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Statements

Subject Item
n2:RIV%2F46747885%3A24210%2F11%3A%230002587%21RIV12-MSM-24210___
rdf:type
n9:Vysledek skos:Concept
rdfs:seeAlso
http://papers.sae.org/2011-24-0107
dcterms:description
Neat, non-esterified vegetable oils are often used as alternative, renewable, locally produced, low greenhouse gas emissions fuel for diesel engines, which are typically fitted with a heated secondary fuel system, and are started, warmed up, and shut down on diesel fuel. This paper addresses the question of the temperature to which the fuel should be, can be, and is heated. Experiments done on a tractor engine with a mechanical inline injection pump revealed that at sustained higher loads, the fuel can be heated by engine coolant nearly to the thermostat opening temperatures prior to the injection pump inlet, with additional heating taking place before the fuel reaches the injector inlet. While vegetable oil heating to at least about 40-50 ºC was beneficial to prevent large power loss on a common-rail type engine tested, excessive heating decreased the maximum engine torque on the engine with an inline injection pump, and accelerated degradation of the fuel. At sustained idle, the coolant and fuel temperature decrease, with additional cooling of the fuel by the time it reaches the injector, and the delay of the onset of the combustion increases with decreasing fuel temperature. Recycling of the return fuel line back to the inlet is both beneficial, as it accelerates the heating of the fuel during engine warm up, prevents excessive heating of the fuel in the fuel tank, and prevents heated and possibly degraded fuel from returning to the tank, but also has drawbacks, as some heating of the fuel tank by the returned fuel is needed to ensure adequate fuel flow and filterability. Design of the secondary fueling system should therefore consider the engine type and the anticipated operating conditions. Neat, non-esterified vegetable oils are often used as alternative, renewable, locally produced, low greenhouse gas emissions fuel for diesel engines, which are typically fitted with a heated secondary fuel system, and are started, warmed up, and shut down on diesel fuel. This paper addresses the question of the temperature to which the fuel should be, can be, and is heated. Experiments done on a tractor engine with a mechanical inline injection pump revealed that at sustained higher loads, the fuel can be heated by engine coolant nearly to the thermostat opening temperatures prior to the injection pump inlet, with additional heating taking place before the fuel reaches the injector inlet. While vegetable oil heating to at least about 40-50 ºC was beneficial to prevent large power loss on a common-rail type engine tested, excessive heating decreased the maximum engine torque on the engine with an inline injection pump, and accelerated degradation of the fuel. At sustained idle, the coolant and fuel temperature decrease, with additional cooling of the fuel by the time it reaches the injector, and the delay of the onset of the combustion increases with decreasing fuel temperature. Recycling of the return fuel line back to the inlet is both beneficial, as it accelerates the heating of the fuel during engine warm up, prevents excessive heating of the fuel in the fuel tank, and prevents heated and possibly degraded fuel from returning to the tank, but also has drawbacks, as some heating of the fuel tank by the returned fuel is needed to ensure adequate fuel flow and filterability. Design of the secondary fueling system should therefore consider the engine type and the anticipated operating conditions.
dcterms:title
Performance Of A Diesel Engine Fueled By Rapeseed Oil Heated To Different Temperatures Performance Of A Diesel Engine Fueled By Rapeseed Oil Heated To Different Temperatures
skos:prefLabel
Performance Of A Diesel Engine Fueled By Rapeseed Oil Heated To Different Temperatures Performance Of A Diesel Engine Fueled By Rapeseed Oil Heated To Different Temperatures
skos:notation
RIV/46747885:24210/11:#0002587!RIV12-MSM-24210___
n9:predkladatel
n18:orjk%3A24210
n3:aktivita
n14:P
n3:aktivity
P(1M0568), P(GA101/08/1717)
n3:cisloPeriodika
24-0107
n3:dodaniDat
n11:2012
n3:domaciTvurceVysledku
n10:5758602 n10:5686997 Lozano, Rafael A.
n3:druhVysledku
n13:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
219914
n3:idVysledku
RIV/46747885:24210/11:#0002587
n3:jazykVysledku
n7:eng
n3:klicovaSlova
heated fuel; rapeseed oil; vegetable oil; heated vegetable oil; diesel engine; fuel temperature; combustion; emissions; alternative fuel; biofuel; renewable; dual-fuel; fuel injection
n3:klicoveSlovo
n8:vegetable%20oil n8:emissions n8:dual-fuel n8:fuel%20injection n8:heated%20vegetable%20oil n8:fuel%20temperature n8:diesel%20engine n8:alternative%20fuel n8:heated%20fuel n8:renewable n8:rapeseed%20oil n8:combustion n8:biofuel
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[1B62B9825F7C]
n3:nazevZdroje
Society of Automotive Engineers Technical Paper Series
n3:obor
n4:JT
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n12:1M0568 n12:GA101%2F08%2F1717
n3:rokUplatneniVysledku
n11:2011
n3:svazekPeriodika
2011
n3:tvurceVysledku
Pechout, Martin Lozano, Rafael A. Vojtíšek, Michal
s:issn
0148-7191
s:numberOfPages
16
n20:doi
10.4271/2011-24-0104
n21:organizacniJednotka
24210