High speed direct injection (DI) light-fuel (gasoline) fumigated vehicle diesel engine

Şahin, Zehra; Durgun, Orhan

doi:10.1016/j.fuel.2006.07.009

Cited by 23 publications

(20 citation statements)

References 11 publications

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“…In the theoretical model used here, multi-zone thermodynamic based model developed by Shahed [8] and then Ottikkutti [9] has been used and developed with new assumptions to determine complete engine cycle and engine characteristics. Detailed information about this model has been given in the authors' previous studies [10][11][12]. Here, a brief description of the model has been presented.…”

Section: Description Of the Model For Ndfmentioning

confidence: 99%

Prediction of the Effects of Ethanol-Diesel Fuel Blends on Diesel Engine Performance Characteristics, Combustion, Exhaust Emissions, and Cost

Şahin

Durgun

2009

Energy Fuels

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In the presented study, the effects of the using of ethanol-diesel fuel blends on the engine performance characteristics such as brake specific fuel consumption (BSFC), brake effective power, brake effective efficiency and exhaust emissions have been investigated theoretically in different direct-injection (DI) diesel engines by using a multi-zone thermodynamic model. The results indicate that as ethanol percentage in the mixture increases, BSFC reduces and brake effective efficiency improves significantly and brake effective power increases slightly. On the other hand, equivalence ratio decreases and ignition delay increases for ethanol blends and combustion duration indicates generally a decreasing tendency. The concentrations of nitric oxide (NO), carbon monoxide (CO) and hydrogen (H 2 ) increase at low ethanol ratios because of increment of cylinder temperatures. But at high ethanol ratios they decrease because of decrement of cylinder temperatures. In the presented study, cost analysis has also been performed by using semi empirical relation given by Durgun. It was determined that ethanol blends are not economic for these engines because cost of ethanol is higher than diesel fuel in Turkey as well as in many of the other countries and decrease ratio of brake specific fuel consumption is low.

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Section: Description Of the Model For Ndfmentioning

confidence: 99%

Prediction of the Effects of Ethanol-Diesel Fuel Blends on Diesel Engine Performance Characteristics, Combustion, Exhaust Emissions, and Cost

Şahin

Durgun

2009

Energy Fuels

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“…Since NG prices have recently decreased due to the presence of shale gas in the US, NG dual-fuel has also been the subject of increasing interest in road transport. Though the dual fuel concept has traditionally been perceived as natural gas combustion, there are several liquid fuels that have been studied in dual fuel combustion: ethanol [9][10][11][12][13][14][15][16][17], methanol [18][19][20][21][22], butanol [23] Liquefied Petroleum Gas (LPG)/propane [24][25][26] and gasoline [27,28]. A common feature of these three fuels is that they are all well suited for SI engines and have similar combustion characteristics, e.g.…”

Section: Introductionmentioning

confidence: 99%

Dual fuel diesel combustion with an E85 ethanol/gasoline blend

Sarjovaara

Larmi

2015

Fuel

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In this experimental study, the ethanol/gasoline blend E85 was used as the primary fuel in a dual-fuel combustion concept. The E85 blend was injected at low pressure into the intake manifold and the mixture was ignited via a diesel fuel injection near top dead centre. The research engine was based on a heavy-duty diesel engine equipped with a common-rail injection system. Only the duration of the diesel injection was modified in the diesel injection system during the tests-the other diesel injection parameters were not changed. The goal was to study the possibilities of using the waste material-based E85 ethanol blend on dual-fuel concept as a promising future bio-fuel option. The results were promising, though the engine was not optimised for the combustion concept being studied and minimum modifications were done to the engine. High E85 rates (up to 89%) by energy content were achieved, especially under medium load conditions. On the high and low load portions were lower, but the E85 rates were higher than 30% even in these cases. For most of the cases, the limiting issue was the pressure rise rate, but in cases with the highest portions of E85 the limiting factor was the minimum quantity of the diesel fuel enabling two phase diesel fuel injection. In all cases the E85 increased carbon-monoxide and un-burned hydrocarbon emission, but the nitrogen oxide emission decreased simultaneously in most of the cases. Smoke emissions were low in all cases, but at highest E85 rate smoke emissions further decreased to near zero value.

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“…This type of research was performed in the work [23] where the injection of water into the SI engine powered by LPG and the effect of this process on thermal losses were analysed. The effect of adding gasoline to diesel oil on the performance and efficiency of the diesel engine was examined in [24], while the heat balance of an engine powered with diesel oil was compared with that of an engine powered by a mixture of ethanol and diesel oil in [25].…”

Section: Introductionmentioning

confidence: 99%

Energetic Analysis of the Aircraft Diesel Engine

2019

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The analysis of the distribution of thermal energy generated during the combustion process in internal combustion engines and the estimation of individual losses are important regarding performance and efficiency. The article analyses the energy balance of the designed two-stroke opposed piston diesel engines with offset, i.e. the angle by which the crankshaft at the side of exhaust ports is ahead of the crankshaft at the side of intake ports. Based on the developed zero-dimensional engine model, a series of simulations were performed in steady-state conditions using the AVL BOOST software. The values of individual energy losses, including cooling losses, exhaust gas losses, friction losses were obtained. The influence of decreasing and increasing the offset on the performance of the tested engine was analysed.

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High speed direct injection (DI) light-fuel (gasoline) fumigated vehicle diesel engine

Cited by 23 publications

References 11 publications

Prediction of the Effects of Ethanol-Diesel Fuel Blends on Diesel Engine Performance Characteristics, Combustion, Exhaust Emissions, and Cost

Prediction of the Effects of Ethanol-Diesel Fuel Blends on Diesel Engine Performance Characteristics, Combustion, Exhaust Emissions, and Cost

Dual fuel diesel combustion with an E85 ethanol/gasoline blend

Energetic Analysis of the Aircraft Diesel Engine

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