Performance evaluation of gasoline alternatives using a thermodynamic spark-ignition engine model

Gschwend, Dominik; Soltic, Patrik; Edinger, Philip; Wokaun, Alexander; Vogel, Frédéric

doi:10.1039/c7se00276a

Cited by 7 publications

(10 citation statements)

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“…An overall summary of the results for each compound can be found in Table . In addition, the values for gasoline, n -butanol, and α-pinene are listed as reference . As a reference, full HDO of the lignin pyrolysis oil to cyclohexane derivatives requires, on average, 7.05 mol H 2 /mol oil (minimum 4 mol H 2 /mol oil , maximum 10 mol H 2 /mol oil ).…”

Section: Resultsmentioning

confidence: 99%

“…However, as long as the droplets evaporate in a given time, there is no influence on the efficiency. In addition, the power requirement of the fuel pump is negligible; therefore, changes in its power requirement due to increases in viscosity are not expected to be significant. The opposite is true for changes in heat capacity, autoignition temperature/RON, and density, where even small changes are amplified.…”

Section: Resultsmentioning

confidence: 99%

“…As input parameters, the elemental composition (C x H y O z ), liquid density (ρ), liquid kinematic viscosity (ν), vapor heat capacity ( c p , g ), vapor pressure ( p vap ), enthalpy of vaporization ( h vap ), and the RON were required. Details of the model have been reported elsewhere …”

Section: Methodsmentioning

confidence: 99%

“…The suitability of a certain compound as replacement for gasoline was judged using an ICE model 26 . The model was built to investigate the influence of fuel properties on the performance of a Direct Injection (DI) SI engine.…”

Section: Ice Modelmentioning

confidence: 99%

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Optimum Fuel for Spark Ignition Engines from Lignin Pyrolysis Oil

et al. 2018

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Lignin is a high energy content material, which could be used as feedstock for future transportation fuels. To this aim, it needs to be liquefied and upgraded. Currently, the most promising way of upgrading is considered to be hydrodeoxygenation. By combining an upgrading reaction pathway network and a model of a spark ignition internal combustion engine, the fuel properties are linked to the degree of upgrading. This study answers the question how much upgrading is required to obtain the optimum fuel for a spark ignition engine. Depending on the optimization criteria (efficiency, specific CO 2 emissions or volumetric fuel consumption) different selections of compounds are identified both for summer and all year applications. Most of the compounds exhibit a significantly higher efficiency than gasoline at lower volumetric fuel consumption. Specific CO 2 emissions are expected to be marginally reduced compared to gasoline. Furthermore, this study confirms that the initial bio oil is not suitable as fuel and reveals that complete hydrodeoxygenation is not beneficial.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Ice Modelmentioning

confidence: 99%

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Optimum Fuel for Spark Ignition Engines from Lignin Pyrolysis Oil

et al. 2018

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“…n -Heptane and several higher n -alkanes have been widely investigated and employed as part of alternative gasoline, jet, and diesel fuels. − n -Heptane has also been employed as one of the primary crude materials in the chemical industry and the solvent in the extraction process universally …”

Section: Introductionmentioning

confidence: 99%

Measurement of the Speed of Sound in Near-Critical and Supercritical n-Heptane at Temperatures from (513.40 to 650.90) K and Pressures from (2.5 to 10.0) MPa

et al. 2018

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The speed of sound in n-heptane was measured by the Brillouin light scattering (BLS) method. The examined region is T = (513.40 to 650.90) K along seven isobaric lines at p = (2.5, 3.0, 4.0, 5.0, 6.0, 8.0, and 10.0) MPa, which was near the critical point of n-heptane. The relative expanded uncertainty (k = 2) of BLS experimental system is estimated to be <0.013 for the speed of sound measurement. The variation tendencies of the speed of sound with increasing temperature and pressure were illustrated. Moreover, the calculated results from the multiparameter equation of state (EOS) proposed by Span and Wagner were employed to assess the experimental data in this paper. The absolute average of the deviations (AAD) between the experimental data and the calculated results is 1.22% in the whole investigated p−T region.

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Integrated design of renewable fuels and their production processes: recent advances and challenges

König

Marquardt

Mitsos

et al. 2020

Current Opinion in Chemical Engineering

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Performance evaluation of gasoline alternatives using a thermodynamic spark-ignition engine model

Abstract: In light of climate change and the fact that surface transportation heavily relies on internal combustion engines, many different alternatives to gasoline have been proposed.

Cited by 7 publications

References 39 publications

Optimum Fuel for Spark Ignition Engines from Lignin Pyrolysis Oil

Optimum Fuel for Spark Ignition Engines from Lignin Pyrolysis Oil

Measurement of the Speed of Sound in Near-Critical and Supercritical n-Heptane at Temperatures from (513.40 to 650.90) K and Pressures from (2.5 to 10.0) MPa

Integrated design of renewable fuels and their production processes: recent advances and challenges

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