Experimental study on heat and exergy balance of a dual-fuel combined injection engine with hydrogen and gasoline

Sun, Ping; Liu, Ze; Yu, Xiumin; Yao, Chuanzhao; Guo, Zezhou; Yang, Song

doi:10.1016/j.ijhydene.2019.06.149

Cited by 31 publications

(21 citation statements)

References 24 publications

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“…The relation (2) shows that the excess air coefficient can assume different values for the same air mass m a by appropriately selecting fuel doses 1 and 2 with different stoichiometric excess air coefficients.…”

Section: Fuel Selectionmentioning

confidence: 99%

“…According to the European Environment Agency, transport in 2017 was responsible for 27% of all greenhouse gas emissions in Europe-2.2% more than in the year prior [1]. Other reasons for the development of modern propulsion sources include striving to reduce energy consumption Energies 2021, 14, 2729 2 of 20 for vehicle propulsion, as well as the increasingly stringent exhaust emission norms and regulations [2].…”

Section: Introductionmentioning

confidence: 99%

“…A number of dual-fuel solutions also exist for spark ignition engines, including gasoline (DI) and ethanol (PFI) [10], or in reverse configuration [11], gasoline (PFI) and diesel oil (DI) [12], gasoline (DI) and LPG (PFI) [13], gasoline (DI or PFI) and hydrogen (PFI or DI) [2], and methanol (DI) and hydrogen (PFI) [14]. Work has also been carried out using other fuels with the above-mentioned injection systems for these fuels [15,16].…”

Section: Introductionmentioning

confidence: 99%

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Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Pielecha

Wierzbicki

Sidorowicz³

et al. 2021

Energies

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The development of internal combustion engines involves various new solutions, one of which is the use of dual-fuel systems. The diversity of technological solutions being developed determines the efficiency of such systems, as well as the possibility of reducing the emission of carbon dioxide and exhaust components into the atmosphere. An innovative double direct injection system was used as a method for forming a mixture in the combustion chamber. The tests were carried out with the use of gasoline, ethanol, n-heptane, and n-butanol during combustion in a model test engine—the rapid compression machine (RCM). The analyzed combustion process indicators included the cylinder pressure, pressure increase rate, heat release rate, and heat release value. Optical tests of the combustion process made it possible to analyze the flame development in the observed area of the combustion chamber. The conducted research and analyses resulted in the observation that it is possible to control the excess air ratio in the direct vicinity of the spark plug just before ignition. Such possibilities occur as a result of the properties of the injected fuels, which include different amounts of air required for their stoichiometric combustion. The studies of the combustion process have shown that the combustible mixtures consisting of gasoline with another fuel are characterized by greater combustion efficiency than the mixtures composed of only a single fuel type, and that the influence of the type of fuel used is significant for the combustion process and its indicator values.

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Section: Fuel Selectionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Pielecha

Wierzbicki

Sidorowicz³

et al. 2021

Energies

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show abstract

“…An analysis of gasoline and hydrogen injection using the indirect and direct injection technique was carried out by Sun et al [39]. Two variants of fuel injection were used in that research: indirect and direct injection with gasoline (PFI + GDI), and indirect injection with gasoline with direct injection of hydrogen (PFI + HDI  hydrogen direct injection).…”

Section: Injection Of Gasoline With Other Fuelsmentioning

confidence: 99%

Effects of mixture formation strategies on combustion in dual-fuel engines – a review

Pielecha¹,

Sidorowicz²

2021

Combustion Engines

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The article presents an overview of technical solutions for dual fuel systems used in internal combustion engines. It covers the historical and contemporary genesis of using two fuels simultaneously in the combustion process. The authors pay attention to the value of the excess air coefficient in the cylinder, as the ignitability of the fuel dose near the spark plug is a critical factor. The mixture formation of compression ignition based systems are also analyzed. The results of research on indirect and direct injection systems (and their combinations) have been presented. Research sections were separated based to the use of gasoline with other fuels or diesel oil with other fuels. It was found that the use of two fuels in different configurations of the fuel supply systems extends the conditions for the use of modern combustion systems (jet controlled compression ignition, reactivity controlled compression ignition, intelligent charge compression ignition, premixed charge compression ignition), which will enable further improvement of combustion efficiency.

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“…El balance energético de los MCI es básicamente un estudio de la primera ley de la termodinámica, que también se denomina balance de energía, balance de calor o balance térmico [20]. El análisis del balance térmico es una forma eficiente de conocer el flujo de energía, permite al diseñador evaluar la variación de energía interna en función de las transferencias de energía a través de los límites como calor o trabajo y las entalpías asociadas con el flujo de masa que cruza estos límites, para luego presentar un método altamente potencial que reduzca el consumo de combustible en los motores [24].…”

Section: Cálculo Del Balance Térmicounclassified

Evaluación experimental de un motor de encendido provocado bajo diferentes gasolinas

2021

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El motor de combustión interna de encendido provocado es una máquina térmica que permite obtener una potencia mecánica a partir de la energía química de un combustible. El presente trabajo tuvo como objetivo evaluar el desempeño de un motor de combustión interna mediante el balance de energía y exergía, bajo el uso individual de las tres gasolinas comercializadas en el Ecuador (súper, extra y ecopaís). La metodología experimental consistió en la puesta en marcha bajo el uso individual de las gasolinas hasta alcanzar su máxima potencia a una velocidad de giro del motor, donde se tomaron mediciones de temperatura, consumo específico del combustible y la relación aire combustible para un tiempo de tres minutos. Los resultados muestran una eficiencia energética de 11,31 % para gasolina súper, 10,75 % para gasolina extra y 10,39 % para gasolina ecopaís. En lo relacionado a la eficiencia exergética se estableció un 58,81 % para la gasolina súper, 58,89 % para la gasolina extra y un 59,19 % para la gasolina ecopaís. Los resultados permiten concluir que existe un potencial exergético de mejoramiento que puede ser una oportunidad para aumentar la eficiencia energética.

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Experimental study on heat and exergy balance of a dual-fuel combined injection engine with hydrogen and gasoline

Cited by 31 publications

References 24 publications

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Combustion Thermodynamics of Ethanol, n-Heptane, and n-Butanol in a Rapid Compression Machine with a Dual Direct Injection (DDI) Supply System

Effects of mixture formation strategies on combustion in dual-fuel engines – a review

Evaluación experimental de un motor de encendido provocado bajo diferentes gasolinas

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