Effect of High Levels of Boost and Recirculated Exhaust Gas on Diesel Combustion Characteristics at Part Load

2014 ◽  
Author(s):  
Venkatesh Gopalakrishnan ◽  
Alberto Vassallo ◽  
Richard C. Peterson ◽  
Joaquin De la Morena
Keyword(s):  
Combustion Characteristics ◽  
Exhaust Gas ◽  
Diesel Combustion ◽  
Part Load

Analysis of Mixture Formation and Flame Development of Diesel Combustion Using a Rapid Compression Machine and Optical Visualization Technique

2013 ◽  
Vol 315 ◽  
pp. 293-298 ◽  
Author(s):  
Amir Khalid ◽  
Bukhari Manshoor
Keyword(s):  
Fuel Injection ◽  
Injection Pressure ◽  
Exhaust Emissions ◽  
Combustion Characteristics ◽  
Diesel Combustion ◽  
Rapid Compression Machine ◽  
Mixture Formation ◽  
Optical Visualization ◽  
Flame Development ◽  
Rapid Compression

Mixture formation plays as a key element on burning process that strongly affects the exhaust emissions such as nitrogen oxide (NOx) and Particulate Matter (PM). The reductions of emissions can be achieved with improvement throughout the mixing of fuel and air behavior. Measurements were made in an optically-accessible rapid compression machine (RCM) with intended to simulate the actual diesel combustion related phenomena. The diesel combustion was simulated with the RCM which is equipped with the Denso single-shot common-rail fuel injection system, capable of a maximum injection pressure up to 160MPa. Diesel engine compression process could be reproduced within the wide range of ambient temperature, ambient density, swirl velocity, equivalence ratio and fuel injection pressure. The mixture formation and combustion images were captured by the high speed camera. Analysis of combustion characteristics and observations of optical visualization of images reveal that the mixture formation exhibit influences to the ignition process and flame development. Therefore, the examination of the first stage of mixture formation is very important consideration due to the fuel-air premixing process linked with the combustion characteristics. Furthermore, the observation of a systematic control of mixture formation with experimental apparatus enables us to achieve considerable improvements of combustion process and would present the information for fundamental understanding in terms of reduced fuel consumption and exhaust emissions.

In-cylinder stratification of external exhaust gas recirculation for controlling diesel combustion

2009 ◽  
Vol 11 (1) ◽  
pp. 1-15 ◽  
Author(s):  
T Fuyuto ◽  
M Nagata ◽  
Y Hotta ◽  
K Inagaki ◽  
K Nakakita ◽  
...  
Keyword(s):  
Exhaust Gas Recirculation ◽  
Exhaust Gas ◽  
Diesel Combustion ◽  
Gas Recirculation

Emission Characteristics of Water in Diesel Nanoemulsions in Diesel Engine

2013 ◽  
Vol 832 ◽  
pp. 248-253
Author(s):  
B.S. Bidita ◽  
Suraya Abdul Rashid ◽  
Azni B. Idris ◽  
Mohamad Amran Mohd Salleh
Keyword(s):  
Alternative Fuels ◽  
Combustion Engine ◽  
High Energy ◽  
Combustion Characteristics ◽  
Exhaust Emission ◽  
Exhaust Gas ◽  
Test Bed ◽  
Environmental Aspects ◽  
Wide Range ◽  
Exhaust Gas Emissions

Nanoemulsions are a class of nanomaterials which play an increasingly important role in commercial and environmental aspects. Water-in-diesel (W/D) nanoemulsion is considered one of the environmental friendly alternative fuels for reducing the emission pollution of internal combustion engine such as diesel engines. In this context, a study has been made to evaluate the combustion characteristics of W/D nanoemulsion fuel. A wide range of surfactant concentration (0.25% to 0.40% v/v) with varying amount of water percentage (0.5% to 0.8% v/v) was used in the preparation of W/D nanoemulsion fuel. The high energy emulsification method was applied to prepare W/D nanoemulsions. The combustion characteristics of W/D nanoemulsions are presented in terms of different formulating compositions. An engine test bed was used to combust the W/D nanoemulsions for measuring the exhaust emission concentrations such as CO, CO2 and NH3. A reduction in the concentrations of exhaust gas emissions was notified.

Diesel Combustion Characteristics of Biodiesel with 1-Butanol

2011 ◽  
Author(s):  
Eiji Kinoshita ◽  
Kazunori Hamasaki ◽  
Ryota Imabayashi
Keyword(s):  
Combustion Characteristics ◽  
Diesel Combustion
Sign in / Sign up

Export Citation Format

Share Document