Performance analysis of an air-standard Miller cycle with considerations of heat loss as a percentage of fuel's energy, friction and variable specific heats of working fluid

Lin, Jiann-Chang; Hou, Shuhn-Shyurng

doi:10.1016/j.ijthermalsci.2007.02.002

Cited by 47 publications

(25 citation statements)

References 18 publications

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“…Using the model of SH varied as a linear function of the temperature in [84], the authors of [96,[238][239][240][241] studied the power output and efficiency performance characteristics (work output and efficiency performance characteristics) of EMC [96,238,241] and an irreversible Miller cycle [96,239,240], and investigated the influences of VSH and the two losses on cycle performance. Considering HTL, FL and IIL and fixing the cycle maximum temperature, Yang and He et al [242] [96,[238][239][240][241][242][243][244][245][246], obtained the power output and efficiency performance characteristics of an irreversible Miller cycle, and investigated the influences of their design parameters on cycle performance. Considering HTL, FL and IIL and fixing the cycle maximum temperature, Ge [84] used the VSH model established in [87,96,[238][239][240][241][242][243][244][245][246][247][248][249], studied the optimum EF performance of an irreversible Miller cycle, and analyzed the influences of the three losses and VSH on cycle EF performance.…”

Section: The Progress In Optimum Performance Studies For As Miller Cymentioning

confidence: 99%

“…Considering HTL, FL and IIL and fixing the cycle maximum temperature, Yang and He et al [242] [96,[238][239][240][241][242][243][244][245][246], obtained the power output and efficiency performance characteristics of an irreversible Miller cycle, and investigated the influences of their design parameters on cycle performance. Considering HTL, FL and IIL and fixing the cycle maximum temperature, Ge [84] used the VSH model established in [87,96,[238][239][240][241][242][243][244][245][246][247][248][249], studied the optimum EF performance of an irreversible Miller cycle, and analyzed the influences of the three losses and VSH on cycle EF performance.…”

Section: The Progress In Optimum Performance Studies For As Miller Cymentioning

confidence: 99%

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Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Chen

Sun

2016

Entropy

139

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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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Section: The Progress In Optimum Performance Studies For As Miller Cymentioning

confidence: 99%

Section: The Progress In Optimum Performance Studies For As Miller Cymentioning

confidence: 99%

Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Chen

Sun

2016

Entropy

139

View full text Add to dashboard Cite

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“…Zhao and Chen [9] conducted a performance analysis on irreversible Miller cycle engine by considering internal irreversibilities of the Miller cycled engine. Lin and Hou [10] studied on an air-standard Miller cycle and analyzed the performance of the cycle taking into account friction losses, variable specific heats of the air and heat dissipation as a percentage of energy released from burnt fuel. Ebrahimi [11,12] analyzed the performance of an air standard Miller cycle by using finite-time thermodynamics.…”

Section: Introductionmentioning

confidence: 99%

Second Law Analysis on an Air-Standard Miller Engine

Ebrahimi

2016

Acta Phys. Pol. A

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Performance analysis has been carried out for air-standard Miller engine using second law analysis. The relations of the second law efficiency versus compression ratio, the second law efficiency versus first law efficiency as well as the exergy versus compression ratio are obtained. The results show that the curve of second law efficiency versus first law efficiency is a parabolic-like one. The results also show that, throughout the compression ratio range, the second law efficiency increases when the expansion-compression ratio increases.

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“…Al-Sarkhi et al (2007) studied the effects of different specific heat models on the performance of an irreversible Miller cycle engine. Lin et al (2008) examined the effects of the variable specific heat of working fluids, friction, and heat loss characterized by a percentage of the fuel's energy on the net work output and thermal efficiency of an air standard Miller cycle.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic model and optimization of a miller cycle applied on a turbocharged diesel engine

Cui

Deng

2014

JTST

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A new thermodynamic model for turbocharged diesel engines is developed for Miller cycle analysis and optimization. The effects of turbocharger efficiency, Miller degree, combustion mode, and air fuel ratio on engine efficiency, power, and NOx emissions are analyzed by the model. Engine performance is optimized by the thermodynamic model under the constraints of maximum cylinder pressure and NOx emissions. Although the Miller cycle is beneficial for NOx emission control, it has adverse effects on engine thermal efficiency and power without parameter redesign. Turbocharger efficiency is a key factor in highly boosted Miller cycle diesel engines. The trade-off relationships among thermal efficiency, break mean effective pressure, and NOx emissions can be improved remarkably by highly efficient turbochargers. Measures with high geometric compression ratio and boost pressure and intensified Miller degree must be applied to reduce NOx emissions and improve thermal efficiency simultaneously. The results provide guidance in designing a Miller cycle system for turbocharged diesel engines.

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Performance analysis of an air-standard Miller cycle with considerations of heat loss as a percentage of fuel's energy, friction and variable specific heats of working fluid

Cited by 47 publications

References 18 publications

Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Progress in Finite Time Thermodynamic Studies for Internal Combustion Engine Cycles

Second Law Analysis on an Air-Standard Miller Engine

Thermodynamic model and optimization of a miller cycle applied on a turbocharged diesel engine

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