Effect of Piston Friction on the Performance of SI Engine: A New
                    Thermodynamic Approach

Abu‐Nada, Eiyad; Al‐Hinti, I.; Al–Sarkhi, A.; Akash, Bilal

doi:10.1115/1.2795777

Cited by 26 publications

(23 citation statements)

References 38 publications

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“…Refs. [89][90][91][92] advanced the SH model varied with temperature with nonlinear relation which was closer to practice:…”

Section: The Study Featuresmentioning

confidence: 85%

“…Considering HTL, FL and IIL and fixing the cycle maximum temperature, Ge et al [84,167] adopted the VSH model advanced in [89][90][91][92], investigated the optimum power and efficiency performance [84,167], as well as the optimum EF performance [84] of an irreversible Diesel cycle, and examined the influences of the three losses on cycle performance. Furthermore, Aithal [168,169] studied the influence of exhaust gas recycle on the power output and efficiency performance characteristics of an irreversible Diesel cycle when the SH of WF were nonlinear functions of the temperature.…”

Section: The Progress In Optimum Performance Studies For As Diesel Cyclementioning

confidence: 99%

“…Furthermore, Aithal [168,169] studied the influence of exhaust gas recycle on the power output and efficiency performance characteristics of an irreversible Diesel cycle when the SH of WF were nonlinear functions of the temperature. Considering IIL and fixing the cycle maximum temperature, Açıkkalp and Yamık [170] used the VSH model advanced in [89][90][91][92], optimized the maximum available work output of an irreversible Diesel cycle with CR and pressure ratio as optimization parameters, and derived the optimum CR and pressure ratio.…”

Section: The Progress In Optimum Performance Studies For As Diesel Cyclementioning

confidence: 99%

“…Based on efficient power criteria, Patodi and Maheshwari [178] studied the Atkinson cycle performance when SH of WF varied linearly with temperature and analyzed the effects of some design parameters (including maximum temperature ratio, maximum volume ratio and maximum pressure ratio) on cycle performance under MP, MPD and MEP conditions. Considering HTL, FL and IIL and fixing the cycle maximum temperature, Ge et al [84,184] adopted the VSH model advanced in [89][90][91][92], investigated the optimum power and efficiency performance [84,184], as well as the optimum EF performance [84] of an irreversible Atkinson cycle, and examined the influences of the three losses on cycle performance.…”

Section: The Progress In Optimum Performance Studies For As Atkinson mentioning

confidence: 99%

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Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Chen

Sun

2016

Entropy

138

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Abstract:On the basis of introducing the origin and development of finite time thermodynamics (FTT), this paper reviews the progress in FTT optimization for internal combustion engine (ICE) cycles from the following four aspects: the studies on the optimum performances of air standard endoreversible (with only the irreversibility of heat resistance) and irreversible ICE cycles, including Otto, Diesel, Atkinson, Brayton, Dual, Miller, Porous Medium and Universal cycles with constant specific heats, variable specific heats, and variable specific ratio of the conventional and quantum working fluids (WFs); the studies on the optimum piston motion (OPM) trajectories of ICE cycles, including Otto and Diesel cycles with Newtonian and other heat transfer laws; the studies on the performance limits of ICE cycles with non-uniform WF with Newtonian and other heat transfer laws; as well as the studies on the performance simulation of ICE cycles. In the studies, the optimization objectives include work, power, power density, efficiency, entropy generation rate, ecological function, and so on. The further direction for the studies is explored.

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“…Refs. [89][90][91][92] advanced the SH model varied with temperature with nonlinear relation which was closer to practice:…”

Section: The Study Featuresmentioning

confidence: 85%

Section: The Progress In Optimum Performance Studies For As Diesel Cyclementioning

confidence: 99%

Section: The Progress In Optimum Performance Studies For As Diesel Cyclementioning

confidence: 99%

Section: The Progress In Optimum Performance Studies For As Atkinson mentioning

confidence: 99%

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Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Chen

Sun

2016

Entropy

138

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“…The designs of the piston skirt and rings are essential for overall engine efficacy [64]. The piston ring packs are very important, as they contribute to the engine's fuel consumption.…”

Section: Design Considerations For Pistonsmentioning

confidence: 99%

The use of different types of piston in an HCCI engine: A review

Aljaberi¹,

Hairuddin²,

Aziz³

2017

Int. J. Automot. Mech. Eng.

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Homogenous charge compression ignition (HCCI) combines the advantages of spark ignition (SI) and compression ignition (CI) engines to improve fuel consumption and emission levels. HCCI engines have the advantage of relatively higher engine efficiency than SI engines while maintaining lower emissions levels than CI engines. Combustion in HCCI engines occurs spontaneously at any location once the fuel-air mixture reaches its chemical activation energy. Pistons have a major effect on controlling the combustion inside the combustion chamber of an HCCI engine. Many researchers have studied various designs for pistons to improve HCCI engines. The aim of this study is to explore these different types of pistons and their designs in terms of improving the performance of HCCI engines fuelled with gasoline. The most common pistons used in HCCI are twostroke pistons, bowl types, specialised pistons, and dome-shaped pistons; each offers distinct advantages and disadvantages. Software simulation is the latest way of determining the best piston to be used for HCCI engines, as it is more cost effective and less time consuming than experiments. Overall, bowl type pistons offer reduced fuel consumption and a higher load capacity when used in an HCCI engine.

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