Bài viết Nghiên cứu đặc tính cháy HCCI trên động cơ diesel 1 xi lanh - BD178F(E) khi thay đổi tỷ số nén bằng phần mềm AVL – BOOST trình bày kết quả ảnh hưởng của tỷ số nén tới đặc tính cháy của động cơ HCCI trên phần mềm mô phỏng AVL – BOOST. | Tạp chí Khoa học Giao thông vận tải Tập 73 Số 5 06 2022 540-551 Transport and Communications Science Journal RESEARCH OF HOMOGENEOUS CHARGE COMPRESSION IGNITION CHARACTERISTICS ON 1 CYLINDER DIESEL ENGINE - BD178F E WHEN CHANGING COMPRESSION RATIO BY AVL BOOST SOFTWARE Ha Khuong Thi Faculty of Mechanical Engineering University of Transport and Communications Cau Giay Str. Hanoi Vietnam ARTICLE INFO TYPE Research Article Received 28 04 2022 Revised 10 05 2022 Accepted 08 06 2022 Published online 15 06 2022 https Corresponding author khuongha82@ Tel 84-985477788 Abstract. The engine works according to the homogeneous charge compression ignition characteristic received a lot of attention due to the great advantage of reducing most of PM and NOx emissions while effective and indicative parameters are still equivalent. Therefore study the conversion of diesel engines to operate according to the HCCI characteristic is necessary. This research presents the results of the influence of compression ratio on the combustion characteristics of HCCI engines on simulation software AVL - BOOST. The simulation process was carried out on a single cylinder engine Kubota BD178F E equipped with the modified intake manifold at engine speed from 1200rpm to 3200 rpm and Load modes 10 20 30 and 50 compression ratio reduced from 20 to and . The simulation results show that Reducing the engine compression ratio still works according to the HCCI characteristic the time of starting combustion is gradually delayed the compression ratio should not be reduced to less than . Keywords Homogeneous charge compression ignition compression ratio AVL Boost software. 2022 University of Transport and Communications 540 Transport and Communications Science Journal Vol 73 Issue 5 06 2022 540-551 Tạp chí Khoa học Giao thông vận tải NGHIÊN CỨU ĐẶC TÍNH CHÁY HCCI TRÊN ĐỘNG CƠ DIESEL 1 XI LANH - BD178F E KHI THAY ĐỔI TỶ SỐ NÉN BẰNG PHẦN MỀM AVL
