نتایج جستجو برای: diesel engines

تعداد نتایج: 38031  

2014
Michael Fiebig Andreas Wiartalla Bastian Holderbaum Sebastian Kiesow

In the last 30 years, diesel engines have made rapid progress to increased efficiency, environmental protection and comfort for both light- and heavy-duty applications. The technical developments include all issues from fuel to combustion process to exhaust gas aftertreatment. This paper provides a comprehensive summary of the available literature regarding technical developments and their impa...

2013
S. H. Hashemi Fard Dehkordi M. Almassi A. M. Borghei B. Beheshti

The use of bio-ethanol as an alternative diesel engine fuel is increasing rapidly. Bioethanol is mixed with diesel fuel in different ratios and used in CI and SI engines. Vibrations have direct effects on engine components and users when the engine is operated on a vehicle. For this reason, analysis of vibration resulting from combustion in IC engines is very important. In this study, evaluatio...

2014
R. Praveen S. Natarajan

Nowadays exhaust emission control from internal combustion engines have become one of the most important challenges. Oxides of nitrogen (NO [email protected] x) are one of the major hazardous pollutants that come out from diesel engines. There are various techniques existing for NOx control but each techniques has its own advantages and disadvantages. Technologies available for NOx reductions e...

2010
Hsun-Heng Tsai Chyuan-Yow Tseng

The diesel engine is the main power source for most agricultural vehicles. The control of diesel engine emissions is an important global issue. Fuel injection control systems directly affect fuel efficiency and emissions of diesel engines. Deterioration faults, such as rack deformation, solenoid valve failure, and rack-travel sensor malfunction, are possibly in the fuel injection module of elec...

Journal: :journal of agricultural science and technology 2010
b. ghobadian h. rahimi t. tavakkoli hashjin m. khatamifar

biofuels are the main substitute to fossil fuels. these fuels are less polluting in compari-son to fossil fuels and can be produced from agricultural material residues for use in die-sel engines. in this research work bioethanol was produced from potato waste. it was de-hydrated in a vapor phase using 3a zeolite and was used in combination with sunflower methyl ester oil and diesel fuel blendin...

2012
S. Gowthaman S. GOWTHAMAN K. VELMURUGAN

In this study, the biodiesel produced from cottonseed oil was prepared by a method of Transesterification and its blends of 25%, 50%, 75% and 100% in volume, and standard diesel fuel separately. The effects of biodiesel addition to diesel fuel on the performance, emissions and combustion characteristics of a naturally aspirated DI compression ignition engine were examined. Biodiesel has differe...

2013
S. N. Chaudhuri D. Dutta

Pongamia pinata methyl ester (PPME) is chosen as alternative fuel for diesel engines. It is renewable and offer potential reduction in CO; HC and smoke emissions due to higher O2 contents in it compared to diesel fuel but higher nitrogen oxides (NOx) emission. Nitrogen oxides (NOx) in the atmosphere cause serious environmental problems, such as photochemical oxidant, acid rain, and global warmi...

2015
Liyan Feng Baoguo Du Jiangping Tian Wuqiang Long Chang Sik Lee

Using low price heavy fuel oil (HFO) in high-speed diesel engines is a practical way to reduce running costs. However, most high-speed diesel engines’ fuel systems and combustion systems cannot adapt to HFO. This causes the problem of deterioration of combustion performance. In order to solve this problem, the authors have modified the fuel injection system and combustion system of a high-speed...

2004
Ron Matthews Rick Baker

15. Supplementary Notes Project performed in cooperation with the Texas Department of Transportation and the Federal Highway Administration. 16. Abstract When TxDOT began using an ultra-low sulfur diesel fuel, Texas Low Emission Diesel (TxLED), they commissioned a simultaneous study of the effectiveness of the use of TxLED by both the TxDOT fleet and their contractors, the Associated General Co...

2012
Aidi Wu Xiuling Zhao

A fault diagnosis method based on wavelet transform and support vector machine is proposed for diesel engine. The continuous wavelet transform is used to analyze vibration signals of surface of diesel engines, and scale interval is chosen according to size of wavelet information entropy, then local energy on wavelet domain are extracted as the fault feature vector, which are eventually input in...

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