شبیه‌سازی اثر جایگزینی سوخت گازی بجای بنزین بر عملکرد موتور TU5

نوع مقاله : مقاله پژوهشی

نویسندگان

جواد خادم ¹

علی اسدی ²

اسداله بسطامی ¹

¹ دانشکده مهندسی، دانشگاه بیرجند، بیرجند، ایران

² گروه مهندسی مکانیک، دانشکده مهندسی، دانشگاه بزرگمهر قائنات، قائن

10.22067/jacsm.2025.92686.1326

چکیده

در سال‌های اخیر جایگزینی سوخت‌های گازی به جای سوخت‌های مایع در موتورهای احتراق داخلی مورد توجه فراوان قرار گرفته است. در مقاله حاضر تاثیر استفاده از سوخت‌های گازی متان و پروپان به جای بنزین بر روی پارامترهای عملکردی موتور TU5 که یکی از پر کاربردترین موتورها در صنایع خودروسازی کشور است با استفاده از نرم‌افزار دینامیک سیالات یک بعدی GT-Power شبیه‌سازی شده است. نتایج نشان داد که استفاده از سوخت گازی به دلیل اشغال حجم معینی از هوا منجر به کاهش راندمان حجمی در موتور می‌شود و کاهش راندمان حجمی در مورد گاز متان بیشتر از سوخت پروپان است. علاوه بر این استفاده از سوخت گازی در موتور بنزینی بدون ایجاد تغییرات اساسی از جمله نسبت تراکم، منجر به کاهش توان و گشتاور ترمزی می‌گردد. نتایج همچنین نشان داد که همزمان با تغییر نوع سوخت در موتور، زمان‌بندی بهینه‌ی جرقه نیز تغییر می‌یابد. مقایسه بین نتایج شبیه‌سازی و تجربی تطابق نسبتا خوبی را نشان داد.

کلیدواژه‌ها

شبیه‌سازی

موتور TU5

سوخت گازی

زمان بندی جرقه

GT-Power

موضوعات

• احتراق

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عنوان مقاله English

Simulation of the effect of replacing gasoline with gaseous fuel on TU5 engine performance

نویسندگان English

Javad Khadem ¹

Ali Asadi ²

Asadollah Bastami ¹

¹ Department of Mechanical Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran

² Department of Mechanical Engineering, Faculty of Engineering, Bozorgmehr University of Qaenat, Qaen

چکیده English

In recent years, the substitution of gaseous fuels for liquid fuels in internal combustion engines has received considerable attention. In this paper, the effect of using gaseous fuels such as methane and propane instead of gasoline on the performance parameters of the TU5 engine, which is one of the most widely used engines in the country's automotive industry, has been simulated using the one-dimensional fluid dynamics software GT-Power. The results showed that using gaseous fuel, due to occupying a certain volume of air, led to a decrease in volumetric efficiency, with the reduction in volumetric efficiency being greater for methane compared to propane. Additionally, using gaseous fuel in the gasoline engine, without making significant changes such as altering the compression ratio, resulted in a reduction in brake power and torque. The results also showed that the optimal spark timing also changes simultaneously with the change in the type of fuel in the engine. The comparison between simulation and experimental results showed relatively good agreement.

کلیدواژه‌ها English

Engine TU5

Gas Fuel

Spark Timing

Simulation

GT-Power

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