纳米颗粒包覆催化转化器对CI发动机排放特性的实验研究

Q3 Engineering
P. Ramanathan, R. Rajavel
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引用次数: 0

摘要

催化转化器是减少汽车废气排放的一项行之有效的技术。虽然催化剂转化器是一种有效和高效的方法来反应某些污染物,但由于使用钯、铂和铑等贵金属,它们的价格昂贵。为了找到一种可行的贵金属催化剂替代品,已经进行了各种研究,贵金属催化剂可以与车辆污染物发生反应,例如氮氧化物(NOx)、一氧化碳(CO)、未燃烧的碳氢化合物(UBHC)和碳氢化合物燃烧的内燃机燃烧产生的颗粒物(PM)。研究了传统化石燃料压缩点火发动机中纳米颗粒包覆催化转化器的排放特性。研究中使用的催化剂是金属氧化物的纳米颗粒,如氧化铝(纳米Al2O3)颗粒和氧化钛纳米(TiO2)颗粒。这种催化剂比贵金属催化剂便宜。在单缸四冲程水冷柴油压缩点火发动机上进行了纳米颗粒包覆催化转化器实验。废气通过沉积在催化转化器基底蜂窝状结构上的纳米级催化剂,并使用五气分析仪测量排放量。结果显示氮氧化物水平下降。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
An Experimental Study on the Emission Characteristics in CI Engine using Nano Particle Coated Catalytic Converter
A proven viable technology to reduce vehicular exhaust gas emission is the catalytic converter. Although catalyst converters are an effective and efficient method to react to certain pollutants, they are expensive due to the use of noble metals like palladium, platinum and rhodium. Various research has been carried out to find a viable alternative to the noble metal catalyst that can react over vehicular pollutants such as oxides of nitrogen (NOx), carbon monoxide (CO), unburnt hydrocarbon (UBHC) and particulate matter (PM) emitted by the combustion of hydrocarbon burnt internal combustion engine. This paper investigates the emission characteristics of a nano-particle-coated catalytic converter in a conventional fossil-fuelled compression ignition engine. The catalyst used in the research is a nano-particle of metal oxides such as aluminium oxide (nano-sized Al2O3) particle and titanium oxide nano-sized (TiO2) particle. This catalyst is less expensive compared to a noble catalyst. Experiments were made on a single cylinder four strokes water-cooled diesel-fuelled compression ignition engine with a catalytic converter coated with alternative nano-particles. The exhaust gas was allowed to pass through the nano-sized catalyst deposited over the honeycomb structure of the substrate of the catalytic converter and the emission was measured using a five-gas analyser. The result showed a decreased level of oxides of nitrogen.
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来源期刊
International Journal of Vehicle Structures and Systems
International Journal of Vehicle Structures and Systems Engineering-Mechanical Engineering
CiteScore
0.90
自引率
0.00%
发文量
78
期刊介绍: The International Journal of Vehicle Structures and Systems (IJVSS) is a quarterly journal and is published by MechAero Foundation for Technical Research and Education Excellence (MAFTREE), based in Chennai, India. MAFTREE is engaged in promoting the advancement of technical research and education in the field of mechanical, aerospace, automotive and its related branches of engineering, science, and technology. IJVSS disseminates high quality original research and review papers, case studies, technical notes and book reviews. All published papers in this journal will have undergone rigorous peer review. IJVSS was founded in 2009. IJVSS is available in Print (ISSN 0975-3060) and Online (ISSN 0975-3540) versions. The prime focus of the IJVSS is given to the subjects of modelling, analysis, design, simulation, optimization and testing of structures and systems of the following: 1. Automotive vehicle including scooter, auto, car, motor sport and racing vehicles, 2. Truck, trailer and heavy vehicles for road transport, 3. Rail, bus, tram, emerging transit and hybrid vehicle, 4. Terrain vehicle, armoured vehicle, construction vehicle and Unmanned Ground Vehicle, 5. Aircraft, launch vehicle, missile, airship, spacecraft, space exploration vehicle, 6. Unmanned Aerial Vehicle, Micro Aerial Vehicle, 7. Marine vehicle, ship and yachts and under water vehicles.
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