scholarly journals Thermodynamic Optimization for an Endoreversible Dual-Miller Cycle (DMC) with Finite Speed of Piston

Entropy ◽  
2018 ◽  
Vol 20 (3) ◽  
pp. 165 ◽  
Author(s):  
Zhixiang Wu ◽  
Lingen Chen ◽  
Huijun Feng
Keyword(s):  
Thermodynamic Optimization ◽  
Miller Cycle ◽  
Finite Speed

Thermodynamic optimization of Stirling heat engine with methane gas using finite speed thermodynamic model

Heat Transfer ◽  
2021 ◽  
Author(s):  
Kiran Mansuriya ◽  
Bansi D. Raja ◽  
Ali R. Yıldız ◽  
Anurag Mudgal ◽  
Vivek K. Patel
Keyword(s):  
Thermodynamic Model ◽  
Heat Engine ◽  
Thermodynamic Optimization ◽  
Finite Speed ◽  
Methane Gas

A Study on Combustion Characteristics of Spark-Ignited Engine with Different Late Intake Valve Closing for Miller Cycle

2015 ◽  
Vol 20 (3) ◽  
pp. 141-148
Author(s):  
J.H. Chung ◽  
S.J. Kang ◽  
J.S. Kim ◽  
S.C. Jeong ◽  
J.W. Lee
Keyword(s):  
Combustion Characteristics ◽  
Miller Cycle ◽  
Intake Valve

scholarly journals A Theoretical Study on the Thermodynamic Cycle of Concept Engine with Miller Cycle

Processes ◽  
2021 ◽  
Vol 9 (6) ◽  
pp. 1051
Author(s):  
Jungmo Oh ◽  
Kichol Noh ◽  
Changhee Lee
Keyword(s):  
Compression Ratio ◽  
Thermal Efficiency ◽  
Engine Performance ◽  
Thermodynamic Cycle ◽  
Expansion Ratio ◽  
Boost Pressure ◽  
Miller Cycle ◽  
Compression Pressure ◽  
Air Mass ◽  
Atkinson Cycle

The Atkinson cycle, where expansion ratio is higher than the compression ratio, is one of the methods used to improve thermal efficiency of engines. Miller improved the Atkinson cycle by controlling the intake- or exhaust-valve closing timing, a technique which is called the Miller cycle. The Otto–Miller cycle can improve thermal efficiency and reduce NOx emission by reducing compression work; however, it must compensate for the compression pressure and maintain the intake air mass through an effective compression ratio or turbocharge. Hence, we performed thermodynamic cycle analysis with changes in the intake-valve closing timing for the Otto–Miller cycle and evaluated the engine performance and Miller timing through the resulting problems and solutions. When only the compression ratio was compensated, the theoretical thermal efficiency of the Otto–Miller cycle improved by approximately 18.8% compared to that of the Otto cycle. In terms of thermal efficiency, it is more advantageous to compensate only the compression ratio; however, when considering the output of the engine, it is advantageous to also compensate the boost pressure to maintain the intake air mass flow rate.

Thermodynamic optimization of the Cu–As–S system

Calphad ◽  
2021 ◽  
Vol 72 ◽  
pp. 102247
Author(s):  
Viktoria Prostakova ◽  
Denis Shishin ◽  
Evgueni Jak
Keyword(s):  
Thermodynamic Optimization

Critical evaluation and the thermodynamic optimization of the Sn-O system

2021 ◽  
Author(s):  
Tiantian Yin ◽  
Jaesung Lee ◽  
Elmira Moosavi-Khoonsari ◽  
In-Ho Jung
Keyword(s):  
Critical Evaluation ◽  
Thermodynamic Optimization
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