The Effect of Fuel injection Pressure on Diesel Engine Performance

1989 ◽  
Author(s):  
Taizo Shimada ◽  
Takeshi Shoji ◽  
Yoshinaka Takeda
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
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.

scholarly journals Impacts of Blending Feed Stock Generated Biodiesel on Performance and Emission Parameters of Diesel Engine-Review

2020 ◽  
pp. 294-297
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Emission Characteristics ◽  
Exhaust Gas ◽  
Performance Parameters ◽  
Exhaust Gas Emission ◽  
Ci Engine ◽  
Fuel Injection Pressure

Alternative fuels are in demand to overcome limitations of fossil fuels since decades. Indian Standards of biodiesel exists and its wide application is appealed and a National Policy on Bio fuels was implemented by Ministry of New and Renewable Energy. This Paper presents a review of biodiesel, Indian standards and difference of ASTM/EN for biodiesel. Biodiesel and its different blend fuelled in Diesel engine exhibit different engine performance and exhaust gas emission characteristics. Various performance parameters affects compression ignition diesel engine (DI-CI) performance, list includes fuel injection pressure, fuel quantity injected and injection timing, shape of combustion chamber, position and size of injection nozzle hole, fuel spray pattern, etc. Few paramount factors governing DI-CI engine includes various types of biodiesel and its blending with diesel engine. Types of blending are namely mahua, jatropha, karanja, waste cooking oil etc. Authors have blended them with varying percentage with varying fuel injection pressure at different loads. Few have also used alumina as nano additives in mahua biodiesel (B25100Al2O3) to check it effects on performance parameters as well as on emission characteristics. Effect of blending with Karanja, Jatropha, Neem , mahua etc as biodiesel with inclusion of alumina as nano additives are reviewed for related performance parameters (i.e. brake thermal efficiency (BTE), brake specific fuel consumption (BSFC)) and emission characteristics (i.e. CO, HC, NOx) in exhaust gas emission in different conditions for DI-CI Engine performance.

scholarly journals Influence of Fuel Injection Pressure on the Emissions Characteristics and Engine Performance in a CRDI Diesel Engine Fueled with Palm Biodiesel Blends

Energies ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3837 ◽  
Author(s):  
Sam Ki Yoon ◽  
Jun Cong Ge ◽  
Nag Jung Choi
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fuel Injection ◽  
Injection Pressure ◽  
Biodiesel Fuel ◽  
Nox Emissions ◽  
Oxides Of Nitrogen ◽  
Fuel Blend ◽  
Engine Load ◽  
Fuel Injection Pressure

This experiment investigates the combustion and emissions characteristics of a common rail direct injection (CRDI) diesel engine using various blends of pure diesel fuel and palm biodiesel. Fuel injection pressures of 45 and 65 MPa were investigated under engine loads of 50 and 100 Nm. The fuels studied herein were pure diesel fuel 100 vol.% with 0 vol.% of palm biodiesel (PBD0), pure diesel fuel 80 vol.% blended with 20 vol.% of palm biodiesel (PBD20), and pure diesel fuel 50 vol.% blended with 50 vol.% of palm biodiesel (PBD50). As the fuel injection pressure increased from 45 to 65 MPa under all engine loads, the combustion pressure and heat release rate also increased. The indicated mean effective pressure (IMEP) increased with an increase of the fuel injection pressure. In addition, for 50 Nm of the engine load, an increase to the fuel injection pressure resulted in a reduction of the brake specific fuel consumption (BSFC) by an average of 2.43%. In comparison, for an engine load of 100 Nm, an increase in the fuel injection pressure decreased BSFC by an average of 0.8%. Hydrocarbon (HC) and particulate matter (PM) decreased as fuel pressure increased, independent of the engine load. Increasing fuel injection pressure for 50 Nm engine load using PBD0, PBD20 and PBD50 decreased carbon monoxide (CO) emissions. When the fuel injection pressure was increased from 45 MPa to 65 MPa, oxides of nitrogen (NOx) emissions were increased for both engine loads. For a given fuel injection pressure, NOx emissions increased slightly as the biodiesel content in the fuel blend increased.

