Results 1 to 10 of about 25,153,568 (292)

Entropy Generation Analysis of Laminar Flows of Water-Based Nanofluids in Horizontal Minitubes under Constant Heat Flux Conditions [PDF]

open access: yesEntropy, 2018
During the last decade, second law analysis via entropy generation has become important in terms of entropy generation minimization (EGM), thermal engineering system design, irreversibility, and energy saving.
Mehrdad Karimzadehkhouei   +5 more
doaj   +4 more sources

Entropy Generation Analysis of a Thermal Cracking Reactor [PDF]

open access: yesACS Omega, 2021
The present paper analyzes the entropy generation of a tabular thermal cracking reactor with propane feed, as well as the molecular mechanism of the reaction. The reaction model is obtained and the flow, reaction, momentum, and energy are determined with knowledge of the outer wall temperature.
Peyman Roudgar Saffari   +3 more
doaj   +5 more sources

Entropy Generation Analysis and Performance Comparison of a Solid Oxide Fuel Cell with an Embedded Porous Pipe Inside of a Mono-Block-Layer-Build Geometry and a Planar Geometry with Trapezoidal Baffles [PDF]

open access: yesEntropy
An analysis of entropy generation and a performance comparison are carried out for a solid oxide fuel cell with an embedded porous pipe in the air supply channel of a mono-block-layer-build geometry (MOLB-PPA SOFC) and a planar geometry with trapezoidal ...
J. J. Ramírez-Minguela   +7 more
doaj   +2 more sources

A review of entropy generation in microchannels

open access: yesAdvances in Mechanical Engineering, 2015
In this study, a critical review of thermodynamic optimum of microchannels based on entropy generation analysis is presented. Using entropy generation analysis as evaluation parameter of microchannels has been reported by many studies in the literature ...
Mohamed M Awad
doaj   +2 more sources

Entropy Generation Analysis and Thermodynamic Optimization of Jet Impingement Cooling Using Large Eddy Simulation [PDF]

open access: yesEntropy, 2019
In this work, entropy generation analysis is applied to characterize and optimize a turbulent impinging jet on a heated solid surface. In particular, the influence of plate inclinations and Reynolds numbers on the turbulent heat and fluid flow properties
Florian Ries   +4 more
doaj   +2 more sources

Numerical Study on Entropy Generation of the Multi-Stage Centrifugal Pump

open access: yesEntropy, 2022
The energy loss of the multi-stage centrifugal pump was investigated by numerical analysis using the entropy generation method with the RNG k-ε turbulence model.
Baoxin Fan   +3 more
doaj   +1 more source

Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration

open access: yesEntropy, 2022
In studies on the combustion process, thermodynamic analysis can be used to evaluate the irreversibility of the combustion process and improve energy utilization efficiency.
Huibo Yan   +6 more
doaj   +1 more source

Thermo-Economic Performance of an Organic Rankine Cycle System Recovering Waste Heat Onboard an Offshore Service Vessel

open access: yesJournal of Marine Science and Engineering, 2020
Recent regulatory developments in the global maritime industry have signalled an increased emphasis on the improvement of energy efficiency onboard ships.
ChunWee Ng, Ivan C. K. Tam, Dawei Wu
doaj   +1 more source

Performance analysis of micro-fin tubes compared to smooth tubes as a heat transfer enhancement technique for flow condensation

open access: yesEnergy Nexus, 2022
Heat transfer enhancement techniques are accompanied by pressure drop amplification, detrimentally affecting their performance; entropy generation analysis is an effective approach to assess heat transfer enhancement along with resulting pressure drop ...
Shahriyar Ghazanfari Holagh   +4 more
doaj   +1 more source

Analysis of Energy Utilization and Losses for Jet-Propelled Vehicles

open access: yesAerospace, 2021
The global control volume-based energy utilization balance for an aerospace vehicle is extended to allow for the analysis of jet-propelled vehicles.
Mohammad Abbas, David W. Riggins
doaj   +1 more source

Home - About - Disclaimer - Privacy