Results 1 to 10 of about 3,985 (187)

Exergy Efficiency of Closed and Unsteady-Flow Systems [PDF]

open access: yesEntropy
Exergy efficiency is viewed as the degree of approaching reversible operation, with a value of 100 percent for a reversible process characterized by zero entropy generation or equivalently zero exergy destruction since Xdestroyed = T0Sgen.
Yunus A. Çengel, Mehmet Kanoğlu
doaj   +5 more sources

On the exergy efficiency of CO2 capture: The relation between sub-process and overall efficiencies

open access: yesCarbon Capture Science & Technology, 2023
A generic exergy targeting tool for gas separation processes is developed, which is applicable to any defined boundary conditions for incoming feed gas as well as delivered separation products.
David Berstad, Truls Gundersen
doaj   +3 more sources

A Systematic Approach to Exergy Efficiency of Steady-Flow Systems [PDF]

open access: yesEntropy
Exergy efficiency is a measure of thermodynamic perfection. A device that operates reversibly has an exergy efficiency of 100 percent and is said to be thermodynamically perfect.
Yunus A. Çengel, Mehmet Kanoğlu
doaj   +2 more sources

Thermodynamic analysis of combined cycle plant operation as part of an energy-saving system based on an absorption bromide-lithium refrigerating machine [PDF]

open access: yesОмский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2020
The main directions of research of the current energy-generating system, taking into account its technical limitations, are optimization and forecasting based on the analysis of its operating modes.
L. V. Galimova, D. Z. Bairamov
doaj   +1 more source

Exergy Analysis of the Steam Generation System to Explore the Potential for Optimizing Energy Consumption [PDF]

open access: yesJournal of Agricultural Machinery, 2022
Introduction Steam generation system is a crucial and essential part of food industries which generates and distributes steam for consumption in domestic production units. Energy analysis based on the first law of thermodynamics was employed as the basic
I Golpour   +2 more
doaj   +1 more source

Exergy Efficiency and COP Improvement of a CO2 Transcritical Heat Pump System by Replacing an Expansion Valve with a Tesla Turbine

open access: yesEnergies, 2022
The heat pump system has been widely used in residential and commercial applications due to its attractive advantages of high energy efficiency, reliability, and environmental impact.
Abbas Aghagoli   +2 more
doaj   +1 more source

Experimental Exergetic And Energetic Analysis of Different (PV) Array Configurations [PDF]

open access: yesEngineering and Technology Journal, 2022
It is well known that photovoltaic (PV) can be connected in parallel, series, and parallel series. In this study, four PV panels are connected in four different ways, i.e., 4panels parallel (4p), 3panels parallel*1panel series (3p*1s), 2panels parallel ...
Dalya Omer   +2 more
doaj   +1 more source

Exergy Analysis of Thermal Power Plant for Three Different Loads

open access: yesTehnički Glasnik, 2023
This paper presents the energy and exergy analysis of thermal power plant Tuzla in Tuzla, Bosnia and Herzegovina. The main aim of this paper is to analyze the components of a 200 MW steam power plant unit in order to identify and quantify the sites with ...
Nurdin Ćehajić
doaj   +1 more source

Exergy Efficiency for Radiation Heat Transfer

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract One of the evaluation criteria for the performance of thermal processes is exergy analysis. Along with energy analysis, exergy calculations provide a clear and highly effective understanding of the performance of a system. Although exergy analysis has been extensively applied to many industrial processes, there are limited works
Mohammed, Hayder Noori   +1 more
openaire   +2 more sources

Exergy efficiency of plant photosynthesis [PDF]

open access: yesChemical Engineering Science, 2015
Abstract With recent concerns about sustainability and environmental protection, growing attention has been focused on biological sources for both chemicals and fuels; however, to analyze such bioprocesses for commercial viability, and to investigate possible efficiency improvements, the theoretical efficiencies must be known as an upper-bound on ...
Cory S. Silva   +2 more
openaire   +1 more source

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