Volume 11, Issue 2 (6-2021)                   ISE 2021, 11(2): 3602-3625 | Back to browse issues page

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Muhamad Tobib H, Hairuddin A A, Abdul Aziz N, Al Anbagi M, Md Noor M, Ayob S. AN EXPERIMENTAL STUDY OF THE PERFORMANCE OF A HOMOGENEOUS CHARGE COMPRESSION IGNITION (HCCI) ENGINE FUELED WITH PALM OIL BASED BIODIESEL. ISE. 2021; 11 (2) :3602-3625
URL: http://www.iust.ac.ir/ijae/article-1-548-en.html
Universiti Putra Malaysia
Abstract:   (885 Views)
HCCI engines have become the attention of research lately due to their advantages in reducing the emissions level, and their fuelling ability with alternative fuels. For this purpose, a single cylinder diesel engine with a port fuel injector and heated intake air were used to operate the HCCI engine at 2700 rpm using four different blends of POB biodiesel. The parameters varied for the study were different λ and intake air temperature. When using diesel fuel on HCCI mode, it is found that the engine power, torque, and BTE are lower and fuel consumption is higher compared to conventional Compression Ignition Direct Injection (CIDI) mode. The in-cylinder pressure pattern for HCCI mode shows that the combustion is advanced, and the in-cylinder pressure peak is higher at rich mixture compared to CIDI mode. The in-cylinder pressure decreases in the case of higher amount of biodiesel. Combustion intensity for biodiesel fuel is lower, which affects the heat release rate, whereas a high intake temperature triggers the combustion easily, enhances the fuel mixture auto-ignition proses. Increasing the amount of biodiesel will increase the NOx emissions insignificantly, however it is still lower than that of CIDI. POB based biodiesel improved the emissions of HCCI engines.
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