بهینه سازی متغیرهای عملکرد و آلایندگی موتور دیزل با استفاده از سوخت دیزل – روغن الکل به کمک روش سطح پاسخ

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران

2 استادیار، گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، اهواز، ایران

3 گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه شهید چمران اهواز، ایران

چکیده

امروزه تمایل به تحقیق در زمینه سوخت های زیستی بر پایه الکل افزایش یافته است. روغن الکل، الکل با زنجیره طولانی بوده که محصول جانبی فرایند تولید بیواتانول به شمار می‌رود. در این تحقیق به بررسی عملکرد و آلاینده های موتور دیزل در ترکیبات مختلف روغن الکل در 5 سطح مختلف شامل (%0، %5، %10، %15 و %20)، بار (%0، %25، %50، %75 و %100) و سرعت موتور (1400،1700،2000،2300 و rpm 2600) به کمک روش سطح پاسخ (RSM) و طرح آزمایش مرکب مرکزی (CCD) پرداخته شد. بهینه‌سازی چند هدفه به منظور بیشینه کردن توان، گشتاور موتور وکمینه کردن مصرف سوخت ویژه وآلاینده ها شامل CO، CO2، UHC، NOX انجام شد. نتایج حاصل از بهینه سازی نرم افزار میزان روغن الکل% 57/11، سرعتrpm 2264 و بار %40 به عنوان ترکیب بهینه بدست آورده و مقادیر گشتاور، توان و مصرف سوخت ویژه به ترتیبN.m 9/10،Kw 9/1و Kg/Kw.hr 5/354پیش بینی گردید. میزان آلاینده های موتور شامل CO، UHC، CO2 و NOX در این نقطه به ترتیب 19/0، 5/54، 34/2 و 7/87 درصدحجمی بدست آمد. نتایج نشان داد با افزایش در میزان نسبت روغن الکل، توان و گشتاور موتور در دورهای متفاوت موتور افزایش یافته و میزان NOX و UHC کاهش می یابد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Optimization of performance and Emission Characteristic of Fusel Oil – Diesel blends Using Response Surface Methodology

نویسندگان [English]

  • Seyed Mohammad Safieddin Ardebili 1
  • Hasan Zaki Dizaji 2
  • Mohammad Javad SheikhDavoodi 3
1 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran
2 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
3 Department of Biosystems Engineering, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
چکیده [English]

The Alcohol based fuels has attracted the attention of alternative fuel researchers. Fusel oil is an alcohol based fuel collected as a by-product during bioethanol production. The main objective of this study is to determine the optimal blend ratio of fusel oil–gasoline regarding the performance and emissions of spark ignition engine using response surface methodology based on CCD design. In this research work, experimental investigations have been performed with different fusel oil–diesel levels (0%, 5%, 10%, 15% and 20%), different load (0%, 25%, 50%, 75% and 100%) and different engine speed (1400, 1700, 2000, 2300 and 2600 rpm).The multi-objective optimization was performed to maximize the power, torque and minimized BSFC, NOx, UHC and CO emission. The best condition of engine parameters was 11.57% for fusel oil, 40% load and 2264 rpm engine speed. The optimal values were 1.9 kW, 10.9 N.m, 354.5 g/kW h, 0.19, 54.5,2.34 and 87.7(V%) for power, Torque, BSFC, CO, UHC, CO2 and NOx emissions respectively. were prolonged. The results showed that fusel oil usage increased power and torque. It was found that both NOx and UHC emissions decreased.

کلیدواژه‌ها [English]

  • Fusel oil
  • Engine Performance
  • Exhaust Emissions
  • Response Surface Methodology
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