2006
DOI: 10.1016/j.fuel.2006.05.003
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Experimental study on the auto-ignition and combustion characteristics in the homogeneous charge compression ignition (HCCI) combustion operation with ethanol/n-heptane blend fuels by port injection

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Cited by 125 publications
(26 citation statements)
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“…In addition, although certain additives or solvents can render diesel/ethanol blended fuel stably miscible, mixtures of ethanol and diesel fuel are difficult to stabilize [28], and so far diesel/ethanol blends have not been used in commercial applications. Thus, a variety of novel combustion modes, such as HCCI (homogeneous charge compression ignition) combustion using ethanol [29] and ethanol/n-heptane blends [30,31], dual-fuel combustion of port fuel injection of ethanol combusted with direct injection of diesel fuel [32,33], dual-fuel sequential combustion using port fuel injection of n-heptane with direct injection of ethanol [34,35], have been proposed by many scholars. Of these, HCCI combustion suffers from several drawbacks, including a narrow operating range, higher CO and HC emissions, and the difficulty of switching between HCCI and traditional combustion modes.…”
Section: Introductionmentioning
confidence: 99%
“…In addition, although certain additives or solvents can render diesel/ethanol blended fuel stably miscible, mixtures of ethanol and diesel fuel are difficult to stabilize [28], and so far diesel/ethanol blends have not been used in commercial applications. Thus, a variety of novel combustion modes, such as HCCI (homogeneous charge compression ignition) combustion using ethanol [29] and ethanol/n-heptane blends [30,31], dual-fuel combustion of port fuel injection of ethanol combusted with direct injection of diesel fuel [32,33], dual-fuel sequential combustion using port fuel injection of n-heptane with direct injection of ethanol [34,35], have been proposed by many scholars. Of these, HCCI combustion suffers from several drawbacks, including a narrow operating range, higher CO and HC emissions, and the difficulty of switching between HCCI and traditional combustion modes.…”
Section: Introductionmentioning
confidence: 99%
“…They concluded that the transition fluctuations could be decreased by spark ignition in a HCCI/spark ignition hybrid combustion engine. Xingcai et al [20] investigated the combustion and emission characteristics of HCCI combustion using ethanol/n-heptane blends. The results showed that IMEP and thermal efficiency increased at higher engine loads with the increase of ethanol in the test fuel.…”
Section: Introductionmentioning
confidence: 99%
“…Bu durum karbonmonooksit (CO) emisyonlarının artmasına sebep olmaktadır. Çünkü CO emisyonları yanma sonu sıcaklıklarından büyük ölçüde etkilenmektedir [14][15][16][17][18][19]. Bu problemlerin giderilebilmesi için yanmanın kontrollü bir şekilde yavaşlatılması ve ısı yayılım hızının azaltılması gerekmektedir.…”
Section: Gi̇ri̇ş (Introduction)unclassified
“…Oktan sayısındaki artış HCCI yanmasındaki düşük sıcaklık ve yüksek sıcaklık oksidasyon bölgelerini gecikmeye almaktadır ve negatif sıcaklık bölgesinin ise uzamasına neden olmaktadır [21,22]. Şekil 1'de HCCI yanmasının tipik ısı yayılım oranı eğrisi görülmektedir [14]. Çalışma koşulları da HCCI yanması üzerinde önemli bir etkiye sahiptir.…”
Section: Gi̇ri̇ş (Introduction)unclassified