Results 71 to 80 of about 2,872,752 (258)
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
Comparing exergy and heat pump work in distillation systems
AIChE Journal, EarlyView.Abstract This study compares the exergy supplied to a distillation column with the actual energy consumption of a heat pump‐assisted distillation (HPAD) system. It evaluates the reliability of exergy as a proxy for heat pump work demand in such systems.
Akash Sanjay Nogaja +2 more
wiley +1 more source
Optimizing thermodynamic trajectories using evolutionary and gradient-based reinforcement learning [PDF]
, 2019 Using a model heat engine, we show that neural network-based reinforcement learning can identify thermodynamic trajectories of maximal efficiency. We consider both gradient and gradient-free reinforcement learning.
Beeler, Chris +5 more
core
, 1997 An equilibrium reversible cycle with a certain engine to transduce the energy of any chemical reaction into mechanical energy is proposed. The efficiency for chemical energy transduction is also defined so as to be compared with Carnot efficiency ...
Alberts B. +7 more
core +1 more source
Batteries &Supercaps, EarlyView.Electricity storage is vital for the renewable energy transition, with lithium‐ion batteries (LIBs) as the leading technology. The LIB electrolyte composition determines their performance, lifespan, and charging capacity. Sensitive to water, LIB electrolytes require inert conditions for their analysis.
Julien Maillard +9 more
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
Energy Transfer Catalysis Enabled 2,2,2‐Trifluoroethoxy‐Amination of Olefins
ChemistryEurope, EarlyView.A thioxanthone‐catalyzed 2,2,2‐trifluoroethoxyamination of olefins is developed using unprecedented, easily prepared, and bench‐stable oxime ethers via the generation of alkoxy and iminyl radicals. The controlled intermolecular addition of the alkoxy radical to an olefin, over possible competing side processes, is critical.
Floriane Doche +3 more
wiley +1 more source
Fresh Look and Understanding on Carnot Cycle
Energy Procedia, 2014 AbstractCarnot cycle and theorem are major contributions of classical thermodynamics since proposed in 1824, while Carnot failed to prove it because of the influence of Caloric theory of heat. Then in 1850, Clausius confirmed Carnot theorem via reduction to absurdity and put forward the second law of thermodynamics. From then on, the theory that Carnot
Xin Wang +4 more
openaire +2 more sources
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
One-Particle Representation of Heat Conduction Described within the Scope of the Second Law. [PDF]
PLoS ONE, 2016 The Carnot cycle and its deduction of maximum conversion efficiency of heat inputted and outputted isothermally at different temperatures necessitated the construction of isothermal and adiabatic pathways within the cycle that were mechanically ...
Christopher Gunaseelan Jesudason
doaj +1 more source