان، اصفهان.

چکیده

از روش‌های مناسب مدیریت آب در پیل‌سوختی غشا پلیمری مرطوب‌سازی گازهای واکنشگر است که تاثیر زیادی بر عملکرد پیل دارد. در این مطالعه، به مدلسازی سه بعدی مرطوبساز غشایی برای دو گاز هیدروژن و هوا در سمت خشک و هوای مرطوب در سمت مرطوب پرداخته و تاثیر دبی سمت خشک و مرطوب بر درصد رطوبت خروجی سمت خشک، دمای نقطه شبنم، نرخ انتقال آب و نسبت بازیافت آب بررسی شده و عملکرد مرطوب‌سازهای هوا - هوا و هوا - هیدروژن مقایسه شده است. نتایج نشان می‌دهند که در یک دبی ثابت سمت مرطوب، با افزایش دبی سمت خشک، اختلاف دمای نقطه شبنم در هیدروژن و هوا کاهش و نرخ انتقال و نسبت بازیافت آب افزایش می‌یابد. همچنین، در یک دبی ثابت در سمت خشک با افزایش دبی سمت مرطوب، اختلاف دمای نقطه شبنم در هیدروژن و هوا افزایش و نرخ انتقال و نسبت بازیافت آب کاهش می‌یابد. به طور کلی، نتایج نشان می‌دهند که راندمان مرطوب‌ساز هوا - هیدروژن بالاتر از هوا - هوا است.

کلیدواژه‌ها

مرطوب ساز غشایی؛ پیل سوختی؛ انتقال حرارت؛ رطوبت نسبی؛ نسبت انتقال آب

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