Performance and Emission Analysis of Diesel Engine Using Oxygenated compounds
Performance and Emission Analysis of Diesel Engine Using Oxygenated compounds
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DOI：
10.14257/ijast.2013.61.02
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发表时间：
2013-12
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影响因子：
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通讯作者：
Sateesh Yalavarthi;Anil Kumar Chintalapudi;S. Dev
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文献类型：
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作者：
Sateesh Yalavarthi;Anil Kumar Chintalapudi;S. Dev
向柴油中添加含氧化合物，提供额外的氧气，从而使燃料燃烧更多，从而减少排放。在本研究中，两种含氧化合物，如乙氧基乙醇和乙二醇被认为是3.7千瓦，水冷，和kirloskar发动机。将选定的含氧化合物以5%和10%的体积比例与柴油混合，对柴油机的性能和排放进行了试验研究。将所得数据与常规柴油进行了比较，结果表明，随着混合比例的增加，制动热效率（BTE）降低。CO2、HC排放量减少，NOX排放量增加。世界上大多数能源需要是通过石油化学来源、煤和天然气提供的，但水力发电和核能除外，所有这些来源都是有限的，而且目前的使用率很快就会被消耗。其中，柴油燃料因其成本低、热效率高，在工业运输和农业产品中具有重要作用。化石燃料是二氧化碳排放的最大来源，化石燃料的大量使用正在使地球上的二氧化碳覆盖层变厚。这层毯子能捕获地球从太阳接收到的紫外线（本质上是热量）。随着世界在技术上变得越来越先进，越来越多的能源被用来跟上不断变化的需求。必须提高自然资源的使用效率，并在可能的情况下开发可再生替代品，以保护当代人和子孙后代所依赖的资源。柴油行业在全球范围内面临越来越大的压力，需要找到减少颗粒物、氮氧化物、烟雾、HC和CO排放的方法。考虑的方法包括发动机改装、燃料更换和尾气处理方法。正是在这里，含氧柴油混合物进入了画面，因为人们发现使用这些混合物可以大大减少排放，而不会影响所使用的发动机的效率。含氧柴油混合物提供了一种有效的方法来减少柴油发动机的排放，特别是烟雾。烟雾或颗粒物质的排放主要是由于燃烧过程中缺乏氧气。（1,2,8）此外，由于燃料热值随氧含量的增加而略有降低，bsfc略有增加。随着氧含量的增加，制动热效率也有所提高。(4)考虑到生物柴油的生产潜力，刹车比油耗和NOx排放，生物柴油在生物柴油-柴油混合燃料中的比例应保持在较低的比例。(3)与柴油相比，在较高的发动机转速下，混合燃料的SFC没有显著增加。柴油的分子结构中不含氧。（5,6）唯一可用于燃烧的氧气来自吸入过程中所吸入的空气。由于含氧
The addition of oxygenated compounds to diesel, supply additional oxygen which results in more burning of the fuel and thereby reducing emissions. In the present study, two oxygenated compounds, such as Ethoxy ethanol and Ethylene glycol are considered on a 3.7KW, water cooled, and kirloskar engine. The selected oxygenated compounds are blended with diesel fuel in proportions of 5% and 10% by volume and the experimental study is conducted to evaluate the performance and emissions of the diesel engine. The data obtained is compared with the conventional diesel fuel and the results reveal that Brake Thermal Efficiency (BTE) decreased with increase in the blend percentage. CO2, HC emissions decreased while NOX emissions increased. Majority of the world's energy needs are supplied through petro-chemical sources, coal and natural gases, with the exception of hydro-electricity and nuclear energy, all these sources are finite and as current usage rates will be consumed shortly. Out of these diesel fuels have an essential function in the industrial transports and agricultural goods due to its low cost and high thermal efficiency. Fossil fuels are the largest producer of CO2 emissions and the significant use of fossil fuels is thickening the CO2 blanket over the Earth. This blanket traps ultra-violet (UV) rays (which are essentially heat) that have been originally received by the Earth from the Sun. As the world is becoming more advanced in technology more energy is being used to keep up with the changing requirements. It is essential to improve the efficiency with the usage of natural resources, and develop renewable alternatives wherever possible to protect resources on which the current and future generations depend. The diesel industry is under increasing pressure worldwide to find methods to reduce particulate matter, NOx, smoke, HC and CO emissions. Approaches considered include engine modifications, fuel changes and exhaust after treatment methods. It is here where oxygenated diesel blends come into the picture as it is found that the use of these blends reduce the emissions considerably without affecting the efficiency of the engine used. Oxygenated diesel blends provide an effective way to reduce emissions from diesel engines, particularly smoke. Smoke or particulate matter emissions are mainly due to the lack of oxygen during the combustion process. (1, 2, 8) In addition to that a slight increase of bsfc is observed due to the slight decrease of fuel heating value with the increase of the oxygen content Brake thermal efficiency increased when the oxygen content was increased. (4)When taking into consideration the production potential of bio-diesel brake specific fuel consumption and NOx emissions the ratio of the biodiesel in the bio-diesel-diesel fuel blend should be kept at low ratio. (3) Relative to diesel fuel, SFC for blended fuel did not increase significantly at higher engine speeds. Diesel fuel contains no oxygen in its molecular structure. (5, 6) The only oxygen available for combustion is from the air taken during the suction process. Since oxygenated