Internal Combustion Engine Handbook, 2nd English Edition

Basshuysen, Richard van; Schaefer, Fred

doi:10.4271/r-434

Cited by 28 publications

(24 citation statements)

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“…in HCCI (homogenous charge compression ignition) and in DF applications. A more comprehensive description of the turbulent premixed combustion can be read in the "Internal Combustion Engine Handbook" by van Basshuysen and Schäfer [11] and in "Internal Combustion Engine Fundamentals" by Heywood [9].…”

Section: Premixed Combustionmentioning

confidence: 99%

“…Commonly is the diesel combustion divided into a four phases: 1) ignition delay, 2) premixed combustion, 3) diffusion combustion and 4) late combustion phase. [9,11,12] …”

Section: Non-premixed Combustionmentioning

confidence: 99%

“…In the opposite, lean air-fuel mixtures deteriorates the flame front propagation until a lambda limit is exceeded and no flame front is seen. During above mentioned lean conditions combustion will occur only in the immediate pilot flame diffusion flame region causing a partial burning state [11]. The unburned methane residue in these areas leads to methane emission slip that is easily detected as an ascending trend of exhaust CH4.…”

Section: Lambda λmentioning

confidence: 99%

“…The knock phenomenon can therefore cause severe damage to engine internal components such as piston ring breakage, cylinder head, piston crown and top land erosion and piston melting, which in turn leads in low thermal efficiency and high emission levels. [9,11] Knock can be caused from various reasons, and is therefore defined by the origin:…”

Section: Knockmentioning

confidence: 99%

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Dual-Fuel Combustion Characterization on Lean Conditions and High Loads

Pettinen

Kaario

Larmi

2017

SAE Technical Paper Series

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Unstable oil markets combined with the alarming statistics of continuously growing emission problems causes anxiety among many nations. The greatest dilemma lies in the answer about how to rationally overcome the dependency of fossil based energy sources. The truth seems to be found on utilizing renewable energy generating low emissions. Methane is suggested as one of the worthwhile solutions for substituting crude-oil based fuels. Methane as a fuel combined with modern engine technology seems to open possibilities solving the above mentioned problems.Dual-fuel technology is suggested as a solution for effectively utilizing alternative fuels in the near future. Charge air mixed methane combined with a compression ignition engine utilizing a small diesel pilot injection seems to form a worthwhile compromise between good engine efficiency and low emission outcome. Problems concerning dual-fuel technology profitableness seems to be related to fully control the combustion in relation to lean conditions. Lean operating conditions solves the problems concerning pumping losses, but brings challenges in controlling the slow heat release of the premixed methane.A study concerning lean operation dual-fuel combustion was executed. In the thesis, a single cylinder 'free parameter' diesel engine was adapted for dual-fuel (diesel-methane) usage. A parameter research related to lambda window widening possibilities was carried out. The main variables studied were diesel pilot injection timing and pressure, diesel substitution rate and the relation between combustion characteristics and charge air temperature.Diesel pilot injection parameter optimization seems to affect less on combustion quality compared to the benefits from increasing the charge mass reactivity through preheating the charge air. Improvements in combustion quality were noted in all lean condition tests in the diesel substitution rate scale 0 -70%. However, significant variation in combustion characteristics were noted through the whole substitution rate range. Remarkable accomplishments in combustion behavior were experienced in the misfire boundary conditions in a form of premixed mixture ignition in the end gas region (PREMIER).Keywords dual-fuel, methane fuel, combustion character TiivistelmäÖljymarkkinoiden epävarmat ennusteet sekä jatkuvasti kohoavat päästöt aiheuttavat maailmanlaajuista huolta tulevaisuuden kannalta. Suurimmat kysymykset ongelmatilanteeseen liittyvät fossiilisten raakaöljyjen korvaamismahdollisuuksiin. Ratkaisu vaikuttaisi löytyvän uusiutuvista, matalia päästöarvoja tuottavista energianlähteistä. Yhdeksi kannattavaksi raakaöljyn korvaajaksi on ehdotettu metaanikaasua. Ennusteet metaanikaasun eduista yhdistettynä modernien polttomoottorien kanssa enteilevät mahdollisuuksia ongelmien ratkaisemiseksi.Dual-fuel-teknologia on esitetty hyväksi moottorityypiksi hyödyntämään uusiutuvia energianlähteitä. Imuilmaan esisekoitettu metaanikaasu yhdistettynä puristussytytteisen polttomoottorin kanssa, jossa polttoaine-seoksen syttymistä sekä p...

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Section: Premixed Combustionmentioning

confidence: 99%

“…Commonly is the diesel combustion divided into a four phases: 1) ignition delay, 2) premixed combustion, 3) diffusion combustion and 4) late combustion phase. [9,11,12] …”

Section: Non-premixed Combustionmentioning

confidence: 99%

Section: Lambda λmentioning

confidence: 99%

Section: Knockmentioning

confidence: 99%

See 2 more Smart Citations

Dual-Fuel Combustion Characterization on Lean Conditions and High Loads

Pettinen

Kaario

Larmi

2017

SAE Technical Paper Series

View full text Add to dashboard Cite

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“…However, with SI engines, the compression ratio is limited by knocking, which leads to poor efficiency, which is exacerbated by pumping losses from throttling under partial load. Diesel engines have the advantage of a higher combustion efficiency; however, issues with particulate matter (PM) and NO x emission remain, because of the stratified charge [4,5].…”

Section: Introductionmentioning

confidence: 99%