Effects of exhaust gas recirculation (EGR) on combustion and emissions during cold start of direct injection (DI) diesel engine

Peng, Haiyong; Cui, Yi; Shi, Lei; Deng, Kangyao

doi:10.1016/j.energy.2007.10.014

Cited by 85 publications

(20 citation statements)

References 22 publications

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“…But, even for a given engine type, the engine characteristics can still be varied in a wide range in dependence on engine management, exhaust gas after treatment, and usage of alternative fuels (Fino et al 2003;Gray and Frost 1998;Maiboom et al 2008;Peng et al 2008;Stanislaus et al 2010;Twigg 2007) (Fig. 3.1).…”

mentioning

confidence: 99%

Guidelines for Improving Diesel Engine Characteristics

Kegl

Pehan

2013

Lecture Notes in Energy

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confidence: 99%

Guidelines for Improving Diesel Engine Characteristics

Kegl

Pehan

2013

Lecture Notes in Energy

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“…There are also some studies that use EGR (exhaust gas recirculation) system to improve the engine cold start characteristics. Peng et al 6 have shown that the peak cylinder pressure of first firing cycle was about 45% higher than that under normal condition without EGR, and the start of combustion was also much earlier.…”

Section: Introductionmentioning

confidence: 99%

Effects of using vortex tubes on events during cold start of a direct injection diesel engine

Çelik

Ceviz

Yılmaz

et al. 2013

Journal of Renewable and Sustainable Energy

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Vortex tubes use a compressed gas flow and separate it into low and high temperature regions without using any moving mechanical parts. Cold and hot exhaust flows of vortex tubes can be used for different purposes. In this study, a vortex tube was used to improve the cold start performance of a six cylinders, four stroke and direct injection diesel engine of a truck. To increase the engine intake air temperature, hot exhaust of vortex tube was introduced to the engine intake manifold. Pressured air was supplied to the vortex tube from the air tank of the compressed-air brake system of the truck. Variation in the cold starting events was observed by both in cylinder pressure data and revolution of engine crank shaft. Experiments were started when the ambient air and engine cooling fluid temperatures were at 0 °C, which is a critical temperature for cold-starting diesel engines. Experimental results showed that the cold starting performance of the engine can be successfully improved by using vortex tubes. Durations of engine starting-cranking, cranking-idling, and idling-stabling were decreased due to the increase in the intake air temperature.

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“…As a result, lower concentrations of carbon monoxide, hydrocarbons and particulates are obtained [15]. During the cold startup of the engine equipped with the exhaust gas recirculation system, some of the gas returns to the engine and can shorten the auto-ignition delay period [11]. Due to stricter standards on concentrations in the exhaust gas from internal combustion piston engines, it is necessary to use alternative fuels that produce lower negative environmental impact.…”

Section: Introductionmentioning

confidence: 99%