Results 31 to 40 of about 2,967,352 (198)
Limiting Performance of the Ejector Refrigeration Cycle with Pure Working Fluids
Entropy, 2023 An ejector refrigeration system is a promising heat-driven refrigeration technology for energy consumption. The ideal cycle of an ejector refrigeration cycle (ERC) is a compound cycle with an inverse Carnot cycle driven by a Carnot cycle. The coefficient
Jiawei Fu +4 more
doaj +1 more source
The Principle of Least Action for Reversible Thermodynamic Processes and Cycles
Entropy, 2018 The principle of least action, which is usually applied to natural phenomena, can also be used in optimization problems with manual intervention. Following a brief introduction to the brachistochrone problem in classical mechanics, the principle of least
Tian Zhao, Yu-Chao Hua, Zeng-Yuan Guo
doaj +1 more source
Case Studies in Thermal Engineering, 2022 In this study, the ideal cycles with finite heat capacity rates is investigated theoretically to maximize power generation using a sequential Carnot cycle model.
Soyeon Kim, Young-Jin Baik, Minsung Kim
doaj +1 more source
Chemical and Mechanical Aspect of Entropy-Exergy Relationship
Entropy, 2021 The present research focuses the chemical aspect of entropy and exergy properties. This research represents the complement of a previous treatise already published and constitutes a set of concepts and definitions relating to the entropy–exergy ...
Pierfrancesco Palazzo
doaj +1 more source
Entropy, 2021 An irreversible Carnot cycle engine operating as a closed system is modeled using the Direct Method and the First Law of Thermodynamics for processes with Finite Speed.
Monica Costea +4 more
doaj +1 more source
Metal Consumption of Heat Engines and Heat Capacity of their Working Fluids [PDF]
Problems of the Regional Energetics, 2020 Ensuring efficient energy supply in general and heat supply in particular together with creation of air conditioning systems is a very urgent task of modern energy industry, particularly acute in the absence of large centralized energy sources.
Kiselev V.G. +2 more
doaj +1 more source
Entropy, 2018 The goal of this comment note is to express my concerns about the recent paper by Tian Zhao et al. (Entropy 2018, 20, 542). It is foreseen that this comment will stimulate a fruitful discussion of the issues involved.
Edward Bormashenko
doaj +1 more source
Development of a Semi-Empirical Model for Estimating the Efficiency of Thermodynamic Power Cycles
Sci, 2023 Power plants constitute the main sources of electricity production, and the calculation of their efficiency is a critical factor that is needed in energy studies.
Evangelos Bellos
doaj +1 more source
Quantum heat engines with Carnot efficiency at maximum power
Physical Review Research, 2022 Heat engines constitute the major building blocks of modern technologies. However, conventional heat engines with higher power yield lesser efficiency and vice versa and respect various power-efficiency trade-off relations.
Mohit Lal Bera +3 more
doaj +1 more source