Quantum Lenoir Engine with a Single Particle System in a One Dimensional Infinite Potential Well

Saputra, Yohanes Dwi

doi:10.26418/positron.v9i2.34850

Cited by 6 publications

(6 citation statements)

References 13 publications

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“…First, the thermal efficiency of the quantum Brayton engine is higher because the working substance is in the form of a single particle which has a Laplace constant value is 3, while the classical version has a working substance in the form of monoatomic gas with a Laplace constant value is 5/3. The higher the Laplace constant of a working substance, the higher the efficiency of the engine [11].…”

Section: Discussionmentioning

confidence: 99%

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Quantum-Mechanical Brayton Engine for the Nonrelativistic Particle Trapped in a Symmetric Potential Box

Abdillah

Saputra

2020

Positron

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A theoretical quantum Brayton engine research has been carried out using a potential box system to increase its thermal efficiency. The method applied in this research is a classical thermodynamics system model in the form of a piston tube containing a monatomic ideal gas analogous to a quantum model in the form of a potential box containing one particle. The efficiency formulation of the quantum Brayton engine obtained from this study is following the classical version. However, the efficiency value obtained on a quantum Brayton engine is higher when compared to its classic. It happens because the value of the Laplace constant owned by the Brayton quantum version is 3, while the classic version is 5/3.

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Section: Discussionmentioning

confidence: 99%

“…Then, this classical system is substituted by a quantum system. The quantum system applied can be either an infinite potential well [3][4][5][6][7][8][9][10][11] or a harmonic oscillator [12][13][14] to produce an engine efficiency that exceeds the classical version.…”

Section: Introductionmentioning

confidence: 99%

Quantum-Mechanical Brayton Engine for the Nonrelativistic Particle Trapped in a Symmetric Potential Box

Abdillah

Saputra

2020

Positron

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“…In the macro thermodynamic cycle, the system can work externally through the reciprocating motion of the piston. In the quantum cycle, according to [62,63], it can be assumed that the potential well wall of OIPW reciprocates, thus realizing the external work of the system. The energy eigenvalue and wave function of the system are functions of the width (L) of the potential well.…”

Section: Quantum-mechanical Description Of the Systemmentioning

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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“…The study of relativistic QHE based on a massless boson itself was initiated by Akbar et al in 2018 [28]. Non-relativistic QLE with two [29] and multiple [30] energy levels has been studied with the working substance of a spinless particle in the infinite potential box. However, no research has studied the effect of heat leakage on the performance of QLE based on a boson particle in the infinite potential box, even though the study of a boson is as important as a fermion as the working substance of relativistic QLE.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Leakage on Relativistic Quantum Lenoir Engine Performance with a Massless Boson as Working Substance in the Infinite Potential Box

Saputra,

Rahastama,

Firdaus

2024

Positron

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A study on the effect of heat leakage on power output, thermal efficiency, and reversibility rate in a relativistic quantum Lenoir engine has been conducted. Initially, we analogize the quantum working substance of the engine, a massless boson trapped in an infinite potential box with a movable right wall, as an ideal gas confined in a pistoned cylinder. Then, the total work, heat input, and heat output of each engine cycle which consists of isochoric, adiabatic expansion, and isobaric compression are extracted by applying the concept of quantum thermodynamics. Finally, power output, thermal efficiency, and reversibility rate of the engine are calculated for different variations of the heat leakage constant. The results are the relationship between several parameters which are expressed in the graph of thermal efficiency vs. compression ratio, graph of efficiency/normal efficiency vs. compression ratio, power output vs. efficiency, and reversibility rate vs. compression ratio. The conclusion is that an increase in heat leakage has an effect on reducing the efficiency and reversibility rate of the engine but does not affect its power output. This work will provide a new chapter for further research related to the use of the boson particle as a working substance in the quantum heat engine, especially the study of the heat leakage effect on engine performance.

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Quantum Lenoir Engine with a Single Particle System in a One Dimensional Infinite Potential Well

Cited by 6 publications

References 13 publications

Quantum-Mechanical Brayton Engine for the Nonrelativistic Particle Trapped in a Symmetric Potential Box

Quantum-Mechanical Brayton Engine for the Nonrelativistic Particle Trapped in a Symmetric Potential Box

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

Effect of Heat Leakage on Relativistic Quantum Lenoir Engine Performance with a Massless Boson as Working Substance in the Infinite Potential Box

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