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Use of water emulsified diesel (WED) has overcome the difficulties of simultaneous reduction of both nitrogen oxides (NOx) and particulate matter (PM) emission from diesel engines. Its application in CI engines also reduces the emission of other pollutants like hydrocarbon (HC), carbon monoxide (CO) and smoke. In this article, the authors have studied the combustion and performance characteristics...
In this study, the modeling of the effect of exhaust gas recirculation on Homogenous Charge Compression Ignition (HCCI) in Diesel Engine has been investigated. The efficiency and emission reduction of the engine were an important point of view from study charge compression ignition. Furthermore, the greater adoption of the diesel engine has been inhibited by the increasing public awareness on pollution...
Internal combustion engines play a key role in transportation and power generation sectors in which diesel engines occupy a prominent status. Reduction of exhaust emission in diesel engines is a difficult and challenging task without compromising the engine performance. Various parameters like injection timing, compression ratio, and injection pressure can be varied in order to attain the desired...
The effect of injector configuration parameters on performance, combustion process and exhaust emissions characteristics from a direct injection spark ignition (DISI) methanol engine was investigated. The experimental results show that the brake thermal efficiency and maximum in-cylinder pressure of injector nozzle A are higher than those of injector nozzles B and C. The total hydrocarbon compounds...
Using the excess heat of exhaust gas to heat the water to vapor, by spraying the vapor into intake manifold to join combustion, the performance of vehicle diesel engine has been researChed. The experimental results demonstrate that the bsfc of experimental engine cannot be reduced markedly, the temperature of exhaust gas for experimental engine is lower than that of original engine, the torsion of...
In order to investigate the effects ethanol-diesel blends and altitude on the performance of diesel engine, the comparative experiments were carried out on the bench of turbo-charged diesel engine fueled with pure diesel (as prototype) and ethanol-diesel blends (E10, E15, E20 and E30) under different atmospheric pressures (81kPa, 90kPa and 100kPa). The experimental results indicate that the equivalent...
A single cylinder vertical air-cooled diesel engine was modified to use Methanol fuel mode to study the performance, emission, and combustion characteristics. The primary fuel, Methanol with air, compressed, and ignited by a small pilot spray of diesel. Dual fuel engine showed a reduction in oxides of Nitrogen and smoke in the entire load range. However, it suffers from the problem of poor brake thermal...
This paper presents the results of investigations carried out on a single cylinder, direct injection, water cooled diesel engine operating on diesel, straight vegetable oils (Thumba oil and Neem) and 20% biodiesel blend of Thumba oil. The experiment covered a range of loads. Results show that Thumba oil can be used as an alternative fuel with better performance and lower emissions compared to Neem...
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