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

موضوعات


عنوان مقاله [English]

Prediction and Optimization of Palm Biodiesel Characteristics Using Permittivity Properties and Response Surface Methodology

نویسندگان [English]

  • Mohammad Zarein 1
  • Mohammad Hadi Khoshtaghaza 2
  • برات قبادیان 1
  • Hossein Ameri Mahabadi 3
1 Mechanical & Biosystems Engineering Dept., Tarbiat Modares University, Tehran, Iran
2 Biosystem Engineering Dept., College of Agriculture, Tarbiat Modares University
3 Electrical Engineering Department, Iran Telecommunication Research Center (ITRC), Tehran, Iran.
چکیده [English]

The usage of biodiesel quality monitoring system (online and batch) is always the basic requirement of its production which requires to research in this area. The purpose of this study is to predict and optimize the palm biodiesel characteristics using its permittivity properties. The parameters of biodiesel permittivity properties (ε’, dielectric constant and ε″, loss factor) at microwave frequencies of (434, 915 and 2450 MHz) were used as input variables. The palm biodiesel characteristics as fatty acid methyl ester (FAME) content and flash point (FP) at three different level of reaction time (3, 9 and 27 min) and catalyst concentration (1, 1.5 and 2 % w/woil) were selected as output parameters for the models. The response surface methodology was developed for prediction and optimization of FAME content and flash point. The optimum condition was obtained using RSM by FAME content of 95.87% and flash point of 162.7 °C with desirability of 0.999.

کلیدواژه‌ها [English]

  • FAME Content
  • Flash point
  • Dielectric Constant
  • Loss factor
  • Optimum conditions
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