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首页> 外文期刊>Applied Engineering in Agriculture >PROPERTIES AND EMISSIONS FROM DIESEL BLENDED WITH SPENT GROUNDNUT OIL METHYL ESTER AS FUEL IN A COMPRESSION IGNITION ENGINE
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PROPERTIES AND EMISSIONS FROM DIESEL BLENDED WITH SPENT GROUNDNUT OIL METHYL ESTER AS FUEL IN A COMPRESSION IGNITION ENGINE

机译：柴火油化合物的性质和排放与花花体油甲酯作为压缩点火发动机的燃料混合

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摘要

Cheap renewable fuels are needed to replace fossil fuels to reduce greenhouse gas emissions that are causing global warming with the attendant negative consequences. The properties of blends of spent groundnut oil methyl ester (SGOME) and fossil diesel and the emissions from these blends as engine fuel were determined. Spent groundnut oil (SGO) was transesterified into SGOME using methanol and potassium hydroxide as catalyst. The SGOME was blended with fossil diesel and the properties determined and compared to fossil diesel (B0). The pure SGOME (B100) was blended with 90%, 80%, 70%, 60%, and 50% diesel to obtain the B10, B20, B30, B40, and B50 blends of biodiesel, respectively. The properties of the SGOME and the blends were determined according to ASTM and ROCS standards for biodiesel. The properties determined were flash point, carbon residue after combustion, pour and cloud points, kinematic and dynamic viscosities. The blends were used as fuel in a single cylinder 4-stroke water-cooled compression ignition engine that was coupled to a dynamometer from which the tail pipe emissions were measured using gas analyzers. The emissions were measured after the engine had reached a steady state at no load (0 kW) and 1 kW at 3 min interval for 15 min for each blend in 3 replicates. The greenhouse gas emissions measured were nitrogen oxide (NOx),hydrogen sulphide (H2S), particulate matter (PM), sulphur dioxide(SO2),and carbon monoxide (CO). The analysis of variance (ANOVA) at p = 0.05 was used to determine if there was significant difference in the amount of gas emitted from the various blend fuels. The FLSD was used to separate the means where there was significant difference. The higher blends of the SGOME had better flash point, pour point, and dynamic viscosity than the lower blends. However, the lower blends had better cloud point. The carbon residue after combustion of the SGOME blends was better than that of the fossil diesel. The NOx, PM, SO2, and CO emissions were significantly different from the various blends of the SGOME. However, the H2S emission was not significantly different. Loading the engine did not significantly affect the NOx, H2S, SO2, and CO emissions but significantly affected the PM emission. The PM, CO, and SO2 emissions were highest from the fossil diesel and the lower blends (B10, B20, and B30) and lowest from the higher blends (B40, B50, and B100) at both engine loads. The NOx emission was lowest from the fossil diesel and the lower blends. The use of B20 increased the NO x emission by 10% at both engine loads. The H2S emission was the same for the fossil diesel, pure SGOME (B100), and the blends (B10-B50) at both engine loads. The SGOME fuel reduced tail pipe emission of PM, CO, and SO2 by 26%, 45%, and 78%, respectively. The higher blends had a considerably lower amount of toxic emissions at both engine loads.
机译：需要廉价的可再生燃料来取代化石燃料，以减少导致全球变暖的温室气体排放与伴随的负面后果。确定了废物油油甲酯（SGOME）和化石柴油的混合物的性质以及这些混合物作为发动机燃料的排放。将磨料油（SgO）用甲醇和氢氧化钾作为催化剂酯交换到Sgome中。将Sgome与化石柴油混合，并与化石柴油（B0）相比并进行比较。将纯的SGOME（B100）与90％，80％，70％，60％和50％柴油混合，得到B10，B20，B30，B40和生物柴油的B50共混物。根据ASTM和Rocs标准的生物柴油测定SGOME和共混物的性质。测定的性质是闪点，燃烧后的碳残留物，倒入和浊点，运动和动态粘度。将混合物用作单缸4行程中的燃料中的燃料，其与测量尾管排放的测力计耦合到使用气体分析仪的测量器。在发动机在没有载荷（0 kW）的稳态达到稳定状态后测量排放，每间隔3分钟，每个混合物在3个重复中为15分钟。测量的温室气体排放是氮氧化物（NOx），硫化氢（H 2 S），颗粒物质（PM），二氧化硫（SO 2）和一氧化碳（CO）。 P＆ = 0.05的方差（ANOVA）分析用于确定各种共混燃料排放的气体量是否​​存在显着差异。 FLSD用于分离有显着差异的手段。 SGOME的较高共混物具有更好的闪点，倾点和动态粘度而不是下混合物。然而，下混合物具有更好的浊点。碳残余物在燃烧后的Sgome混合物比化石柴油的燃烧更好。 NOx，PM，SO2和CO排放与SGOME的各种共混物显着不同。然而，H2S排放并没有显着差异。装载发动机没有显着影响NOx，H2S，SO2和CO排放，而是显着影响PM发射。 PM，CO和SO2排放从化石柴油和下混合物（B10，B20和B30）最高，并且在两个发动机负载下从较高的共混物（B40，B50和B100）中最低。从化石柴油和较低的混合物中，NOx排放最低。 B20的使用在两个发动机负载下增加了10％的No x发射。对于化石柴油，纯SGOME（B100）和两个发动机负载的共混物（B10-B50）相同，H2S发射是相同的。 Sgome燃料将PM，CO和SO2的尾管发射减少26％，45％和78％。较高的混合物在两个发动机负载下具有相当大的毒性排放量。

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