مطالعه تاثیر پارامترهای عملکردی احتراق هیدروژن بر تولید انتروپی و تغییرات آنتالپی
علوم کاربردی و محاسباتی در مکانیک
مقاله 7 ، دوره 37، شماره 3 - شماره پیاپی 41 ، شهریور 1404، صفحه 117-136 3.02 M )
نوع مقاله: مقاله پژوهشی
شناسه دیجیتال (DOI): 10.22067/jacsm.2025.90295.1288 نویسنده
علی اسدی*
چکیده تولید انتروپی و تغییرات آنتالپی ازپارامترهای مهم دراحتراق هیدروژن به شمارمی‌رود. هدف اصلی دراین پژوهش مطالعه‌ی تاثیر پارامترهای عملکردی احتراق هیدروژن برتولید انتروپی و تغییرات آنتالپی است.شبیه‌سازی عددی با استفاده از مدل جریان مخالف نرم افزاراحتراق کمکین انجام گردید.جریان آرام درنظرگرفته شد. جمله‌ی نفوذ به روش تفاضل مرکزی وجمله جابجایی به روش بالا دست منفصل شد.معادلات منفصل شده بااستفاده از حلگردو نقطه‌ای و انتگرال‌گیری زمانی حل گردید.سپس اثر پارامترهای فشار و دمای محیط و همچنین دما و سرعت ورودی سوخت و اکسید کننده بر تولید انتروپی و تغییرات آنتالپی بررسی گردید.نتایج نشان داد که افزایش فشار، دمای ورودی سوخت و دمای ورودی اکسید کننده منجر به افزایش ماکزیمم دما و آنتالپی گردید.اما افزایش سرعت ورودی اکسید کننده، ماکزیمم دما و آنتالپی را کاهش داد.همچنین افزایش دمای ورودی سوخت و افزایش فشار به ترتیب سطح انتروپی سوخت را افزایش و کاهش داد.افزایش دمای ورودی سوخت و سرعت ورودی اکسید کننده سطح انتروپی در ناحیه‌ی شعله را کاهش و افزایش دمای ورودی اکسید کننده و سرعت ورودی سوخت آن را کاهش داد. کلیدواژه‌ها
تولید انتروپی ؛ تغییرات آنتالپی ؛ شعله نفوذی ؛ مطالعه‌ی پارامتری ؛ احتراق هیدروژن
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آمار
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