The Effects of Fuel Injection Pressure and Fuel Type on the Combustion Characteristics of a Diesel Engine

2015 ◽  
Vol 137 (10) ◽  
Author(s):  
Jim Cowart ◽  
Dianne Luning Prak ◽  
Len Hamilton
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Injection Pressure ◽  
Common Rail ◽  
Injection System ◽  
Fuel Type ◽  
System Pressure ◽  
Delay Times ◽  
Fuel Injection Pressure ◽  
Physical And Chemical

In an effort to understand the effects of injection system pressure on alternative fuel performance, a single-cylinder diesel engine was outfit with a modern common rail fuel injection system and piezoelectric injector. As future new fuels will likely be used in both older mechanical injected engines as well as newer high pressure common rail engines, the question as to the sensitivity of a new fuel type across a range of engines is of concern. In this study, conventional diesel fuel (Navy NATO F76) was compared with the new Navy hydroprocessed renewable diesel (HRD) fuel from algal sources, as well as the high cetane reference fuel nC16 (n-hexadecane CN = 100). It was seen that, in general, ignition delay (IGD) was shortened for all fuels with increasing fuel injection pressure and was shortened with higher CN fuels. The combustion duration for all fuels was also significantly reduced with increasing fuel injection pressure, however, longer durations were seen for higher CN fuels at the same fuel pressure due to less premixing before the start of combustion. Companion modeling using the Lawrence Livermore National Lab (LLNL) heavy hydrocarbon and diesel primary reference fuel (PRF) chemical kinetic mechanisms for HRD and nC16 was applied to understand the relative importance of the physical and chemical delay periods of the IGD. It was seen that at low fuel injection pressures, the physical and chemical delay times are of comparable duration. However, as injection pressure increases the importance of the chemical delay times increases significantly (longer), especially with the lower CN fuel.

scholarly journals Analysis of Fuel Injection Pressure Effect on Diesel Engine Combustion Opacity Value

2020 ◽  
Vol 1 (1) ◽  
pp. 1-5
Author(s):  
Andi Firdaus Sudarma ◽  
Hadi Pranoto ◽  
Mardani A. Sera ◽  
Amiruddin Aziz
Keyword(s):  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Fuel Spray ◽  
Idle Speed ◽  
Injector Nozzle ◽  
Engine Combustion ◽  
Nozzle Pressure ◽  
Smoke Opacity ◽  
Fuel Injection Pressure

The use of diesel engines for vehicle applications has expanded for decades. However, it produces black smoke in the form of particulate matter contains fine and invisible particles during operation. The popular method for measuring the smoke opacity is by using a smoke meter for its simplicity and less costly. Fuel injection pressure is one of the parameters that affect the emission significantly, and the proper nozzle adjustment can reduce the density of exhaust gases and improve the engine performance. The purpose of this study is to determine the optimum fuel spray pressure that produces the lowest opacity value and analyse the effect of fuel spray pressure on the opacity value at a different engine speed. The present experiment uses the Hyundai D4BB engine, and the pressure variations were implemented on the injector nozzle at 125, 130, and 135 kg/cm2. The engine was also tested with various engine idle speed, i.e., 1000, 1500, 2000, and 2500 rpm. It has been found that the optimum distance of fuel spraying is 147.679 mm with injector nozzle pressure 130 kg/cm2, and the value of opacity is 9.51%.

scholarly journals Theoretical study to determine the proper injection system for upgrading fuel system of diesel engine om357 to common rail system

2018 ◽  
Vol 7 (4) ◽  
pp. 2594
Author(s):  
Razieh Pourdarbani ◽  
Ramin Aminfar
Keyword(s):  
Diesel Engine ◽  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Common Rail ◽  
Injection System ◽  
Injection Timing ◽  
Common Rail System ◽  
Common Rail Injection System ◽  
Multi Stage

In this research, we tried to investigate all the fuel injection systems of diesel engines in order to select the most suitable fuel injection system for the OM357 diesel engine to achieve the highest efficiency, maximize output torque and reduce emissions and even reduce fuel consumption. The prevailing strategy for this study was to investigate the effect of injection pressure changes, injection timing and multi-stage injection. By comparing the engines equipped with common rail injection system, the proposed injector for engine OM357 is solenoid, due to the cost of this type of injector, MAP and controller (ECU). It is clear that this will not be possible only with the optimization of the injection system, and so other systems that influence engine performance such as the engine's respiratory system and combustion chamber shape, etc. should also be optimized. 

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