This article is focused to analyze the effects in engine operations when different alternative fuels jointly used. Normally biogas from pure sago sludge composed with Hydrogen sulfide (H₂S) which lead severe corrosion in engine parts. To reduce this effect, poultry manure (70 wt %) was mixed with sago sludge (30 wt %) for production of biogas. At maximum load, the brake thermal efficiency was found reduced up to 12 % with DTPO30 + biogas and 17 % with diesel + biogas compared to normal diesel operations. The brake specific fuel consumption was higher up to 10 % with distilled tire pyrolysis oil (DTPO30) with biogas operations than diesel with biogas. Reduced NOx about 27 % with DTPO30+ biogas and 21 % with diesel+ biogas than diesel operations. Correspondingly, increased CO was reported with dual fuel mode due to CO₂ presence with biogas. Also, increased hydrocarbon and reduced smoke opacity with biogas operations were reported. The H₂S effect on engine operation was reduced hence it can increase the engine reliability.

中文翻译：

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双模式下DI发动机运行的评估：木薯西米渣产生的沼气污泥家禽粪便和轮胎油混合物

本文重点分析联合使用不同替代燃料时对发动机运行的影响。通常由纯西米污泥中的硫化氢（ H ₂S）导致发动机零件严重腐蚀。为了减少这种影响，将家禽粪便（70 wt％）与西米污泥（30 wt％）混合以生产沼气。与正常的柴油运行相比，在最大负载下，DTPO30 +沼气的制动热效率降低了12％，柴油+沼气的制动热效率降低了17％。使用沼气的蒸馏轮胎热解油（DTPO30）的制动比油耗比使用沼气的柴油高出10％。与柴油操作相比，DTPO30 +沼气的NOx降低约27％，柴油+沼气的NOx降低约21％。相应地，据报道，由于沼气中存在CO ₂，双燃料模式下的CO增加。此外，据报道，随着沼气的使用，碳氢化合物的增加和烟的不透明度降低。H ₂降低了对发动机运行的影响，因此可以提高发动机的可靠性。