Study on the Emission Properties of Biodiesel Fueled on Medium-Sized Diesel Engine under Steady Working Conditions

2012 ◽  
Vol 608-609 ◽  
pp. 275-280
Author(s):  
Yun Xue ◽  
Hongwei Liu ◽  
Wu Quan Liu

As a kind of renewable resource, biodiesel can relieve the shortage of oil resources. This paper tests the emission performance of biodiesel fueled on 4102ZL diesel engine and makes a contrastive analysis with the emissions of 0# diesel fuel. The test result shows improvement of varying degrees in the emission indexes of the engine fueled with B100 soybean biodiesel.

2012 ◽  
Vol 610-613 ◽  
pp. 1501-1504
Author(s):  
Gui Fu Wu ◽  
Ji Yi Luan ◽  
Yuan Hua Jia ◽  
Dong Hua Jiang

Biodiesel can be made from the esterification with plant or animal fat.It has been being paid more and more attention for its characteristics of non-sulphur, non-arene,higher hexadecane and biodegradablity and renewablity Biodiesel is similar to No.0 diesel in characteristics,so it can be applied to engines directly without changing the structure.This article shows the emission performance of diesel mixed with biodiesel fuel which in different proportion,and its CO, HC and smoking exhaust have been decreased greatly,then NOx increase slightly,while the fuel-consumption ratio remains stable(when on full load condition,5%, 15% and25% of hybrid fuel compared with pure diesel fuel,HC emission decreases by 15%,33.3% and 83.3%,and carbon smoke emission decreases by 16.25%,51.8% and 63.6%).


2021 ◽  
Vol 9 (2) ◽  
Author(s):  
Mohammed A. Fayad ◽  

Engine injection strategy and renewable fuel both can improve nitrogen oxides (NOX) and smoke/soot emissions in a common-rail compression ignition (CI) diesel engine. The effects of different postinjection (PI) timings (15, 30, and 45) after top dead center (aTDC) and injection pressures (550 and 650 bar) on pollutant emissions and smoke/soot emissions were investigated for combustion of a renewable fuel (soybean biodiesel). The results showed that the levels of carbon monoxide (CO), hydrocarbons (HCs), and NOX are reduced from the combustion of soybean biodiesel compared to the diesel fuel combustion for different injection strategy. Besides, NOX emission is clearly reduced with retarded PI timing, especially at 45°. It is found that the increasing injection pressure reduced gaseous emissions for both fuels. The combination between biodiesel fuel and injection strategy can provide meaningful improvements in pollutant emissions, as well as enhance the exhaust temperature compared to the diesel fuel. With biodiesel fueling, smoke/soot emissions were reduced from biodiesel combustion (by 19.7%) under different fuel injection timings and pressures rather than from the diesel fuel combustion (by 12.2%).


2014 ◽  
Vol 1030-1032 ◽  
pp. 1272-1277
Author(s):  
Yu Jie Hang ◽  
Cang Su Xu

According to the different volume ratios, soybean biodiesel is mixed with 0# diesel by 0%, 20%, 40%, 60% and 80%. These blends (B0, B20, B40, B60 and B80) are tested using Xinchai 490B diesel engine for their combustion and emission performance. It is concluded that output power first increases and then decreases as the volume ratio increases, while higher fuel consumption is presented. Meanwhile, smoke emission of B80 decreases remarkably up to 30.4% versus B0. NOX emission also increases slightly under engine external characteristic condition.


2020 ◽  
Vol 6 (11) ◽  
pp. 265-273
Author(s):  
Yuanyuan Shi ◽  
Xiaoxiao Niu ◽  
Xiangchen Zhang ◽  
Zhilei Wang

In the research and test of diesel engine, because the performance test of multi cylinder engine with different configuration needs to be replaced, and there is a certain risk in the first test, while the single cylinder engine is more suitable for the research and test of different configurations because of its simple structure and convenient replacement of components. Therefore, by comparing the differences of combustion state between single cylinder engine and multi cylinder engine with the same configuration, the change law of performance characteristics of single cylinder engine and multi cylinder engine under different working conditions is confirmed. By analyzing the difference of emission performance of single cylinder engine with different configuration, the emission performance of multi cylinder engine under different configuration is predicted. The research in this paper has important significance for further research and test of diesel engine.


2013 ◽  
Vol 385-386 ◽  
pp. 1045-1048
Author(s):  
An Kang Wu ◽  
Hua Zhu ◽  
Ke Jiu Lu

The test on the influence of changing fuel supply advance angle on fuel economy was carried out on single cylinder diesel engineseparately using diesel fuel and ethanoldiesel blend fue1. The test result shows that the influence is more sensible when the ethanoldiese1 blend rue1 is used, and it is beneficial for increasing the fuel economy to reduce suitably fuel supply advance angle.


2019 ◽  
Vol 26 (1) ◽  
pp. 153-161 ◽  
Author(s):  
Zhiyuan Yang ◽  
Qinming Tan ◽  
Peng Geng

Abstract With the implementation and expansion of international sulfur emission control areas, effectively promoted the marine low sulfur diesel fuel (MLSDF) used in marine diesel engines. In this study, a large low-speed, two-stroke, cross-head, common rail, electronic fuel injection marine diesel engine (B&W 6S35ME-B9) was used for the study. According to diesel engine’s propulsion characteristics, experiments were launched respectively at 25%, 50%, 75%, 100% load working conditions with marine low sulfur diesel fuel to analyze the fuel consumption, combustion characteristics and emissions (NOx, CO2, CO, HC) characteristics. The results showed that: Marine diesel engine usually took fuel injection after top dead center to ensure their safety control NOx emission. From 25% to 75% load working condition, engine’s combustion timing gradually moved forward and the inflection points of pressure curve after top dead center also followed forward. While it is necessary to control pressure and reduce NOx emission by delaying fuel injection timing at 100% load. Engine’s in-cylinder pressure, temperature, and cumulative heat release were increased with load increasing. Engine’s CO2 and HC emissions were significantly reduced from 25% to 75% load, while they were increased slightly at 100% load. Moreover, the fuel consumption rate had a similar variation and the lowest was only 178 g/kW·h at 75% load of the test engine with MLSDF. HC or CO emissions at four tests’ working conditions were below 1.23 g/kW·h and the maximum difference was 0.2 or 0.4 g/kW·h respectively, which meant that combustion efficiency of the test engine with MLSDF is good. Although the proportion of NOx in exhaust gas increased with engine’s load increasing, but NOx emissions were always between 12.5 and 13.0 g/kW·h, which was less than 14.4 g/kW·h. Thus, the test engine had good emissions performance with MLSDF, which could meet current emission requirements of the International Maritime Organization.


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