Results 71 to 80 of about 2,896,907 (259)
A Systematic Literature Review: An Input‐Transformation‐Output Model for Coal‐Fired Plant Operations
Energy Science &Engineering, EarlyView.ABSTRACT Purpose This study identifies and organizes improvement strategies that enable flexible operations in coal‐fired power plants through the lens of an input‐transformation‐output (ITO) model. Design/Methodology/Approach A rigorous systematic literature review (SLR) process, consisting of ten steps in three stages, was used to extract and ...
Meelan Roopa +2 more
wiley +1 more source
Regarding the application limitations of the Carnot, s theorem
Известия высших учебных заведений: Проблемы энергетики, 2019 The purpose of this article is to perform a comparative study of a reversible heat engine with an ideal or real gas as a working fluid and to determine the change in its efficiency depending on the thermodynamic characteristics of the working fluid.
V. G. Kiselev
doaj +1 more source
Minimal universal quantum heat machine
, 2013 In traditional thermodynamics the Carnot cycle yields the ideal performance bound of heat engines and refrigerators. We propose and analyze a minimal model of a heat machine that can play a similar role in quantum regimes. The minimal model consists of a
Alicki, Robert +2 more
core +1 more source
Energy Science &Engineering, EarlyView.ABSTRACT In this study, three waste‐to‐energy (WTE) operational scenarios, that is, electricity‐only production, fresh water‐only production, and combined electricity and fresh water generation, were evaluated using Thermoflow software. The assessment was conducted based on the thermodynamic, economic, and environmental performance of a municipal solid
Seyed Farhan Moosavian +5 more
wiley +1 more source
Effect of Machine Entropy Production on the Optimal Performance of a Refrigerator
Entropy, 2020 The need for cooling is more and more important in current applications, as environmental constraints become more and more restrictive. Therefore, the optimization of reverse cycle machines is currently required.
Michel Feidt, Monica Costea
doaj +1 more source
Autonomous Artificial Molecular Motors and Pumps
ChemSystemsChem, EarlyView.Autonomous energy consumption is the only way to introduce molecular motors into more sophisticated, larger systems, capable of life‐like behavior. We reviewed a selection of the most recent advances in the field molecular motors focusing on those capable of performing continuous and autonomous motion under constant experimental conditions, that is ...
Chiara Taticchi +2 more
wiley +1 more source
Efficiency of a thermodynamic motor at maximum power
, 2011 Several recent theories address the efficiency of a macroscopic thermodynamic motor at maximum power and question the so-called "Curzon-Ahlborn (CA) efficiency." Considering the entropy exchanges and productions in an n-sources motor, we study the ...
B. Gaveau +8 more
core +1 more source
IET Smart Energy Systems, EarlyView.This review focuses on the recent advances in the key research and technology development of transcritical CO2 heat pumps and integrated energy systems including sustainable ‘green’ heating, energy storage, electro‐thermal storage, waste heat recovery and disruptive electrification of renewable energy, combined heating and power, and new hybrid systems.
Lixin Cheng, Hongzhi Li, Haijun Wang
wiley +1 more source
Attaining Carnot efficiency with quantum and nanoscale heat engines
npj Quantum Information, 2021 A heat engine operating in the one-shot finite-size regime, where systems composed of a small number of quantum particles interact with hot and cold baths and are restricted to one-shot measurements, delivers fluctuating work.
Mohit Lal Bera +2 more
doaj +1 more source
, 2015 [...] By the beginning of the 20th century, the principles of thermodynamics were summarized into the so-called four laws, which were, as it turns out, definitive negative answers to the doomed quests for perpetual motion machines.
Apertet, Yann +3 more
core +1 more source