Experimental investigation of dual engine performance using variable LPG composition fuel

Elnajjar, Emad; Hamdan, Mohammad O.; Selim, Mohamed Y. E.

doi:10.1016/j.renene.2012.09.048

Cited by 45 publications

(21 citation statements)

References 9 publications

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“…An of less than 5% indicates that the change in the ratio of propane to butane-2 methyl does not have a significant effect on combustion (NREL, 1994;BP International Gas Union, 2011). The effect of LPG composition on diesel engine performance has been described in detail by previous researchers (Saleh, 2008;Elnajjar et al, 2013a;Elnajjar et al, 2013b).…”

Section: Effect On Energy Combustionmentioning

confidence: 99%

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Setiyo¹,

Soeparman²,

Hamidi³

et al. 2017

IJTech

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Research and development activities on Liquefied Petroleum Gas (LPG) vehicles have increased LPG engine performance to that of gasoline engines. LPG evaporation in the fuel system also has a potential cooling effect that can be taken advantage of. The results from previous studies, however, do not explain the level of fuel in the tank at the time of data collection. LPG is a mixture of several molecules which have different properties. This paper presents an investigation of LPG composition characteristics in the fuel line during the discharging process. Samples were taken periodically on the fuel line by special gas syringes. Afterwards, the samples were injected into the Gas Chromatography-Mass Spectrometry (GC-MS) device. This series of tests, which was conducted on lengthy LPG tanks, showed that the propane and butane 2-methyl molecules are unevenly dispersed during the discharging of the tank. However, this study found that a change in LPG composition during the discharging process does not have significant influence on the energy delivery and the potential cooling effect.

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Section: Effect On Energy Combustionmentioning

confidence: 99%

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Setiyo¹,

Soeparman²,

Hamidi³

et al. 2017

IJTech

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“…At low load the LPG addition causes a reduced combustion duration, being established the maximum fraction of LPG addition with acceptable cycle combustion variability, COV IMEP < 5%, [6]. Elnajjar [7] uses a single cylinder, naturally aspirated, four strokes with indirect injection, water cooled Ricardo E6 diesel engine. Different composition of LPG has lower impact on the engine efficiency and has a significant influence on the combustion noise level [7].…”

Section: Introductionmentioning

confidence: 99%

“…Elnajjar [7] uses a single cylinder, naturally aspirated, four strokes with indirect injection, water cooled Ricardo E6 diesel engine. Different composition of LPG has lower impact on the engine efficiency and has a significant influence on the combustion noise level [7]. Tira [8] analyses the running of a LPG-diesel dual fuelled engine operated with rapeseed methyl ester and gas-to-liquid diesel fuels, proofing that the combustion cycle variability remains acceptable in running conditions at which 60% of liquid fuel was substituted by LPG.…”

Section: Introductionmentioning

confidence: 99%

Study of the cycle variability at an automotive diesel engine fuelled with LPG

et al. 2017

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Abstract. Liquid Petroleum Gas is a viable alternative fuel for diesel engines due to its ability of emissions and fuel consumption reduction. Combustion variability at LPG diesel engine is analysed for maximum pressure, maximum pressure angle and indicated mean effective pressure. Combustion variability is influenced by the increase of LPG cycle dose which lead to the increase of the cycle variability coefficients values, but without exceeding the admitted values that provide diesel engine reliability. Analysis of COV values establishes the maximum admitted values of LPG cycle.

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“…Many investigations have been performed to study the heat transfer, thermal efficiency and the emissions of lean combustion. Elnajjar et al [1] study the effect of LPG fuel with different propane to butane volume ratio compositions on the performance of dual fuel engine under variable operational, the data indicates that different LPG fuel composition has minimal effect on the engine efficiency and has strong impact on the levels of generated combustion noise. Weigandet et al [2] has performed comprehensive experimental investigations on premixed swirling CH4 /air flames at atmospheric pressure in a gas turbine.…”

Section: Introdtucionmentioning

confidence: 99%

Experimental Investigation of Heat Transfer and Thermal Efficiency for Lean Combustion of LPG Gas Hypermixing With Super Heated Steam on Swirling Surface Configuration

Abdelrahman¹,

Gomaa²

2016

The International Conference on Applied Mechanics and Mechanica

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The present work introduces the use of steam injection technology with an advanced design based on "hyper mixing" with LPG fuel and swirling air as lean combustion burned on swirling surface furnace. The effect of steam injection and swirling surface on the thermal efficiency, heat transfer rate, heat release rate and exhaust gases emission are presented. In this concept, the twisted tape of swirling surface is optimized at twist ratio, Y = 0.6 for the inner surface of furnace and Y = 0.25 for the cupper tubes of water cooling and steam injection is performed. The experiments were carried out at Reynolds number ranging from 50000 to 120000 for air at 20 • C and different air mass flow rate in the range from2kg/h to 25 kg/h while the temperature of combustion was650 C •. The experimental results indicated that the increase in heat transfer rate and thermal efficiency by using swirling surface is greater than its respective value of plain surface by 25% and more increase by 50% by using steam injection at the same Reynolds number. The fuel consumption is decreased also NOx emission decreased as results of steam injection by 40%. The thermal efficiency increased as the heat release rates decreased.

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Experimental investigation of dual engine performance using variable LPG composition fuel

Cited by 45 publications

References 9 publications

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Characteristic of LPG Compositions in the Fuel Line during Discharging Process

Study of the cycle variability at an automotive diesel engine fuelled with LPG

Experimental Investigation of Heat Transfer and Thermal Efficiency for Lean Combustion of LPG Gas Hypermixing With Super Heated Steam on Swirling Surface Configuration

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