Experimental investigation of common rail direct injection engine operated on hydrogen fumigation and mango seed biodiesel-diesel blend dosed with graphene oxide nanoparticle employing exhaust gas recirculation for NOx control strategy

IF 7.5 1区工程技术 Q2 ENERGY & FUELS

Fuel Pub Date : 2025-10-07 DOI:10.1016/j.fuel.2025.136998

Amol Pitale, Pramod Walke, Vivek Khond

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引用次数: 0

Abstract

In this study, replacement of diesel with mango seed biodiesel (MSBD) with enrichment of hydrogen to reduce carbon emission was explored. Also, the effect of exhaust gas recirculation was investigated with graphene oxide nanoparticles (20 ppm) on the MSBD −diesel blend with varying hydrogen fumigation composition is investigated on a compression ignition (CI) engine in a dual-fuel mode. Biodiesel is produced from Mango seed oil, and blend of 15 % (v/v) with 85 % of diesel fuel was made and 20 ppm Graphene oxide particles are dosed and ultrasonicated to form stable blends. The samples are tested on diesel engine as a primary fuel and hydrogen is fumigated through intake manifold with variable volume flow rates. The effects of fuel blends and hydrogen fuel enrichment with and without exhaust gas recirculation on combustion, performance, and emissions of diesel engine are investigated at varying load condition. It is observed that maximum cylinder pressure is 58.09 bar for B15GO20H4 compared to 57.82 bar for B15 blend. The maximum net heat release rate was 67.74 J/⁰CA for B15GO20H8EG5 compared to 50.99 J/ ⁰CA for B15 blend. The maximum percentage increase in brake thermal efficiency was 8.75 % and decreases in brake-specific fuel consumption by 19.35 % at full load for B15GO20H8 blend when compared to the biodiesel–diesel blend. The decrease in carbon monoxide, smoke opacity and carbon dioxide emissions by 66.66 %, 56.55 % and 25.58 % for B15GO20H8 blend respectively, at 100 percent load when compare to B15. However, the Hydrocarbon increased by 29.41 % at a higher load as compare to B15. NOx emission was decreases for all samples compared to B15 and maximum reduction (79.04 %) was observedin B15GO20H8EG5. It is concluded that exhaust gas recirculation is more effective for reduction of NOx in hydrogen enriched CI engine.

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氢熏蒸和芒果籽生物柴油-掺加氧化石墨烯纳米颗粒柴油混合燃料共轨直喷发动机NOx控制策略的实验研究

本研究探索用芒果籽生物柴油（MSBD）替代柴油，富集氢，减少碳排放。此外，在双燃料模式下的压缩点火（CI）发动机上，研究了氧化石墨烯纳米颗粒（20 ppm）对不同氢熏蒸成分的MSBD -柴油混合物的废气再循环效果。生物柴油是由芒果籽油生产的，用15% （v/v）和85%的柴油混合制成，20 ppm的氧化石墨烯颗粒被加药并超声处理以形成稳定的混合物。样品在作为主要燃料的柴油发动机上进行测试，氢气通过可变体积流量的进气歧管熏蒸。在不同负荷工况下，研究了混合燃料和氢燃料浓缩对柴油机燃烧、性能和排放的影响。观察到B15GO20H4的最大气缸压力为58.09 bar，而B15共混料的最大气缸压力为57.82 bar。B15GO20H8EG5的最大净放热率为67.74 J/0CA，而B15的最大净放热率为50.99 J/0CA。与生物柴油-柴油混合燃料相比，B15GO20H8混合燃料的最大制动热效率提高了8.75%，满载时制动油耗降低了19.35%。与B15相比，在100%负荷下，B15GO20H8混合物的一氧化碳、烟雾透明度和二氧化碳排放量分别降低了66.66%、56.55%和25.58%。然而，与B15相比，碳氢化合物在更高负荷下增加了29.41%。与B15相比，所有样品的NOx排放量都有所下降，其中B15GO20H8EG5的NOx排放量下降幅度最大（79.04%）。结果表明，在富氢内燃机中，废气再循环对NOx的降低更为有效。

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来源期刊

Fuel 工程技术-工程：化工

CiteScore

12.80

自引率

20.30%

发文量

3506

审稿时长

64 days

期刊介绍： The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.