Overview of EGR, Injection Timing and Pressure on Emissions and Performance of CI Engine with Pongamia Methyl Ester

2005 ◽  
Author(s):  
J G Suryawanshi ◽  
N V Deshpande
Keyword(s):  
Methyl Ester ◽  
Injection Timing ◽  
Ci Engine ◽  
And Performance ◽  
Emissions And Performance ◽  
Pongamia Methyl Ester

Influence on emissions and performance of CI engine with graphene nanoparticles blended with Karanja biodiesel

2021 ◽  
Author(s):  
Jayashri Nair ◽  
Putha Prasad Kumar ◽  
Amit Kumar Thakur ◽  
Samhita ◽  
Aravinda
Keyword(s):  
Ci Engine ◽  
Graphene Nanoparticles ◽  
And Performance ◽  
Emissions And Performance

An Experimental Investigation of the Effects of Common-Rail Injection System Parameters on Emissions and Performance in a High-Speed Direct-Injection Diesel Engine

1999 ◽  
Vol 123 (1) ◽  
pp. 167-174 ◽  
Author(s):  
P. J. Tennison ◽  
R. Reitz
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Direct Injection ◽  
Injection Pressure ◽  
Injection System ◽  
Injection Timing ◽  
Pilot Injection ◽  
Common Rail Injection System ◽  
And Performance ◽  
Emissions And Performance

An investigation of the effect of injection parameters on emissions and performance in an automotive diesel engine was conducted. A high-pressure common-rail injection system was used with a dual-guided valve covered orifice nozzle tip. The engine was a four-valve single cylinder high-speed direct-injection diesel engine with a displacement of approximately 12 liter and simulated turbocharging. The engine experiments were conducted at full load and 1004 and 1757 rev/min, and the effects of injection pressure, multiple injections (single vs pilot with main), and pilot injection timing on emissions and performance were studied. Increasing the injection pressure from 600 to 800 bar reduced the smoke emissions by over 50 percent at retarded injection timings with no penalty in oxides of nitrogen NOx or brake specific fuel consumption (BSFC). Pilot injection cases exhibited slightly higher smoke levels than single injection cases but had similar NOx levels, while the single injection cases exhibited slightly better BSFC. The start-of-injection (SOI) of the pilot was varied while holding the main SOI constant and the effect on emissions was found to be small compared to changes resulting from varying the main injection timing. Interestingly, the point of autoignition of the pilot was found to occur at a nearly constant crank angle regardless of pilot injection timing (for early injection timings) indicating that the ignition delay of the pilot is a chemical delay and not a physical (mixing) one. As the pilot timing was advanced the mixture became overmixed, and an increase of over 50 percent in the unburned hydrocarbon emissions was observed at the most advanced pilot injection timing.

Effects of hydrogen and methane addition on combustion characteristics, emissions, and performance of a CI engine

2016 ◽  
Vol 41 (2) ◽  
pp. 1313-1325 ◽  
Author(s):  
Yasin Karagöz ◽  
İlker Güler ◽  
Tarkan Sandalcı ◽  
Levent Yüksek ◽  
Ahmet Selim Dalkılıç ◽  
...  
Keyword(s):  
Combustion Characteristics ◽  
Ci Engine ◽  
And Performance ◽  
Emissions And Performance

Influence of injection timing and exhaust gas recirculation of a Calophyllum inophyllum methyl ester fuelled CI engine

2017 ◽  
Vol 167 ◽  
pp. 18-30 ◽  
Author(s):  
B. Ashok ◽  
K. Nanthagopal ◽  
R. Thundil Karuppa Raj ◽  
J. Pradeep Bhasker ◽  
D. Sakthi Vignesh
Keyword(s):  
Methyl Ester ◽  
Exhaust Gas Recirculation ◽  
Injection Timing ◽  
Exhaust Gas ◽  
Calophyllum Inophyllum ◽  
Ci Engine ◽  
Gas Recirculation

Influence of Cotton Seed Oil over The Ignition Delay, Emissions and Performance of A Ci Engine

2021 ◽  
Vol 23 (04) ◽  
pp. 174-179
Author(s):  
◽  
G. Bhanodaya Reddy ◽  
B. Narayana Reddy ◽  
◽  
Keyword(s):  
Seed Oil ◽  
Cottonseed Oil ◽  
Petroleum Products ◽  
Compression Ignition ◽  
Compression Ignition Engine ◽  
Brake Power ◽  
The World ◽  
Ci Engine ◽  
And Performance ◽  
Emissions And Performance

Rising petroleum derivative costs and ecological contamination with their utilization have brought expanded worldwide interest in biodiesel creation and use. The journey for bio-energy in this manner has been supported all through the world to care for the climate and substitute bio-diesel with petroleum products. The goal is to assess the seed oil of cotton and to utilize it as an elective fuel. Cottonseed oil has diesel-like fuel properties. Cottonseed oil is blended in with diesel in various extents viz 5%, 10%, 15%, 20%, and 25% experimented in a compression ignition engine. Bio-diesel is generated from cottonseed through a compound interaction called transesterification. With the petrol energizes right now known and their expanding interest for utilization, it is expected that they won't keep going long. By examination, the exhibition w known and their expanding interest for utilization, it is expected that they won't keep going long. By examination, the exhibition attributes give off an impression of being improved with the utilization of cottonseed oil for brake power, CO, HC, NO and NOx emissions.

Injection Timing Variation and its Influence on the Performance and Combustion Characteristics on a Direct Injection CI Engine

2018 ◽  
Vol 10 (1) ◽  
Author(s):  
V. Hariram ◽  
S. Seralathan ◽  
M. Rajasekaran ◽  
G. John
Keyword(s):  
Direct Injection ◽  
Pressure Rise ◽  
Engine Performance ◽  
Injection Pressure ◽  
Injection Timing ◽  
Gas Temperature ◽  
Optimum Parameters ◽  
Rate Of Heat Release ◽  
Ci Engine ◽  
And Performance

The present experimental investigation aims at improving the combustion and performance parameters by varying the injection timing. A 3.5 kW single cylinder stationary CI engine equipped with eddy current dynamometer is used in this investigation. The static injection timing is varied using spill method by an advancement and retirement of 2 CAD with respect to standard injection timing of 23 BTDC. On comparison with the standard injection timing, the brake thermal efficiency, cylinder pressure, rate of heat release, mean gas temperature and rate of pressure rise are found to increase along with a significant decrease in brake specific fuel consumption for an advanced injection timing of 21 BTDC. Negative improvement is observed with respect to retarded injection timing of 25 BTDC. Optimum parameters for enhanced engine performance is found to be 21 BTDC injection timing with a 200 bar injection pressure at rated speed.

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