Results 71 to 80 of about 3,894 (216)

Power Losses in Energy Generation: Mechanisms, Mitigation Strategies, and Pathways to a Sustainable Future

open access: yesEnergy Technology, Volume 14, Issue 4, April 2026.
This article provides a comprehensive review of loss mechanisms in the generation stage of energy systems, covering fossil, nuclear, and renewable technologies. It examines their environmental and operational implications and shows how overlooking generation losses distorts efficiency assessments.
Pooya Parvizi   +4 more
wiley   +1 more source

Techno‐Economic Analysis of Hydrocarbon‐CO2 Binary Mixtures in Heat Pump‐Based Thermal Energy Storages

open access: yesEnergy Technology, Volume 14, Issue 4, April 2026.
Heat‐pump charging of Carnot batteries with zeotropic large temperature glide CO2–alkane mixtures enables charging from ambient to ≈398.15 K with improved heat‐exchanger temperature matching at moderate pressure ratios. The highest COP occurs near xCO2 ≈ 0.15, whereas cost and throttling losses rise monotonically with CO2 content; butane isomers ...
Majid Zarif Sabbaghnia, Burak Atakan
wiley   +1 more source

Designing a Sustainable Organic Rankine Cycle for Remote Geothermal Heat Sources in Pakistan

open access: yesMaterials Proceedings
This paper discusses a thorough analysis, as well as the design, of an environmentally friendly, single-stage Organic Rankine Cycle (ORC) system, particularly optimized for untapped geothermal applications in Pakistan that are secluded and off-grid, to ...
Muhammad Shoaib Ijaz   +4 more
doaj   +1 more source

Enhanced exergy analysis of a waste heat powered ejector refrigeration system for different working fluids

open access: yes, 2017
8th International Exergy, Energy and Environment Symposium (IEEES) -- MAY 01-04, 2016 -- Antalya, TURKEYConventional and enhanced exergy analyses of a waste heat powered ejector refrigeration system using exhausted gas from rotary kiln were carried out ...
Mehmet Emin Akay   +7 more
core   +1 more source

Comprehensive Review on Concentrated Solar Photovoltaics: Manufacturing, Cooling Technologies, and Advanced Applications

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 3, March 2026.
This review examines the evolution and current state of concentrated photovoltaic systems, focusing on materials, manufacturing pathways, and thermal management challenges. Advanced cooling techniques and emerging applications are assessed alongside recent digital integration strategies. Through linking performance gains with practical limitations, the
Abdul Ghani Olabi   +7 more
wiley   +1 more source

Exergy Analysis of Steam Pressure Reduction Valve in Marine Propulsion Plant on Conventional LNG Carrier

open access: yesNaše More (Dubrovnik), 2018
Paper has presented an exergy analysis of steam pressure reduction valve, unavoidable element in the steam propulsion plant on LNG carrier. The steam pressure reduction valve was analyzed in a wide range of steam system loads.
Vedran Mrzljak   +2 more
doaj   +1 more source

Numerical analysis and field study of time dependent exergy-energy of a gas-steam combined cycle [PDF]

open access: yesJournal of the Serbian Chemical Society, 2012
In this study, time dependent exergy analysis of the Fars Combined Power Plant Cycle has been investigated. Exergy analysis has been used for investigating each part of actual combined cycle by considering irreversibility from Apr 2006 to Oct 2010 ...
Barari Bamdad   +3 more
doaj   +1 more source

Exergy and Economic Analysis of Hybrid Mechanical Vapor Compression and Membrane Distillation

open access: yesAsia-Pacific Journal of Chemical Engineering, Volume 21, Issue 2, March/April 2026.
ABSTRACT Hybridization of two or more desalination processes has been identified as an attractive option for improved energy efficiency and recovery rate. To appropriately assess the performance enhancement of hybrid desalination systems, an integrated approach for energy, exergy, economic, and environmental investigations should be adopted. This study
Emad Ali, Jamel Orfi
wiley   +1 more source

In-Depth Exergy Analysis of the Thermochemical Conversion of Flax Straw via Pyrolysis

open access: yesEng
Pyrolysis is a promising thermochemical conversion process for transforming biomass waste into valuable products like bio-oil, syngas, and biochar. Understanding the thermodynamic efficiency of this process is important for optimizing its design and ...
Aknur Temireyeva   +2 more
doaj   +1 more source

Avoidable thermodynamic inefficiencies evaluation of a sewage water source heat pump system

open access: yes, 2023
The performance of a sewage water source heat pump system is assessed through conventional/enhanced exergy-based methods in this present study. The experimental data used in the analyses are based the cooling mode.
Celik, Aysegul Gungor || Hepbasli, Arif
core   +1 more source

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