Reduction of Soot Formation in an Optical Single-Cylinder Gasoline Direct-Injected Engine Operated in Stratified Mode Using 350 Bar Fuel Injection Pressure, Dual-Coil and High-Frequency Ignition Systems

2017 ◽  
Vol 10 (3) ◽  
pp. 709-721 ◽  
Author(s):  
Anders N. Johansson ◽  
Stina Hemdal ◽  
Petter Dahlander
Keyword(s):  
High Frequency ◽  
Fuel Injection ◽  
Soot Formation ◽  
Injection Pressure ◽  
Single Cylinder ◽  
Fuel Injection Pressure

Effects of Different Biodiesel Blends on Heat Release and Its Related Parameters

2006 ◽  
Author(s):  
Girish Parvate-Patil ◽  
Manuel Vasquez ◽  
Malcolm Payne
Keyword(s):  
Diesel Engine ◽  
Heat Release ◽  
Fuel Injection ◽  
Load Condition ◽  
Engine Performance ◽  
Injection Pressure ◽  
Single Cylinder ◽  
Medium Speed ◽  
Performance And Emissions ◽  
Fuel Injection Pressure

This paper emphasizes on the effects of different biodiesels and diesel on; heat release, ignition delay, endothermic and exothermic reactions, NOx, fuel injection pressure due to the fuel’s modulus of elasticity and cylinder pressure. Two 100% biodiesel and its blends of 20% with of low sulfur #2 diesel, and #2 diesel are tested on a single cylinder diesel engine under full load condition. Engine performance and emissions data is obtained for 100% and 20% biodiesels blends and #2 diesel. Testes were conducted at Engine Systems Development Centre, Inc. (ESDC) to evaluate the effects of biodiesel and its blends on the performance and emissions of a single-cylinder medium-speed diesel engine. The main objective of this work was to gain initial information and experience about biodiesel for railway application based on which biodiesel and its blends could be recommended for further investigation on actual locomotives.

Effect of fuel injection pressure on diesel particulate size and number distribution in a CRDI single cylinder research engine

Fuel ◽  
2013 ◽  
Vol 107 ◽  
pp. 84-89 ◽  
Author(s):  
Avinash Kumar Agarwal ◽  
Atul Dhar ◽  
Dhananjay Kumar Srivastava ◽  
Rakesh Kumar Maurya ◽  
Akhilendra Pratap Singh
Keyword(s):  
Fuel Injection ◽  
Injection Pressure ◽  
Diesel Particulate ◽  
Single Cylinder ◽  
Number Distribution ◽  
Particulate Size ◽  
Fuel Injection Pressure

scholarly journals Effects of Fuel Injection Pressure on Combustion and Emission Characteristics under Low Speed Conditions in a Diesel Engine Fueled with Palm Oil Biodiesel

Energies ◽  
2019 ◽  
Vol 12 (17) ◽  
pp. 3264 ◽  
Author(s):  
Ho Young Kim ◽  
Jun Cong Ge ◽  
Nag Jung Choi
Keyword(s):  
Diesel Engine ◽  
Palm Oil ◽  
Engine Speed ◽  
Fuel Injection ◽  
Soot Formation ◽  
Injection Pressure ◽  
Combustion Efficiency ◽  
Emission Characteristics ◽  
Fuel Injection Pressure ◽  
Palm Oil Biodiesel

In this study, the effect of injection pressure on combustion and emission characteristics was evaluated on a common rail direct injection diesel engine fueled with palm oil biodiesel. Recently, many studies have been conducted to utilize biodiesel produced from various sources to prevent environmental pollution and the depletion of petroleum resources. The oxygen content and high cetane number of biodiesel can reduce the production of exhaust pollutants by improving the combustion, but its high viscosity deteriorates the atomization of the injected fuel. Particularly at low engine speed conditions like idle, poor atomization and low airflow in the cylinder deteriorates the combustion efficiency. Increasing the fuel injection pressure is one of the effective methods to improve the atomization of biodiesel without mechanical modification of the current diesel engine. In this study, combustion characteristics and emission levels of pollutants were measured by varying the fuel injection pressure applying palm oil biodiesel. As a result, it was confirmed that increasing the injection pressure to apply palm oil biodiesel at low engine speed can reduce ignition delay and improve combustion efficiency so that nitrogen oxides (NOx) is increased but soot formation is reduced. Carbon monoxide (CO) and hydrocarbon (HC) are slightly reduced but these are increased again when using 100% palm oil biodiesel. The increased NOx due to increased injection pressure can be reduced by applying exhaust gas recirculation (EGR).

Sign in / Sign up

Export Citation Format

Share Document