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Impact of Low Viscosity Engine Oil on Performance, Fuel Economy and Emissions of Light Duty Diesel Engine

机译：低粘度发动机油对轻型柴油机性能，燃料经济性和排放的影响

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The Global Fuel Economy Initiative in 21st session of COP21 to the UNFCCC aims to develop 50 percent more efficient automobiles by the year 2050.This initiative has enhanced interest in fuel economy improvements and emission reduction using novel engine-related technologies and fuel efficient engine oil. Low viscosity grade engine oils have demonstrated the potential to improve the fuel economy by reducing the friction and lowering the greenhouse gases. In this context of developing fuel efficient engine oils, this study focuses on establishing the validity of an in-house short duration test protocol to differentiate engine oils from a fuel economy aspect and also attempts to relate reduced exhaust emissions. In the present study, low viscosity grade oils - SAE 0W-20, SAE 5W-30 and SAE 20W-40 as the baseline oil, were selected for assessing engine oil effects on fuel economy of diesel engines. Effects of viscosity on engine performance with respect to power, fuel economy and emissions were investigated by conducting fuel economy engine tests on a single cylinder Petter AV1 diesel engine. In the results, higher fuel economy and lower CO_2, HC and NOx emissions were observed using lower viscosity engine oils compared to higher viscosity engine oils. The analysis reveals that lower viscosity engine oils indicate favorable prospects in terms of enhanced fuel economy and reduced exhaust emissions due to engine oil.
机译：第21届COP21的全球燃料经济倡议于2050年到2050年，旨在开发50％的高效汽车。本举措提高了采用新型发动机相关技术和省油效率的燃料经济性改善和减排的兴趣。低粘度级发动机油已经证明了通过减少摩擦和降低温室气体来改善燃料经济性的潜力。在开发燃料效率发动机油的这种背景下，本研究致力于建立内部短期持续时间试验方案的有效性，以区分从燃料经济性方面的发动机油，并试图与减少的废气排放相关。在本研究中，选择低粘度级油 - SAE 0W-20，SAE 5W-30和SAE 20W-40作为基线油，用于评估柴油发动机燃料经济性的发动机油效应。通过在单缸赛道AV1柴油发动机上进行燃油经济发动机测试，研究了粘度对发动机性能的影响。在结果，与较高粘度发动机油相比，使用较低粘度发动机油观察到更高的燃料经济性和较低的CO_2，HC和NOx排放。该分析表明，较低的粘度发动机油在增强的燃油经济性和由于发动机油引起的排放减少的排放方面表示有利的前景。

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