پیش بینی و بهینه سازی برخی ویژگی های بیودیزل پالم با استفاده از خواص دی الکتریک به روش سطح پاسخ

نوع مقاله: مقاله پژوهشی

نویسندگان

1 گروه مهندسی مکانیک بیوسیستم، دانشگاه تربیت مدرس، تهران، ایران

2 /گروه مکانیک بیوسیستم، دانشکده کشاورزی، دانشگاه تربیت مدرس.

3 مهندسی برق، مرکز تحقیقات مخابرات ایران، تهران

چکیده

استفاده از سامانه‌ پایش کیفی بیودیزل تولیدی (به­صورت برخط و ناپیوسته) همواره نیاز اساسی تولید این فرآورده است که نیازمند تحقیقاتی در این زمینه است. هدف از این تحقیق پیش­بینی و بهینه­ سازی ویژگی­های بیودیزل پالم با استفاده از خواص دی­الکتریک آن است. متغیرهای خواص دی­الکتریک بیودیزل (έ، ثابت دی­الکتریک و ″ε، فاکتور اتلاف) در فرکانس­ های مایکروویو (434، 915 و MHz 2450) به­ عنوان متغیرهای ورودی مورد استفاده قرار گرفت. ویژگی­های بیودیزل پالم، محتوای متیل استر اسیدهای چرب و نقطه اشتعال در سه سطح مختلف زمان واکنش (7، 21 و 63 دقیقه) و غلظت کاتالیزور (1، 5/1 و %w/woil2)  به­ عنوان متغیرهای خروجی­ مدل درنظر گرفته شد. روش سطح پاسخ برای پیش­بینی و بهینه­سازی محتوای متیل استر و نقطه اشتعال مورد ارزیابی قرار گرفت. شرایط بهینه با استفاده از سطح پاسخ برای محتوای متیل استر به میزان 87/9۱ درصد و نقطه اشتعال به میزان C° 7/162 با مطلوبیت 999/0 به­دست آمد. همچنین، با استفاده از این روش معادله­ درجه دو برای پیش­بینی محتوای متیل استر و نقطه اشتعال به­ دست آمد

کلیدواژه‌ها

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