نتایج جستجو برای: di diesel engine

تعداد نتایج: 336180  

2000
Yusuf Ali Milford A. Hanna Joseph E. Borg

A Cummins N14-410 diesel engine was operated on twelve fuels produced by blending methyl tailowate, methyl soyate and ethanol with No.2 diesel fuel. Engine incylinder pressure data were used to evaluate engine performance. Peak cylinder pressures for each fuel blend at all engine speeds were lower than peak pressure for diesel fuel with the exception of the 80 % diesel, 13 % methyl tallowate, a...

2013
Tapan K. Gogoi Ahmed Choudhury T. Talukdar

In this study, the performance of a single cylinder four stroke direct injection (DI) diesel engine is analyzed in the light of first law of thermodynamics. An energy balance study is carried out to quantify the various losses associated with diesel engine processes on the basis of experimental performance and emission data. The engine was fuelled with normal diesel and Jatropha Methyl Ester (J...

2000
F. Bedford C. Rutland

The effects of in-cylinder water injection on a direct injection (DI) Diesel engine were studied using a computational fluid dynamics (CFD) program based on the Kiva-3v code. The spray model is validated against experimental bomb data with good agreement for vapor penetration as a function of time. It was found that liquid penetration increased approximately 35% with 23% of the fuel volume repl...

2007
A. ARNOLD F. DINKELACKER

In this work we demonstrate that the progress of the combustion cycle in a four-cylinder (in-line) 1.9 1 direct injection Diesel engine can be studied effectively using different laser visualization techniques. Direct optical access to the piston bowl was facilitated by inserting quartz windows in one of the pistons. The flow field at the time of injection was characterized by seeding the flow ...

2012
DAVID P. LOWE TIAN RAN LIN WEILIANG WU ANDY C. C. TAN

This paper presents an experimental investigation into the detection of excessive diesel knock using acoustic emission (AE) signals. Three different dual-fuel diesel engine operating regimes were induced into a compression-ignition (diesel) engine operating on both straight diesel fuel and two different mixtures of fumigated ethanol and diesel. The experimentally induced engine operating regime...

2006
Xiaobing Pang Xiaoyan Shi Yujing Mu Hong He Shijin Shuai Hu Chen Rulong Li

Characteristics of carbonyl compounds (carbonyls) emissions from biodiesel–ethanol–diesel (BE–diesel) were investigated in a Commins-4B diesel engine and compared with those from fossil diesel. Acetaldehyde was the most abundant carbonyls in the exhaust, followed by formaldehyde, acetone, propionaldehyde and benzaldehyde. Apliphatic carbonyls emitted from BE–diesel were higher than those from d...

2012
RANBIR SINGH

Existing diesel engines are under stringent emission regulation particularly of smoke and particulate matter in their exhaust. Compressed Natural Gas and Diesel dual fuel operation is regarded as one of the best ways to control emissions from diesel engines and simultaneously saving petroleum based diesel fuel. Dual fuel engine is a conventional diesel engine which burn either gaseous fuel or d...

2010
S. K. Mahla

In diesel engines, it is difficult to reduce both smoke and NOx simultaneously. An experimental study was conducted to determine the performance and exhaust emission characteristics of a commercial single cylinder, natural aspirated, air cooled DI diesel engine. The system was modified to work on either dual fuel or diesel alone. The objective of this work is to investigate the possibility of d...

2014
Kai Yang Hongguang Zhang Songsong Song Jian Zhang Yuting Wu Yeqiang Zhang Hongjin Wang Ying Chang

To achieve energy saving and emission reduction for vehicle diesel engines, the organic Rankine cycle (ORC) was employed to recover waste heat from vehicle diesel engines, R245fa was used as ORC working fluid, and the resulting vehicle diesel engine-ORC combined system was presented. The variation law of engine exhaust energy rate under various operating conditions was obtained, and the running...

aIn the present study a 4-stroke 5hp diesel engine was tested with Diesel oil plus cottonseed oil blends. The blends in different proportions (10 to 50 percent by volume) were tested at constant speed of 1500 rpm. The said engine is operated at different loads and characteristics like Brake power, Brake thermal efficiency, specific fuel consumption etc. Engine performance for blends resulted in...

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