Results 91 to 100 of about 2,896,907 (259)

Carnot Model and Theoretical Efficiency of Large-Temperature-Difference of Absorption Cycle

open access: yesZhileng xuebao, 2005
The Carnot analysis method was proposed for the simplification of the thermodynamic analysis of the absorption cycle,by the comparison of the absorption cycle and the compression cycle.The system with two evaporators and two absorbers that is suitable ...
隋军
doaj  

Ideal mass transfer cycle and thermal performance optimization for liquid desiccant air conditioning system

open access: yesResults in Physics
Mass transfer processes, cycles and associated conversion devices find wide application in air-conditioning. However, several optimization problems concerning mass-related devices and systems persist due to the absence of corresponding optimization ...
Yin Zhang   +3 more
doaj   +1 more source

New Supercritical Parameter Coal-Fired Power Generation System Structure Design Technology

open access: yes发电技术, 2019
According to the basic principle of the irreversible thermodynamic cycle value, the irreversible process of the thermodynamic cycle system was analyzed.
Jinfu YANG   +4 more
doaj   +1 more source

Quantum mechanical bound for efficiency of quantum Otto heat engine

open access: yes, 2019
The second law of thermodynamics constrains that the efficiency of heat engines, classical or quantum, cannot be greater than the universal Carnot efficiency.
Chun, Hyun-Myung   +3 more
core   +1 more source

Reversibility analysis of an experimental heat and mass recovery adsorption cycle with PCM thermal energy storage

open access: yesNext Energy
This study analyzed a reversibility scenario and state equilibrium of an experimental dual-stage dual-bed adsorption chiller silica gel-water pair with phase change material (PCM) thermal energy storage.
Tagne Takote Brice Clausel   +6 more
doaj   +1 more source

Comment on: "Sadi Carnot on Carnot's theorem"

open access: yes, 2003
Carnot established in 1824 that the efficiency $\eta_{C}$ of reversible engines operating between a hot bath at absolute temperature $T_{hot}$ and a cold bath at temperature $T_{cold}$ is equal to $1-T_{cold}/T_{hot}$.
Arnaud, Jacques   +2 more
core   +1 more source

The performance analysis of reversed Carnot cycle and reversed p-V cycle

open access: yesScientia Sinica Technologica, 2018
A reversed thermodynamic cycle is a cycle which consumes mechnical work and moves heat energy from a source with lower temperature to a source with higher temperature, and the coefficient of performance (COP) is generally applied to describe its ...
Zengyuan Guo, Tian Zhao, Ti-Wei Xue
semanticscholar   +1 more source

Advanced Characterization of Lithium‐Ion Battery Electrolytes Using Ultra‐high Resolution Mass Spectrometry and Nuclear Magnetic Resonance Spectroscopy

open access: yesBatteries &Supercaps, Volume 8, Issue 9, September 2025.
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

Implications of Coupling in Quantum Thermodynamic Machines

open access: yes, 2017
We study coupled quantum systems as the working media of thermodynamic machines. Under a suitable phase-space transformation, the coupled systems can be expressed as a composition of independent subsystems.
Banik, Manik   +2 more
core   +2 more sources

Approaching an Efficient and Feasible Carnot Engine by Carnot Cycle Analysis

open access: yesJournal of Energy Research and Reviews, 2021
Based on the knowledge exhibited in the literature on the Carnot cycle, a preliminary study is carried out on Carnot machines capable of implementing the Carnot cycle at high thermal efficiency. Therefore, two engine structures are proposed: (i) reciprocating single and double-acting cylinder-based thermal engines implemented under a closed processes ...
openaire   +3 more sources

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