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首页> 外文期刊>Clean technologies and environmental policy >Investigations for the optimal combination of zinc oxide nanoparticle-diesel fuel with optimal compression ratio for improving performance and reducing the emission features of variable compression ratio diesel engine
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Investigations for the optimal combination of zinc oxide nanoparticle-diesel fuel with optimal compression ratio for improving performance and reducing the emission features of variable compression ratio diesel engine

机译：为了提高可变压缩比柴油机的性能并降低其排放特性，研究具有最佳压缩比的氧化锌纳米颗粒柴油燃料的最佳组合。

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The continual hike in environmental pollution from diesel engines has raised the concern of researchers to identify certain clean fuels. For this purpose, experimental investigations are carried out to inspect the consequences of ZnO nanoparticles addition for performance and emissions features of a 4-stroke, single-cylinder diesel engine. ZnO nanoparticles were mixed with pure diesel in varying proportions ranging from 5 to 25mg. The better dispersion of ZnO nanoparticles in diesel was attained by means of magnetic stirrer and ultrasonication process. The test fuels were experimented at varying engine loads of 2kW, 4kW, 6kW, 8kW, 10kW and 12kW at 1500rpm engine speed. It was observed that among different test fuels, an enhancement in brake thermal efficiency was achieved by 15.58% and reduction of 11.11% in brake specific fuel consumption for 20ZnO60DF (20mg ZNP+20mg CTAB surfactant+600ml diesel) at 12kW engine load as compared with neat diesel. The toxic emissions of NOX, HC, CO, CO2 and particulate matter with the inclusion of 20ZnO60DF were significantly decreased by 57.46%, 78.78%, 58.93%, 41.85% and 42.51%, respectively, as correlated with pure diesel fuel at 12kW condition with 18 compression ratio. The recommended optimal combination of ZnO nanoparticle-diesel with optimal compression ratio for better performance and reduced emissions level was found out to be 20ZnO60DF with compression ratio 18. So, it is concluded that ZnO nanoparticles addition to diesel could be accepted as a clean alternative fuel as it emits lesser emissions and acts as environmental-friendly fuel.[GRAPHICS].
机译：柴油机对环境的污染持续增加，引起了研究人员对确定某些清洁燃料的关注。为此，进行了实验研究，以检查添加ZnO纳米颗粒对四冲程单缸柴油机的性能和排放特性的影响。 ZnO纳米颗粒与纯柴油以5至​​25mg的不同比例混合。通过磁力搅拌和超声处理，使ZnO纳米颗粒在柴油中的分散性更好。在1500rpm的发动机转速下，在2kW，4kW，6kW，8kW，10kW和12kW的各种发动机负载下对测试燃料进行了试验。据观察，在20kW发动机负载下，与20kW发动机负载相比，在20ZnO60DF（20mg ZNP + 20mg CTAB表面活性剂+ 600ml柴油）下，在不同的测试燃料中，制动热效率提高了15.58％，制动比油耗降低了11.11％。纯柴油。在12kW条件下，与纯柴油相比，添加20ZnO60DF时NOX，HC，CO，CO2和颗粒物的有毒排放量分别显着降低了57.46％，78.78％，58.93％，41.85％和42.51％。 18压缩比。为了获得更好的性能和降低的排放水平，推荐的具有最佳压缩比的ZnO纳米粒子-柴油的最佳组合是压缩比为18的20ZnO60DF。因为它的排放量少，并且是环保燃料。[GRAPHICS]。

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