scholarly journals A Comparative Study on Energy and Exergy Analyses of a CI Engine Performed with Different Multiple Injection Strategies at Part Load: Effect of Injection Pressure

Entropy ◽  
2015 ◽  
Vol 17 (1) ◽  
pp. 244-263 ◽  
Author(s):  
Muammer Özkan
Keyword(s):  
Comparative Study ◽  
Injection Pressure ◽  
Multiple Injection ◽  
Load Effect ◽  
Part Load ◽  
Energy And Exergy ◽  
Ci Engine ◽  
Exergy Analyses ◽  
Injection Strategies

Experimental study on energy and exergy analyses of a diesel engine performed with multiple injection strategies: Effect of pre-injection timing

2013 ◽  
Vol 53 (1) ◽  
pp. 21-30 ◽  
Author(s):  
Muammer Özkan ◽  
Derya Burcu Özkan ◽  
Orkun Özener ◽  
Hasan Yılmaz
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Injection Timing ◽  
Multiple Injection ◽  
Energy And Exergy ◽  
Exergy Analyses ◽  
Injection Strategies

Low End Performance Improvement by Effective Use of Multiple Injection Strategy in Common Rail Diesel Engine

2009 ◽  
Author(s):  
Dilunath Hareendranath ◽  
Nilesh Gajarlawar ◽  
Murali Manickam ◽  
Ghodke Pundlik
Keyword(s):  
Diesel Engine ◽  
Engine Speed ◽  
Injection Pressure ◽  
Common Rail ◽  
Multiple Injection ◽  
Injection Strategy ◽  
Part Load ◽  
Black Smoke ◽  
Multiple Injection Strategy ◽  
Lower Engine Speed

Main advantages of diesel engine are low fuel consumption coupled with high specific power output. However, benchmark Noise, Vibration and Harshness (NVH) of its counterpart (Gasoline), future stringent emission norms and overall system cost poses tough challenges. In a growing market like India, these benefits of diesel attract the buyer over its counterpart. Diesel engines are known for its heavy visible black smoke. The black smoke formation is more prominent in lower engine speed. This is due to lower injection pressure and the system limitation in conventional injection system and less air availability. Introduction of the common rail injection technology overcomes this difficulty by allowing the injection pressure to build irrespective of the engine speed. However, improving the air flow is a challenge. Generally waste gate turbo chargers are optimized for higher engine speed to match the rated engine performance, but compromising the lower engine speed performance. The use of Variable Geometry turbo charging (VGT), increase in number of valves per cylinder, two stage turbo charging are some of the solutions to this problem but it involves additional cost and fundamental design changes. Hence, it was a challenge to come up with a strategy to overcome this problem without any cost impact. Multiple injection strategy is one of the tools which improve the engine torque without the penalty of smoke. In this paper, a Multi Utility Vehicle (MUV) powered by a 2.5Ldiesel common rail engine, low end performance was effectively improved by this strategy. Current engine has BOSCH 2nd generation common rail system with waste gate Turbocharger. Torque at full load in lower engine speed was improved by introducing the early pilot with relatively higher quantity. However, in the part load, this pilot quantity was split into two successive pilot injections. Selection of pilot separation was optimized in such a way that Noise and Smoke levels are maintained or improved. In part load, improvement in smoke and BSFC was achieved without sacrificing noise level. Engine level trials were conducted with cylinder pressure and Noise Measurement with AVL Indicom. The Concept of Design of experiment (DOE) was used to minimize the number of iteration and for analysis of results. The vehicle performance, pass by noise were found to be improved.

scholarly journals Application of Energy and Exergy Analyses to a CI Engine Using Biodiesel Fuel

2011 ◽  
Vol 16 (4) ◽  
pp. 797-808 ◽  
Author(s):  
Perihan Sekmen ◽  
Zeki Yılbaşı
Keyword(s):  
Biodiesel Fuel ◽  
Energy And Exergy ◽  
Ci Engine ◽  
Exergy Analyses

Energy and exergy analyses of a CI engine fuelled with palm biodiesel based on experimental data

2013 ◽  
Vol 13 (1) ◽  
pp. 124 ◽  
Author(s):  
Rahul Dev Misra ◽  
Jibanananda Jena ◽  
M.S. Murthy
Keyword(s):  
Experimental Data ◽  
Energy And Exergy ◽  
Ci Engine ◽  
Exergy Analyses

Multiple Injection Strategies for Improved Combustion Stability under Stratified Part Load Conditions in a Spray Guided Gasoline Direct Injection (SGDI) Engine

2011 ◽  
Author(s):  
Lars Schmidt ◽  
Justin Seabrook ◽  
John Stokes ◽  
Mohd Faizan Ahmad Zuhdi ◽  
Steven Begg ◽  
...  
Keyword(s):  
Direct Injection ◽  
Gasoline Direct Injection ◽  
Combustion Stability ◽  
Multiple Injection ◽  
Part Load ◽  
Load Conditions ◽  
Injection Strategies

Comparative study on single-injection and pilot-injection strategies for DI CI engine fuelled with the butanol/diesel blend

2018 ◽  
Vol 41 (11) ◽  
pp. 1227-1234 ◽  
Author(s):  
Siva Prasad Kattela ◽  
S. Srinivasa Rao ◽  
V. R. K. Raju
Keyword(s):  
Comparative Study ◽  
Single Injection ◽  
Pilot Injection ◽  
Ci Engine ◽  
Injection Strategies

Energy and exergy analyses of solid oxide fuel cell-gas turbine hybrid systems fed by different renewable biofuels: A comparative study

2021 ◽  
Vol 280 ◽  
pp. 124383 ◽  
Author(s):  
Milad Beigzadeh ◽  
Fathollah Pourfayaz ◽  
Mahyar Ghazvini ◽  
Mohammad H. Ahmadi
Keyword(s):  
Fuel Cell ◽  
Comparative Study ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Hybrid Systems ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Energy And Exergy ◽  
Exergy Analyses

Energy and exergy analyses of a novel sulfur–iodine cycle assembled with HI–I2–H2O electrolysis for hydrogen production

2021 ◽  
Author(s):  
Zhi Ying ◽  
Jingyang Yang ◽  
Xiaoyuan Zheng ◽  
Yabin Wang ◽  
Binlin Dou
Keyword(s):  
Hydrogen Production ◽  
Energy And Exergy ◽  
Exergy Analyses
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