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Statements

Subject Item
n2:RIV%2F46747885%3A24210%2F12%3A%230003018%21RIV13-GA0-24210___
rdf:type
skos:Concept n13:Vysledek
dcterms:description
The study investigates the effects of non-esterified rapeseed oil, a commonly used liquid first-generation renewable bio-fuel utilized in existing compression ignition engines, on the behavior of the fuel in the high-pressure diesel fuel injection system with a traditional mechanically controlled fuel injection pump. The experiments were carried on a Zetor tractor engine powered by diesel fuel, biodiesel and heated fuel-grade rapeseed oil, instrumented with direct and low-cost indirect fuel injection line pressure sensors. The order-of-magnitude higher viscosity, higher bulk modulus, and higher density of rapeseed oil compared to diesel fuel were found to have measurable effects on the fuel delivery timing, fuel pressure, load on the fuel injection pump, and maximum fuel delivery rates. The low-cost clamp-on pressure sensors provided a good quantitative information about the injection timing but only a qualitative information about the absolute pressure. With rapeseed oil, the load on the fuel injection pump was slightly increased, and the rapeseed oil was delivered earlier and at higher pressures, counteracting the poorer atomization and increased combustion delay, with differences between heated rapeseed oil and diesel fuel decreasing with increasing fuel temperature, but subject to diminishing returns. The fuel temperatures at the injector were markedly higher than at the injection pump inlet at higher engine load, and lower at lower loads. Looping fuel return line to the fuel filter inlet accelerated the warm-up of the fuel. Heating of the fuel past about 55 degrees C and additional electric heating of the high-pressure injection lines had no marked effects on combustion timing or exhaust emissions. The study investigates the effects of non-esterified rapeseed oil, a commonly used liquid first-generation renewable bio-fuel utilized in existing compression ignition engines, on the behavior of the fuel in the high-pressure diesel fuel injection system with a traditional mechanically controlled fuel injection pump. The experiments were carried on a Zetor tractor engine powered by diesel fuel, biodiesel and heated fuel-grade rapeseed oil, instrumented with direct and low-cost indirect fuel injection line pressure sensors. The order-of-magnitude higher viscosity, higher bulk modulus, and higher density of rapeseed oil compared to diesel fuel were found to have measurable effects on the fuel delivery timing, fuel pressure, load on the fuel injection pump, and maximum fuel delivery rates. The low-cost clamp-on pressure sensors provided a good quantitative information about the injection timing but only a qualitative information about the absolute pressure. With rapeseed oil, the load on the fuel injection pump was slightly increased, and the rapeseed oil was delivered earlier and at higher pressures, counteracting the poorer atomization and increased combustion delay, with differences between heated rapeseed oil and diesel fuel decreasing with increasing fuel temperature, but subject to diminishing returns. The fuel temperatures at the injector were markedly higher than at the injection pump inlet at higher engine load, and lower at lower loads. Looping fuel return line to the fuel filter inlet accelerated the warm-up of the fuel. Heating of the fuel past about 55 degrees C and additional electric heating of the high-pressure injection lines had no marked effects on combustion timing or exhaust emissions.
dcterms:title
Experimental investigation of the behavior of non-esterified rapeseed oil in a diesel engine mechanical fuel injection system. Experimental investigation of the behavior of non-esterified rapeseed oil in a diesel engine mechanical fuel injection system.
skos:prefLabel
Experimental investigation of the behavior of non-esterified rapeseed oil in a diesel engine mechanical fuel injection system. Experimental investigation of the behavior of non-esterified rapeseed oil in a diesel engine mechanical fuel injection system.
skos:notation
RIV/46747885:24210/12:#0003018!RIV13-GA0-24210___
n13:predkladatel
n14:orjk%3A24210
n3:aktivita
n16:P
n3:aktivity
P(GA101/08/1717)
n3:cisloPeriodika
97
n3:dodaniDat
n17:2013
n3:domaciTvurceVysledku
n9:5686997 Barbolla, Alexander n9:5758602
n3:druhVysledku
n15:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n4:predkladatel
n3:idSjednocenehoVysledku
135581
n3:idVysledku
RIV/46747885:24210/12:#0003018
n3:jazykVysledku
n5:eng
n3:klicovaSlova
diesel engine; internal combustion engine; fuel injection; combustion; rapeseed oil; vegetable oil; biofuels
n3:klicoveSlovo
n11:internal%20combustion%20engine n11:rapeseed%20oil n11:biofuels n11:diesel%20engine n11:combustion n11:vegetable%20oil n11:fuel%20injection
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[91BF2F22B9A9]
n3:nazevZdroje
Fuel
n3:obor
n18:JT
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n6:GA101%2F08%2F1717
n3:rokUplatneniVysledku
n17:2012
n3:svazekPeriodika
2012
n3:tvurceVysledku
Pechout, Martin Vojtíšek, Michal Barbolla, Alexander
n3:wos
000303979400016
s:issn
0016-2361
s:numberOfPages
9
n19:doi
10.1016/j.fuel.2012.02.055
n20:organizacniJednotka
24210