Results 1 to 10 of about 45,527 (189)
Modeling and Performance Optimization of an Irreversible Two-Stage Combined Thermal Brownian Heat Engine [PDF]
Entropy, 2021 Based on finite time thermodynamics, an irreversible combined thermal Brownian heat engine model is established in this paper. The model consists of two thermal Brownian heat engines which are operating in tandem with thermal contact with three heat ...
Congzheng Qi +4 more
doaj +2 more sources
Space-fractional quantum heat engine based on level degeneracy [PDF]
Scientific Reports, 2021 In order to examine the work and efficiency of the space-fractional quantum heat engine, we consider a model of the space-fractional quantum heat engine which has a Stirling-like cycle with a single particle under infinite potential well as an example ...
Ekrem Aydiner
doaj +2 more sources
Solutions and Heat Engines [PDF]
Nature, 1929 IT is not usual for an author to complain of a review of his book; but I confess that the theory of osmotic pressure put forward (in place of an account of my own reasoning) by the reviewer, in NATURE of Feb. 16, of my book “Gases and Liquids”, almost took my breath away. As the reviewer's reply, in NATURE of Mar. 9, to Prof.
J. S. Haldane
openalex +3 more sources
A sublimation heat engine. [PDF]
Nat Commun, 2015 AbstractHeat engines are based on the physical realization of a thermodynamic cycle, most famously the liquid–vapour Rankine cycle used for steam engines. Here we present a sublimation heat engine, which can convert temperature differences into mechanical work via the Leidenfrost effect.
Wells GG +3 more
europepmc +7 more sources
The power of a critical heat engine. [PDF]
Nat Commun, 2016 AbstractSince its inception about two centuries ago thermodynamics has sparkled continuous interest and fundamental questions. According to the second law no heat engine can have an efficiency larger than Carnot’s efficiency. The latter can be achieved by the Carnot engine, which however ideally operates in infinite time, hence delivers null power.
Campisi M, Fazio R.
europepmc +10 more sources
Effect of Finite-Size Heat Source's Heat Capacity on the Efficiency of Heat Engine. [PDF]
Entropy (Basel), 2020 Heat engines used to output useful work have important practical significance, which, in general, operate between heat baths of infinite size and constant temperature. In this paper, we study the efficiency of a heat engine operating between two finite-size heat sources with initial temperature difference.
Ma YH.
europepmc +8 more sources
Superradiant Quantum Heat Engine. [PDF]
Sci Rep, 2015 AbstractQuantum physics revolutionized classical disciplines of mechanics, statistical physics and electrodynamics. One branch of scientific knowledge however seems untouched: thermodynamics. Major motivation behind thermodynamics is to develop efficient heat engines.
Hardal AÜ, Müstecaplıoğlu ÖE.
europepmc +9 more sources
Revisiting Endoreversible Carnot Engine: Extending the Yvon Engine [PDF]
EntropyCurzon and Ahlborn’s 1975 paper, a pioneering work that inspired the birth of the field of finite-time thermodynamics, unveiled the efficiency at maximum power (EMP) of the endoreversible Carnot heat engine, now commonly referred to as the Curzon–Ahlborn
Xiu-Hua Zhao, Yu-Han Ma
doaj +2 more sources
Fluctuations in heat engines [PDF]
Journal of Physics A: Mathematical and Theoretical, 2021 Abstract At the dawn of thermodynamics, Carnot’s constraint on efficiency of heat engines stimulated the formulation of one of the most universal physical principles, the second law of thermodynamics. In recent years, the field of heat engines acquired a new twist due to enormous efforts to develop and describe microscopic machines based
Viktor Holubec, Artem Ryabov
openaire +2 more sources
Equivalent Heat Load Test on Hot Aircraft Engine Components [PDF]
Archives of Foundry Engineering, 2023 The paper presents the assumptions and methodology for investigating equivalent heat load testing of hot aircraft engine components. The basic heat loads occurring in an aircraft engine during aircraft flight are characterised.
M. Mróz +3 more
doaj +1 more source