The Research on Combustion and Emission Performance of Biodiesel - Diesel Blended Fuel

2014 ◽  
Vol 1030-1032 ◽  
pp. 1272-1277
Author(s):  
Yu Jie Hang ◽  
Cang Su Xu
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Output Power ◽  
Volume Ratio ◽  
Nox Emission ◽  
Smoke Emission ◽  
Emission Performance ◽  
External Characteristic ◽  
Soybean Biodiesel ◽  
Blended Fuel

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.

The Emission Performance Research and Analysis of Diesel Engine Fueled with Biodiesel Hybrid Fuel

2012 ◽  
Vol 610-613 ◽  
pp. 1501-1504
Author(s):  
Gui Fu Wu ◽  
Ji Yi Luan ◽  
Yuan Hua Jia ◽  
Dong Hua Jiang
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Load Condition ◽  
Biodiesel Fuel ◽  
Smoke Emission ◽  
Emission Performance ◽  
Full Load ◽  
Consumption Ratio ◽  
Performance Research

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%).

Effect of Fuel Injection Pressure & Fuel Supply Advance Angle on Characteristics of Butanol Diesel Blend Engine

2014 ◽  
Vol 1044-1045 ◽  
pp. 299-304
Author(s):  
Ming Wei Xiao ◽  
Jun Han Zhang ◽  
Ting Ting Chen
Keyword(s):  
Fuel Consumption ◽  
Fuel Injection ◽  
Volume Ratio ◽  
Injection Pressure ◽  
High Load ◽  
Nox Emission ◽  
Smoke Emission ◽  
Fuel Supply ◽  
Fuel Injection Pressure ◽  
Co Emission

The paper studied the effect of fuel injection pressure and fuel supply advance angle on characteristics of butanol diesel blend engine.First,the results shows that when the volume ratio of butanol diesel is constant ,the fuel consumption and HC emission are the least under 20°CA.With increase of fuel supply advance angle ,the exhaust smoke emission and CO emission decreased largely under high load, but NOX emission increased largely. When the fuel supply advance angle is constant ,with the increase of volume ratio of butanol diesel ,the fuel consumption increased gradually, the exhaust smoke emission decreased largely, HC emission increased clearly, CO emission decreased largely but NOX emission increased.Third,with increase of fuel injection pressure,the exhaust smoke emission decreased largely ,NOx emission changed a little ,CO and HC emission increased largely.

The Influence of New-Typed Oxygenated Fuel Blends on Combustion and Emission Performance for Diesel Engine

2010 ◽  
Vol 113-116 ◽  
pp. 1679-1683 ◽  
Author(s):  
Jin Rui Zhao ◽  
Yan Ping Cai ◽  
Yan Ping He ◽  
Li Mei Li
Keyword(s):  
Diesel Engine ◽  
Nox Emission ◽  
Smoke Emission ◽  
Fuel Blend ◽  
Fuel Blends ◽  
Auto Ignition ◽  
Oxygenated Fuel ◽  
Di Diesel Engine ◽  
Blended Fuel ◽  
Engine Dynamic

A new type of oxygenated fuel blend was designed, it was diesel-fuel mixed with 15%、25% n-butoxyether(NBE) in volume. The experiments were conducted on a TY1100 single cylinder DI diesel engine. When the diesel engine rotational speed was 1400r/min and 2000r/min，the effects of the oxygenated fuel blends on engine Combustion and emission characteristics were studied. Results of experiment show that NBE has good solubility in diesel. When the diesel engine without any modification fueled with 15% ~ 25% NBE-diesel blended fuel，in comparison to original diesel engine, the diesel engine dynamic changes little, auto-ignition period is delay, and the premix combustion period increases, while the diffusive combustion period and combustion duration decreases. At high load, the peak values of cylinder pressure, pressure increase rate decrease strongly, but at low load, the peak values decrease slightly. In the same operating condition, the diesel engine fueled with 15% ~ 25% NBE-diesel blended fuel, its smoke, CO, HC and NOx emission decreases with the increasing content of NBE, can significantly reduce the smoke emission and reduce CO、HC and NOx emissions in some extent. For the largest decline amplitude, smoke emission decreases to 75%, CO emission decreases to 56%, HC emission decreases to 76.9%, and NOx emission decreases slightly, it decreases 13.1%.

Optimization of Engine Efficiency for Diesel Engine Equipped With EGR-VGT and Aftertreatment Systems

2019 ◽  
Author(s):  
Kuo Yang ◽  
Pingen Chen
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Engines ◽  
Intrinsic Property ◽  
Nox Emission ◽  
Nox Emissions ◽  
Minimum Phase ◽  
Engine Efficiency ◽  
Simulation Results ◽  
Aftertreatment Systems

Abstract Engine efficiency improvement is very critical for medium to heavy-duty vehicles to reduce Diesel fuel consumption and enhance U.S. energy security. The tradeoff between engine efficiency and NOx emissions is an intrinsic property that prevents modern Diesel engines, which are generally equipped with exhaust gas recirculation (EGR) and variable geometry turbocharger (VGT), from achieving the optimal engine efficiency while meeting the stringent NOx emission standards. The addition of urea-based selective catalytic reduction (SCR) systems to modern Diesel engine aftertreatment systems alleviate the burden of NOx emission control on Diesel engines, which in return creates extra freedom for optimizing Diesel engine efficiency. This paper proposes two model-based approaches to locate the optimal operating point of EGR and VGT in the air-path loop to maximize the indicated efficiency of turbocharged diesel engine. Simulation results demonstrated that the engine brake specific fuel consumption (BSFC) can be reduced by up to 1.6% through optimization of EGR and VGT, compared to a baseline EGR-VGT control which considers both NOx emissions and engine efficiency on engine side. The overall equivalent BSFCs are 1.8% higher with optimized EGR and VGT control than with the baseline control. In addition, the influence of reducing EGR valve opening on the non-minimum phase behavior of the air path loop is also analyzed. Simulation results showed slightly stronger non-minimum phase behaviors when EGR is fully closed.

