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An Entropy Generation Rate Model for Tropospheric Behavior That Includes Cloud Evolution [PDF]

open access: yesEntropy, 2023
A postulate that relates global warming to higher entropy generation rate demand in the tropospheric is offered and tested. This article introduces a low-complexity model to calculate the entropy generation rate required in the troposphere.
Jainagesh A. Sekhar
doaj   +2 more sources

Performance Comparison of Different Flat Plate Solar Collectors by Means of the Entropy Generation Rate Using Computational Fluid Dynamics [PDF]

open access: yesEntropy, 2023
In this work, a numerical analysis of three different flat plate solar collectors was conducted using their entropy generation rates. Specifically, the Computational Fluid Dynamics (CFD) technique was used to compare the detailed performance of ...
J. J. Ramírez-Minguela   +6 more
doaj   +2 more sources

The Differential Entropy Generation Rate as a Unified Measure for Both the Stability and Efficiency of an Axial Compressor

open access: yesMachines, 2023
Stability and efficiency are the two most important performance indicators of highly loaded aviation axial compressors; however, they often cannot be achieved simultaneously.
Jingyuan Ma, Feng Lin
doaj   +1 more source

Heat Transfer and Entropy Generation Evaluation on Molten Salt Tank Foundation with Internal Water Cooling [PDF]

open access: yesE3S Web of Conferences, 2020
Molten salt tanks are used to store and release thermal energy. Large heat leakage through the molten salt tank foundation to the ground and high temperature of the foundation are detrimental to long-term operation safety.
Sun Shien   +4 more
doaj   +1 more source

Analysis of NO Formation and Entropy Generation in a Reactive Flow

open access: yesAerospace, 2022
A comprehensive investigation of turbulent combustion is accomplished to study the relationship between nitrogen oxide (NO) formation and entropy generation distribution in a non-premixed propane combustion. The radiation heat transfer and combustion are
Milad Mohammadi   +1 more
doaj   +1 more source

Numerical studies for effect of geometrical parameters on water jet pump performance via entropy generation analysis

open access: yesJournal of Mechanical Engineering and Sciences, 2023
This paper presented an implementation of entropy generation analysis in the main flow field of a water jet pump via the CFD method. This study aimed to identify the inefficient location of energy conversion and to analyse entropy generation sources in ...
Muhammad Penta Helios   +1 more
doaj   +1 more source

Entropy generation rate minimization for sulfur trioxide decomposition membrane reactor

open access: yesEnergy Reports, 2022
Sulfuric acid decomposition is the critical reaction in sulfur-iodide thermochemical cycle to produce oxygen. Sulfuric acid can decompose spontaneously into sulfur trioxide (SO3) and water, and SO3 continues to decompose into oxygen and sulfur dioxide ...
Rui Kong   +4 more
doaj   +1 more source

Numerical Study on Entropy Generation in Thermal Convection with Differentially Discrete Heat Boundary Conditions

open access: yesEntropy, 2018
Entropy generation in thermal convection with differentially discrete heat boundary conditions at various Rayleigh numbers (Ra) are numerically investigated using the lattice Boltzmann method.
Zhengdao Wang, Yikun Wei, Yuehong Qian
doaj   +1 more source

Matrixed modeling method and entropy generation minimization analysis of heat supply system based on standard thermal resistance

open access: yesEnergy Science & Engineering, 2023
Complex implicit expressions and many intermediate parameters are not conducive to the application of entropy generation optimization to the performance of thermal and energy systems from component and system perspectives.
Chenzhi Ju   +5 more
doaj   +1 more source

Entropy Generation Rates in Two-Dimensional Rayleigh–Taylor Turbulence Mixing

open access: yesEntropy, 2018
Entropy generation rates in two-dimensional Rayleigh–Taylor (RT) turbulence mixing are investigated by numerical calculation. We mainly focus on the behavior of thermal entropy generation and viscous entropy generation of global quantities with ...
Xinyu Yang   +4 more
doaj   +1 more source

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