Power output and efficiency optimization of endoreversible non-isothermal chemical engine via Lewis analogy

Chen, Lingen; Xia, Shaojun

doi:10.1007/s11431-022-2281-8

Cited by 33 publications

(1 citation statement)

References 74 publications

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“…Since Scovil and Schulz-DuBois [7] first proposed a three-level quantum heat engine model in 1959, many scholars have proposed quantum energy conversion devices and quantum thermodynamic cycles using various quantum systems as working fluids, such as particles in one-dimensional infinite potential well (OIPW) [8], relativistic particles in OIPW [9], spin system [10], resonance subsystem [11], quantum gas [12], etc. Using these common quantum working media (WM) and applying finite-time thermodynamics (FTT) [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27], many scholars have studied the thermodynamic properties of quantum Stirling cycle [8], Carnot cycle [10,11,28], Diesel cycle [29], Brayton cycle [30,31], Otto cycle [32,33], etc. and got numerous meaningful results.…”

Section: Introductionmentioning

confidence: 99%

Multi-Objective Optimization for Quantum Rectangular Cycle with Power, Efficiency and Efficient Power

Xie,

Chen,

Yin

et al. 2024

Acta Phys. Pol. A

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This paper establishes a quantum rectangular heat engine model by applying finite-time thermodynamics. The working medium is countless particles trapped in a one-dimensional infinite potential well. Taking into account heat leakage between the system and the outside, expressions for thermal efficiency (η), dimensionless power ( P ), and dimensionless efficient power ( Wep) of quantum rectangular heat engine are derived, and its optimal performance is studied. System performance P , η, and Wep are optimized firstly by taking the width ratio of the potential well as the optimization variable. The outcomes show that the relationship curve between P and η is a loop-shaped curve. With an increase in heat leakage coefficient, the optimal design range of the quantum rectangular heat engine becomes smaller. The relationship curve between the efficient power and width ratio of the potential well is parabolic-like. The relationship curve between Wep and η is a loop-shaped curve. The efficiency of the quantum rectangular heat engine at Wep max operating point is greater than that at Pmax operating point. Secondly, multi-objective optimization is applied with η, P , and Wep as optimization objectives by applying NSGA-II, and the optimal design scheme is achieved by applying TOPSIS, LINMAP, and Shannon entropy decision-making approaches. The smallest deviation index inferred by the Shannon entropy approach is 0.0269. The design scheme is closest to the ideal scheme. topics: finite-time thermodynamics; quantum rectangular heat engine (QRHE); power, multi-objective optimization, thermal efficiency and efficient power

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