The Development of a Dual-Injection Hydrogen-Fueled Engine With High Power and High Efficiency

Kim, Y. Y.; Lee, Jong T.; Caton, Jerald A.

doi:10.1115/1.1805551

Cited by 28 publications

(5 citation statements)

References 8 publications

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“…Currently, there are many examples of engines that try to use H2 as their main fuel, but there are only two major types (i) those that use an external fuel mixture preparation and (ii) those that use direct--cylinder fuel injection [3].…”

Section: H2 Enginesmentioning

confidence: 99%

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Water: The Future’s Fuel

Benavente¹

2014

UC Merced Undergraduate Research Journal

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Fossil fuel burning vehicles contribute to atmospheric pollution and the continuous temperature increase that affects the entire planet. This occurs because of the accumulation of what are known as Green House Gases (GHGs), which are responsible for trapping the energy of the Sun here on Earth. Because the pool of GHGs is becoming denser due to the burning of fossil fuels, among other contributors, the amount of energy that is trapped consequently increases, resulting in an increase in planetary temperature (The Green House Effect). If the burning of fossil fuels is responsible for the increase of GHGs in the atmosphere, the logical thing to do is to find a substitute that does not produce GHGs. An obvious replacement is hydrogen (H 2 ), a clean burning gas with no GHGs as byproducts. The only thing hindering the transition to H 2 is its' method of production. In today's day and age, technology has finally reached a point where water (H 2 O) can be used for the production of H 2 , which makes it our fuel for the future.

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Section: H2 Enginesmentioning

confidence: 99%

“…The difference between both is that even though the external fuel mixture preparation engine is a simple design and very efficient, it lacks power, while the direct-cylinder fuel injection engine may possess high power, but it lacks thermal efficiency [3].…”

Section: H2 Enginesmentioning

confidence: 99%

Water: The Future’s Fuel

Benavente¹

2014

UC Merced Undergraduate Research Journal

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“…External mixture formation by means of port fuel injection has also been demonstrated to result in higher engine efficiencies, extended lean operation, lower cyclic variation, and lower NO x production (Yi, Min & Kim, 2000;Rottengruber, Berckmüller, Elsässer, Brehm. & Schwarz, 2004;Kim, Lee & Caton, 2006). This is the consequence of the higher mixture homogeneity due to longer mixing times for PI.…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of External Mixture Formation Strategy in Hydrogen Fueled Engine

Kamil¹,

Rahman²,

Bakar³

2011

J MECH ENG SCI

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Hydrogen induction strategy in an internal combustion engine plays a vital role in increasing the power density and prohibiting combustion anomalies. This paper inspects the performance characteristics of cylinder hydrogen-fueled engine with port injection feeding strategy. To that end, a one-dimensional gas dynamic model has been built to represent the flow and heat transfer in the components of the engine. The governing equations are introduced followed by the performance parameters and model description. Air-fuel ratio was varied from a stoichiometric limit to a lean limit. The rotational speed of the engine was also changed from 1000 to 4500 RPM. The injector location was fixed in the mid-point of the intake port. The general behavior of the hydrogen engine was similar to that of a gasoline engine, apart from a reduction in the power density, which was due to a decrease in the volumetric efficiency. This emphasizes the ability of retrofitting traditional engines for hydrogen fuel with minor modifications. The decrease in the volumetric efficiency needs to be rectified.

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“…The flow rate of hydrogen supplied can also be controlled conveniently [7] . External mixture formation by means of port fuel injection also has been demonstrated to result in higher engine efficiencies, extended lean operation, lower cyclic variation and lower NO x production [8,9] . This is the consequence of the higher mixture homogeneity due to longer mixing times for PFI.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion Engine

Bakar¹,

Kamil²

2009

American J. of Engineering and Applied Sciences

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This study was focused on the engine performance of single cylinder hydrogen fueled port injection internal combustion engine. GT-Power was utilized to develop the model for port injection engine. One dimensional gas dynamics was represented the flow and heat transfer in the components of the engine model. The governing equations were introduced first, followed by the performance parameters and model description. Air-fuel ratio was varied from stoichiometric limit to a lean limit and the rotational speed varied from 2500 to 4500 rpm while the injector location was considered fixed in the midway of the intake port. The effects of air fuel ratio, crank angle and engine speed are presented in this study. From the acquired results show that the air-fuel ratio and engine speed were greatly influence on the performance of hydrogen fueled engine. It was shown that decreases the Brake Mean Effective Pressure (BMEP) and brake thermal efficiency with increases of the engine speed and air-fuel ratio however the increase the Brake Specific Fuel Consumption (BSFC) with increases the speed and air-fuel ratio. The cylinder temperature increases with increases of engine speed however temperature decreases with increases of air-fuel ratio. The pressure fluctuations increased substantially with increases of speed at intake port however rise of pressure at the end of the exhaust stroke lead to reverse flow into the cylinder past exhaust valve. The fluctuation amplitude responded to the engine speed in case of exhaust pressure were given less than the intake pressure. The volumetric efficiency increased with increases of engine speed and equivalent ratio. The volumetric efficiency of the hydrogen engines with port injection is a serious problem and reduces the overall performance of the engine. This emphasized the ability of retrofitting the traditional engines with hydrogen fuel with minor modifications.

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The Development of a Dual-Injection Hydrogen-Fueled Engine With High Power and High Efficiency

Cited by 28 publications

References 8 publications

Water: The Future’s Fuel

Water: The Future’s Fuel

Performance Evaluation of External Mixture Formation Strategy in Hydrogen Fueled Engine

Numerical Study on the Performance Characteristics of Hydrogen Fueled Port Injection Internal Combustion Engine

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