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One of the Indonesian government's programs to achieve Net Zero Emissions by 2060 is the reduction of petroleum oil use in transportation. The government's goal is that by 2025, biofuels will supplant 30% of fuel oil on a national scale. Biodiesel derived from palm oil is used as an alternative to diesel fuel in Indonesia. However, the use of biodiesel with a low calorific value reduces the efficacy of diesel engines, necessitating the addition of additional fuels. Hydrogen gas is one of the fuels which can enhance biodiesel. This research aimed to determine the efficacy and emissions of a dual-fuel diesel engine. B100 and hydrogen gas are utilized as fuel, with biodiesel injection times of 11, 13, 15, 17, and 19° BTDC. By varying the injection time of the B100 pilot fuel in a diesel engine fueled with a mixture of Hydrogen-Biodiesel gas, the most optimal performance improvement was obtained at the injection time variation of 15° BTDC, with increases in Torque, Brake Thermal Efficiency (BTE) of 0.286% and 4.51%, respectively. 4.67% reduction in specific fuel consumption. Carbon Monoxide (CO), Hydrocarbon (HC), and Smoke Emissions decreased by 100, 305.8%, and 10.1%, respectively, at the injection time variation of 19° BTDC.

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Effect of Pilot Injection Timing on Performance and Exhaust Emissions of Diesel Dual Fuel Engines (Biodiesel-Hydrogen)

  • 会议论文

  • 发表日期：

    2025年

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  • Atok Setiyawan,
  • Kuntang Winangun,
  • Muhammad Bustomi Syadzili

摘要

One of the Indonesian government's programs to achieve Net Zero Emissions by 2060 is the reduction of petroleum oil use in transportation. The government's goal is that by 2025, biofuels will supplant 30% of fuel oil on a national scale. Biodiesel derived from palm oil is used as an alternative to diesel fuel in Indonesia. However, the use of biodiesel with a low calorific value reduces the efficacy of diesel engines, necessitating the addition of additional fuels. Hydrogen gas is one of the fuels which can enhance biodiesel. This research aimed to determine the efficacy and emissions of a dual-fuel diesel engine. B100 and hydrogen gas are utilized as fuel, with biodiesel injection times of 11, 13, 15, 17, and 19° BTDC. By varying the injection time of the B100 pilot fuel in a diesel engine fueled with a mixture of Hydrogen-Biodiesel gas, the most optimal performance improvement was obtained at the injection time variation of 15° BTDC, with increases in Torque, Brake Thermal Efficiency (BTE) of 0.286% and 4.51%, respectively. 4.67% reduction in specific fuel consumption. Carbon Monoxide (CO), Hydrocarbon (HC), and Smoke Emissions decreased by 100, 305.8%, and 10.1%, respectively, at the injection time variation of 19° BTDC.