Effect of fuel injection pressure and injection timing of Karanja biodiesel blends on fuel spray, engine performance, emissions and combustion characteristics

2015 ◽  
Vol 91 ◽  
pp. 302-314 ◽  
Author(s):  
Avinash Kumar Agarwal ◽  
Atul Dhar ◽  
Jai Gopal Gupta ◽  
Woong Il Kim ◽  
Kibong Choi ◽  
...  
Keyword(s):  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Combustion Characteristics ◽  
Fuel Spray ◽  
Injection Timing ◽  
Biodiesel Blends ◽  
Fuel Injection Pressure

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%.

Effect of process parameters on the diesel engine performance fuelled with Prosopis juliflora biodiesel response surface methodology approach

2021 ◽  
pp. 095440892110430
Author(s):  
Abhishek Sharma ◽  
Avdhesh Tyagi ◽  
Yashvir Singh ◽  
Nishant K Singh ◽  
Navneet K Pandey
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Fuel Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Prosopis Juliflora ◽  
Injection Timing ◽  
Gas Temperature ◽  
Input Parameters ◽  
Fuel Injection Pressure

The rapid consumption of crude oil and resulting pollution are very severe problems in modern energy sectors. To meet these global problems, biodiesels obtained from non-edible plants can play a very crucial role. Keeping this idea in mind the present study focuses on making some efforts for the best utilization of innovative blends of Prosopis juliflora biodiesel in the operation of diesel engines. Four engine input parameters viz. fuel injection pressure (16–24 MPa), P. Juliflora biodiesel blends (0–10%), shaft loads (20–100%) and injection timing (15–31°bTDC (before top dead centre)) are selected for optimization process. The experiments were executed in accordance with response surface methodology. The results of the experiments revealed that the optimum combination for engine input parameters were at fuel injection timing 30°bTDC, fuel injection pressure 22 MPa, 4% P. juliflora biodiesel blending at 59% of engine load to achieve best performance. The individual desirability of brake thermal efficiency, brake specific fuel consumption, exhaust gas temperature and peak cylinder pressure were found to be 0.888, 0.949, 0.624 and 0.749, respectively, and the composite desirability of engine responses was found to be 0.7923 which makes the results acceptable.

Distribution of Two-Stage Direct Injection CNG-Air Mixture near Lean Limit Using CFD

2013 ◽  
Vol 465-466 ◽  
pp. 448-452
Author(s):  
Mas Fawzi ◽  
Bukhari Manshoor ◽  
Yoshiyuki Kidoguchi ◽  
Yuzuru Nada
Keyword(s):  
Fuel Injection ◽  
Direct Injection ◽  
Engine Performance ◽  
Injection Pressure ◽  
Gas Jet ◽  
Exhaust Emission ◽  
Injection Technique ◽  
Injection Timing ◽  
Two Stage ◽  
Lean Burn

Previous work shows that gas-jet ignition with two-stage injection technique is effective to extend lean combustible ranges of CNG engines. In this report, the robustness of the gas-jet ignition with two-stage injection method was investigated purposely to improve the performance of a lean burn direct injection CNG engine. The experiment was conducted using an engine at speed of 900 rpm, fuel-injection-pressure of 3MPa, equivalence ratio at 0.8, and ignition timing at top dead center. The effect of first injection timing on the test engine performance and exhaust emission was analyzed. First injection timings near the gas-jet ignition produced unstable combustion with occurrence of misfires except at a timing which produced distinctively good combustion with low HC and CO emissions. Computational fluid dynamics was used to provide hindsight of the fuel-air mixture distribution that might be the cause of misfires occurrence at certain injection timings.

Effects of Fuel Injection Pressure on Spray Characteristics and Vaporization Characteristics of Diesel Fuel Spray

2016 ◽  
Vol 2016 (0) ◽  
pp. G0700102
Author(s):  
Shun SHIMOTSUMAGARI ◽  
Takeru IWAMOTO ◽  
Masaoki SUGIHARA ◽  
Hideki HASHIMOTO ◽  
Osamu MORIUE
Keyword(s):  
Diesel Fuel ◽  
Fuel Injection ◽  
Injection Pressure ◽  
Fuel Spray ◽  
Spray Characteristics ◽  
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.

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