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The Effects of EGR and Oxygen Content on the GCI Engine Performance Under Two-Injection Modes and Fueled Biodiesel Blends

  • Research Article-Mechanical Engineering
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Abstract

When compared to other internal combustion engine types (SI engine, CI engine), the gasoline compression ignition engine (GCI engine) offers a promising and efficient way to enhance heat efficiency and less harmful emissions. The development of new engine technologies is aimed at optimizing the performance of GCI engines by allowing them to operate more efficiently at part load and using lower octane gasoline fuel under higher compression ratios. The GCI engine struggles to cope with a large amount of smoke, soot, HC and CO, and it is not very stable when operating at a low load or when it is exposed to high load conditions, which can cause autoignition. This study will introduce certain technologies, such the strategy for dealing with exhaust gas recirculation (EGR) and oxygen content, that assist in resolving the issues faced by the GCI engine. The research results show that the ignition delay tends to decrease with an increase in EGR. The ignition delay reaches its minimum value at 20% EGR with GB05 fuel. The maximum pressure in the combustion chamber of a GB05-fueled engine can be improved at 20% EGR. The engine's thermal efficiency and NOx emissions decrease, while CO and HC emissions increase with increasing EGR. The increase in oxygen content led to a decrease in ignition delay and lift-off length.

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Authors and Affiliations

  1. Faculty of Automobile Technology, Hanoi University of Industry, No. 298, Cau Dien Street, Bac Tu Liem District, Hanoi, 100000, Vietnam

    Nguyen Xuan Khoa, Nguyen Tuan Nghia, Vu Hai Quan & Nguyen Anh Ngoc

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  1. Nguyen Xuan Khoa
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  2. Nguyen Tuan Nghia
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  3. Vu Hai Quan
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  4. Nguyen Anh Ngoc
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Correspondence to Nguyen Xuan Khoa.

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Khoa, N.X., Nghia, N.T., Quan, V.H. et al. The Effects of EGR and Oxygen Content on the GCI Engine Performance Under Two-Injection Modes and Fueled Biodiesel Blends. Arab J Sci Eng (2023). https://doi.org/10.1007/s13369-023-08477-2

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