Effect of comprex supercharging on diesel emissions

İçıngür, Yakup; Haşımoğlu, Can; Salman, M. Sahir

doi:10.1016/s0196-8904(02)00220-0

Cited by 12 publications

(2 citation statements)

References 4 publications

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“…The pressure-wave supercharger (PWS) utilizes the energy of the hot cylinder exhaust gas to build up the intake air pressure [1][2][3][4] , like the conventional turbo charging. However, when turning to the operation principle of PWS it is quite different.…”

Section: Introductionmentioning

confidence: 99%

Emission Performance of a Diesel Engine with Pressure-Wave Supercharger

Lei

Zhang

Zhou

et al. 2011

AMR

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Pressure-wave supercharger (PWS) is one technical way to boost the engine intake air pressure. PWS has several advantages such as less emission (especially NOx emission), rapid response when load changes, higher torque even at low engine speed. In this research a 493 diesel engine is charged by a pressure-wave supercharger (PWS). The emission performance of the PWS diesel engine is mainly investigated. Together with experimental test, the CFD simulation is completed basing on a 3D model of the PWS rotor channel. The CFD simulation results show that the inner EGR phenomenon happens especially when PWS runs at middle PWS rotational speed with part load. The test results demonstrate that the PWS diesel engine performs well with less NOx and soot emissions than the turbocharged diesel engine.

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Section: Introductionmentioning

confidence: 99%

Emission Performance of a Diesel Engine with Pressure-Wave Supercharger

Lei

Zhang

Zhou

et al. 2011

AMR

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“…(c) exhaust gas after treatment: catalytic converter systems, secondary air injection, thermal reactors, particulate traps, etc. [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

Exhaust emission characteristics of a low-heat-rejection diesel engine fuelled with 10 per cent ethanol and 90 per cent diesel fuel mixture

Haşımoğlu

2008

Proceedings of the Institution of Mechanical Engineers, Part D:

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Simultaneously reducing smoke and nitrogen oxide (NO x) emissions of diesel engines is an important problem in exhaust emission control. Use of ethanol—diesel fuel blend may be an alternative way to reduce both these emissions at the same time without modification of any engine-operating parameters. In this study the effect of an ethanol—diesel fuel blend on the simultaneous reduction in smoke and NO x emissions in a direct-injection turbocharged diesel engine with low-heat-rejection application was investigated. For this purpose, ethanol (10 vol/%) diesel fuel blend was used as the fuel, and the cylinder head, valves, and pistons of the test engine were coated with a yttria stabilized zirconia (Y2O3—ZrO2) layer 0.35 mm thick over a nickel-chromium—aluminium bond coat 0.15 mm thick by the atmospheric plasma spray coating method. The results of the engine tests have shown that, with ethanol addition, the NO x emission was decreased by 71.3 per cent at 1200 r/min and by 40.7 per cent at 2200 r/min, the smoke emission was decreased by 39.8 per cent at 1200 r/min and by 20.3 per cent at 2200 r/min, the excess air ratio was increased by 43.9 per cent at 1200 r/min and decreased by 7.9 per cent at 2200 r/min, and the oxygen (O2) emission was increased by 27.3 per cent at 1200 r/min and decreased by 8.6 per cent at 2200 r/min, in comparison with the standard engine.

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