Effects of charge properties on exergy balance in spark ignition engines

Sezer, İsmet; Bilgin, Atilla

doi:10.1016/j.fuel.2012.09.078

Cited by 38 publications

(15 citation statements)

References 12 publications

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“…Although the thermal efficiency was alike for all fuels considering the same operating conditions, the Second Law showed different destruction of exergy during the combustion process between the fuels [8,16]. Considering spark ignition engines, Sezer and Bilgin [17] equivalence ratios and beyond this value there is no further contribution to work output.…”

Section: Introductionmentioning

confidence: 86%

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

López

Quintana

Ruiz

et al. 2014

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 86%

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

López

Quintana

Ruiz

et al. 2014

Energy Conversion and Management

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“…On the other hand, cooling water temperature at outlet under mapping characteristics can be reached up to 90 1C and it is being unlike the exhaust gas temperature, cooling water temperature nearly has no fluctuations. Contrast of temperature characteristics between exhaust gas and cooling water determines the difference of their energy characteristics especially exergy characteristics [16,17].…”

Section: Air Conditioning (Ac) Of Vehiclesmentioning

confidence: 99%

An overview on adsorption cooling systems powered by waste heat from internal combustion engine

Hamdy

Askalany

Harby

et al. 2015

Renewable and Sustainable Energy Reviews

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“…Increasing the temperature at which combustion occurs reduces the exergy destruction by the intermolecular heat transfer occurring at finite temperature differences during the combustion process [16]. However, strategies to reduce the exergy destruction do not necessarily lead to an increase in the IC engine efficiency [10,17,18]. This is because exergy represents the maximum work that can be obtained by a theoretical interaction between the system and environment; it does not consider the specific work extraction methods.…”

Section: Introductionmentioning

confidence: 99%

Analytical Approach to the Exergy Destruction and the Simple Expansion Work Potential in the Constant Internal Energy and Volume Combustion Process

Song

2020

Energies

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The exergy destruction due to the irreversibility of the combustion process has been regarded as one of the key losses of an internal combustion engine. However, there has been little discussion on the direct relationship between the exergy destruction and the work output potential of an engine. In this study, an analytical approach is applied to discuss the relationship between the exergy destruction and efficiency by assuming a simple thermodynamic system simulating an internal combustion engine operation. In this simplified configuration, the exergy destruction during the combustion process is mainly affected by the temperature, which supports well-known facts in the literature. However, regardless of this exergy destruction, the work potential in this simple engine architecture is mainly affected by the pressure during the combustion process. In other words, if these pressure conditions are the same, increasing the system temperature to reduce the exergy destruction does not lead to an increase in the expansion work; rather, it only results in an increase in the remaining exergy after expansion. In a typical internal combustion engine, temperatures before combustion timing must be increased to reduce the exergy destruction, but increasing pressure before combustion timing is a key strategy to increase efficiency.

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Effects of charge properties on exergy balance in spark ignition engines

Cited by 38 publications

References 12 publications

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

Effect of the use of olive–pomace oil biodiesel/diesel fuel blends in a compression ignition engine: Preliminary exergy analysis

An overview on adsorption cooling systems powered by waste heat from internal combustion engine

Analytical Approach to the Exergy Destruction and the Simple Expansion Work Potential in the Constant Internal Energy and Volume Combustion Process

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