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Environmental Science and Pollution Research, 2021
This paper presents a complete exergy analysis and exergy destruction of a finned acrylic solar still (SS) at 1, 2, and 3 cm salt water depth (Wd). The coefficients of heat transfer of salt water-glass have been computed for evaporative, convective, and radiant heat transfer.
Mohammed El Hadi, Attia +6 more
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This paper presents a complete exergy analysis and exergy destruction of a finned acrylic solar still (SS) at 1, 2, and 3 cm salt water depth (Wd). The coefficients of heat transfer of salt water-glass have been computed for evaporative, convective, and radiant heat transfer.
Mohammed El Hadi, Attia +6 more
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Regional and global exergy and energy efficiencies
Energy, 1996We present estimates of global energy efficiency by applying second-law (exergy) analysis to regional and global energy balances. We use a uniform analysis of national and regional energy balances and aggregate these balances first for three main economic regions and subsequently into world totals. The procedure involves assessment of energy and exergy
Nakicenovic, N., Gilli, P.V., Kurz, R.
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Exergy-efficient management of energy districts
Proceeding of the 11th World Congress on Intelligent Control and Automation, 2014Sustainable development requires not only the use of sustainable energy resources, but also the efficient use of all energy resources. The latter should be reached by considering the concept of energy as well as exergy - the true magnitude of thermodynamic losses.
DI SOMMA, MARIALAURA +7 more
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Exergy Efficiency in Industry: Where Do We Stand?
Environmental Science & Technology, 2011Efficiency is a term generally used to determine how well a system performs. However, efficiency can have different meanings and, unaccompanied by a formal definition or taken out of context, can lead to serious misconceptions. In many official publications, efficiency is calculated as the ratio of useful output to energy input.
Robert U, Ayres +2 more
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Through exergy approach to more efficient processes
2000This paper compares three different types of a turbine-converter-expander combination with respect to the exergetic efficiency. Converter stands for a combustion chamber, a Solid Oxide Fuel Cell and a reactor in which a chemical process is carried out. The exergy losses for the first examples are 22%. The exergy losses for the other two examples can be
PLOUMEN, P., JANSSEN, F.j.j.g.
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Calculation of exergy losses, exergy efficiency and cooling coefficient of refrigerant R22
International Journal of Science and Research ArchiveThis study presents a detailed analysis of the exergy losses, exergy efficiency, and cooling coefficient of performance (COP) for the refrigerant R22 in refrigeration systems. Exergy analysis, which considers both the quantity and quality of energy, is used to identify and quantify the irreversibilities within the system. The objective of this analysis
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Study of exergy efficient distillation technologies
2021Crude oil distillation is the core separation process in any refinery; However, distillation process is one of the most energy- intensive processes in the chemical process industry and with more than 40000 distillation columns operating all over the world, they consume over 40% of the energy used in the chemical processes.
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Exergy efficiency of solar components and systems
2017The solar energy is an inexhaustible source of energy and offers many environmental advantages compared to conventional energy sources. This paper deals with exergy efficiency of solar systems. The exergy is the measure of the maximum useful work which can be achieved by a system having to interact with an environment which is at a constant pressure ...
Jaramaz, Lana, Banjac, Miloš
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