The effects of engine operation and fuel composition on diesel particle size distribution and carbon content

̊lander, T. A; Leskinen, A.; Laitinen, Lea; Ruotsalainen, I.; Raunemaa, T.; Rantanen, Leena; Mikkonen, Seppo

doi:10.1016/s0021-8502(98)00522-9

Cited by 2 publications

(2 citation statements)

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“…The engine speed was 1500 rpm for both operating conditions, whereas the indicated mean effective pressure (IMEP) values were 4.5 bar (condition 1, corresponding to 50% of the full load at this speed) and 6.1 bar (condition 2, corresponding to 75% of the full load at this speed). The engine load has more-important effects on the exhaust gas temperature and the concentration of the volatile material and particulates than the engine speed. ,, …”

Section: Methodsmentioning

confidence: 99%

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Dual Fuel Diesel Engine Operation Using H₂. Effect on Particulate Emissions

et al. 2005

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In recent publications, the authors have shown that the exhaust gas fuel reforming technique has the potential to provide a way of controlling diesel engine exhaust emissions. The technology involves the incorporation of a reformer in the engine exhaust gas recirculation (EGR) loop. Fresh fuel is injected in the reactor, where it is reformed by catalytic reaction with exhaust gas. The produced hydrogen-rich gas is then fed back into the engine as reformed EGR (REGR). Thus, in this way, the engine in effect operates in dual fuel operation mode. In the present study, the particulate emissions of the diesel-hydrogen fueled engine were studied using an electrical low pressure impactor (ELPI). The work was performed by simulating the operation of an optimized engine-reformer system by feeding the engine with simulated reformate containing 24% hydrogen. The particle size and mass distribution were not affected significantly, but the particle total number and mass were reduced considerably, compared to the standard diesel fueling.

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Section: Methodsmentioning

confidence: 99%

“…The engine load has more-important effects on the exhaust gas temperature and the concentration of the volatile material and particulates than the engine speed. 2, 24,32 Table 3 shows all the tests presented here. Two different levels of REGR and standard EGR were used: 10 vol % and 20 vol %.…”

Section: Methodsmentioning

confidence: 99%