Ứng dụng của phụ gia nano trong động cơ đốt trong: Một đánh giá quan trọng

Journal of Thermal Analysis and Calorimetry - Tập 147 - Trang 9383-9403 - 2022
J. Sadhik Basha1, Montaha Al Balushi2, Manzoore Elahi M. Soudagar3, Mohammad Reza Safaei4,5, M. A. Mujtaba6, T. M. Yunus Khan7, Nazia Hossain8, Ashraf Elfasakhany9
1Department of Process Engineering, International Maritime College Oman, Sohar, Sultanate of Oman
2Graduate Student, Department of Process Engineering, International Maritime College Oman, Sohar, Sultanate of Oman
3Department of Mechanical Engineering, School of Technology, Glocal University, Uttar Pradesh, Saharanpur District, India
4Department of Mechanical Engineering, Florida International University, Miami, USA
5Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
6Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia
7Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
8School of Engineering, RMIT University, Melbourne, Australia
9Mechanical Engineering Department, College of Engineering, Taif University, Taif, Saudi Arabia

Tóm tắt

Bài báo này làm nổi bật các ứng dụng của công nghệ nano được sử dụng trong động cơ đốt trong theo phương diện nanofluid. Nanofluid được chuẩn bị bằng cách phân tán hoặc trộn các hạt kích thước nano vào một chất lỏng cơ bản (như, H2O, dầu bôi trơn, glycol, biodiesel, diesel, v.v.) để đạt được các thuộc tính mong muốn trong một lĩnh vực cụ thể. Việc thêm các hạt nano vào bất kỳ nhiên liệu cơ bản nào sẽ gây ra sự thay đổi về tính chất nhiệt - vật lý và nhiệt - hóa học, đây là yêu cầu quan trọng nhất trong hầu hết các ứng dụng kỹ thuật. Trong bài báo này, các ứng dụng của các hạt nano trong động cơ đốt trong đã được thảo luận sâu sắc về các ứng dụng xúc tác, tính chất nhiệt - hóa học, phát thải và các thuộc tính hiệu suất của động cơ diesel, v.v. Thông tin gần đây cho thấy sự tồn tại của các hạt nano rất phổ biến vì chúng đóng vai trò thiết yếu trong việc điều chỉnh các tính chất của nhiên liệu (cụ thể là, giá trị nhiệt lượng, số cetane, mật độ, độ nhớt, điểm chớp cháy, điểm cháy, v.v.). Trong một số nghiên cứu, các hạt nano cũng được xem xét như một chất làm lạnh trong các ứng dụng động cơ đốt trong, không phụ thuộc vào loại nhiên liệu được sử dụng trong sản xuất điện. Gần đây, một số nhà nghiên cứu đã giới thiệu các phụ gia nano (chẳng hạn như alumina, ống nanotube carbon, oxit kẽm, nhôm) để phục vụ như một xúc tác mang nhiên liệu nhằm nâng cao chức năng của động cơ đốt trong. Cũng đã có thông báo rằng các hạt nano cải thiện hiệu suất và giảm ô nhiễm độc hại so với các nhiên liệu tinh khiết (như diesel tinh khiết và biodiesel tinh khiết). Tỷ lệ bề mặt/thể tích vượt trội và tính phản ứng xúc tác/hóa học là những thuộc tính quan trọng của các hạt nano, ảnh hưởng đến các nhà nghiên cứu và nhà khoa học để áp dụng chúng trong các ứng dụng động cơ đốt trong.

Từ khóa

#nanotechnology #nanofluids #internal combustion engines #nanoparticles #fuel properties #catalytic applications #diesel engines

Tài liệu tham khảo

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