The Comparative Trail Research on the Performance of a Diesel Engine Fuelled with Diesel Fuel and Biodiesel/Diesel Blended Fuel

2011 ◽  
Vol 142 ◽  
pp. 103-106
Author(s):  
Wen Ming Cheng ◽  
Hui Xie ◽  
Gang Li
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Diesel Fuel ◽  
Thermal Efficiency ◽  
Specific Fuel Consumption ◽  
Brake Specific Fuel Consumption ◽  
Brake Thermal Efficiency ◽  
Series Of Experiments ◽  
Blended Fuel ◽  
Load Conditions

This paper discusses the brake specific fuel consumption and brake thermal efficiency of a diesel engine using cottonseed biodiesel blended with diesel fuel. A series of experiments were conducted for the various blends under varying load conditions at a speed of 1500 rpm and 2500 rpm and the results were compared with the neat diesel. From the results, it is found that the brake specific fuel consumption of cottonseed biodiesel is slightly higher than that of diesel fuel at different engine loads and speeds, with this increase being higher the higher the percentage of the biodiesel in the blend. And the brake thermal efficiency of cottonseed biodiesel is nearly similar to that of diesel fuel at different engine loads and speeds. From the investigation, it is concluded that cottonseed biodiesl can be directly used in diesel engines without any modifications, at least in small blending ratios.

scholarly journals Study on Emission and Performance of Diesel Engine Using Castor Biodiesel

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Md. Saiful Islam ◽  
Abu Saleh Ahmed ◽  
Aminul Islam ◽  
Sidek Abdul Aziz ◽  
Low Chyi Xian ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Fuel Consumption ◽  
Performance Test ◽  
Engine Performance ◽  
Specific Fuel Consumption ◽  
Smoke Emission ◽  
Suitable Alternative ◽  
Biodiesel Blend ◽  
And Performance ◽  
Emission And Performance

This paper presents the result of investigations carried out in studying the emission and performance of diesel engine using the castor biodiesel and its blend with diesel from 0% to 40% by volume. The acid-based catalyzed transesterification system was used to produce castor biodiesel and the highest yield of 82.5% was obtained under the optimized condition. The FTIR spectrum of castor biodiesel indicates the presence of C=O and C–O functional groups, which is due to the ester compound in biodiesel. The smoke emission test revealed that B40 (biodiesel blend with 40% biodiesel and 60% diesel) had the least black smoke compared to the conventional diesel. Diesel engine performance test indicated that the specific fuel consumption of biodiesel blend was increased sufficiently when the blending ratio was optimized. Thus, the reduction in exhaust emissions and reduction in brake-specific fuel consumption made the blends of caster seed oil (B20) a suitable alternative fuel for diesel and could help in controlling air pollution.

The Research on Emission Performance of Large Marine Diesel Engine Based on Performance Parameters Analysis

2014 ◽  
Vol 535 ◽  
pp. 149-152
Author(s):  
Hai Qiang Liu ◽  
Lin Lu ◽  
Zhong Jun Wang
Keyword(s):  
Diesel Engine ◽  
Parameter Analysis ◽  
Nox Emission ◽  
Control Mode ◽  
Marine Diesel Engine ◽  
Performance Parameters ◽  
Obvious Effect ◽  
Emission Performance ◽  
Marine Diesel ◽  
Parameters Analysis

For the large marine main propulsion diesel engine, before delivered to shipyards should be evaluated NOx emission. This paper proposed a method just by analyzing the related parameters to evaluate the emission of marine diesel engine. Based on the small bore marine main propulsion diesel engine, analyzed the variation of performance parameters, to evaluate the emission performance at the condition of different power/speed at CMCR point and electric control mode. And the analysis results show that, for the same main propulsion diesel engine, the power of CMCR point has no obvious effect on the NOx emission performance, while the electric mode has a certain effect on the NOx emission performance. Finally, shop testing ware carried out to measure the NOx emission at the above condition, and the testing results approved the analysis results, and the parameter analysis method can be used in the practice.

ANALYSIS OF OXYGENATED COMPONENT (BUTYL ETHER) AND EGR EFFECT ON A DIESEL ENGINE

2010 ◽  
Vol 24 (15n16) ◽  
pp. 2844-2849 ◽  
Author(s):  
SEUNG-HUN CHOI ◽  
YOUNG-TAIG OH
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Specific Energy Consumption ◽  
Engine Performance ◽  
Nox Emission ◽  
Exhaust Emission ◽  
Engine Fuel ◽  
Butyl Ether ◽  
Significant Difference ◽  
Blended Fuel

Potential possibility of the butyl ether (BE, oxygenates of di-ether group) was analyzed as an additives for a naturally aspirated direct injection diesel engine fuel. Engine performance and exhaust emission characteristics were analyzed by applying the commercial diesel fuel and oxygenates additives blended diesel fuels. Smoke emission decreased approximately 26% by applying the blended fuel (diesel fuel 80 vol-% + BE 20vol-%) at the engine speed of 25,000 rpm and with full engine load compared to the diesel fuel. There was none significant difference between the blended fuel and the diesel fuel on the power, torque, and brake specific energy consumption rate of the diesel engine. But, NOx emission from the blended fuel was higher than the commercial diesel fuel. As a counter plan, the EGR method was employed to reduce the NOx . Simultaneous reduction of the smoke and the NOx emission from the diesel engine was achieved by applying the BE blended fuel and the cooled EGR method.

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