Results 71 to 80 of about 2,130,088 (198)

Exergy analysis and sustainability assessment of renewable energy systems by means of the Total Cumulative Exergy Loss method [PDF]

, 2022
È stata presa in esame la valutazione della sostenibilità della produzione di energia elettrica da fonti rinnovabili (parco eolico offshore, parco fotovoltaico, centrale a biomassa.
Giustozzi, Natalia
core  

Thermodynamic Performance Investigation of Commercial R744 Booster Refrigeration Plants Based on Advanced Exergy Analysis

Energies, 2019
After the recent renewed interest in CO2 as the refrigerant (R744) for the food retail industry, many researchers have focused on the performance enhancement of the basic transcritical R744 supermarket refrigeration unit in warm climates.
Paride Gullo, Armin Hafner, Krzysztof Banasiak   +2 more
doaj   +1 more source

Solar Fuels Via Methane Valorization: Thermochemical Pathways, Unified Metrics, and Techno‐Economic Perspectives

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez, Amjad Othman, Majid Linjawi, Amro Al‐Qutub   +3 more
wiley   +1 more source

Thermodynamic Analysis and Optimization of Shipborne Cascade ORC/TCO₂ Power System Utilizing LNG Cold Energy

Energies
Liquefied natural gas (LNG)-powered ships possess available utilizable energy resources, including LNG vaporization cold energy and main engine flue gas waste heat.
Shouguang Yao, Yu He, Yindong Song, Yue Wei, Xintao Dong   +4 more
doaj   +1 more source

Selecting Between Hydrogen and Methanol for Fuel Cell‐Organic Rankine Cycle Hybrid Power Systems: A Comparative 4E Analysis

Energy Science &Engineering, Volume 14, Issue 9, Page 4248-4260, September 2026.
A 4E comparison of PEMFC‐ORC and DMFC‐ORC systems shows that PEMFC‐ORC achieves 21% higher energy efficiency, while DMFC‐ORC obtains 31% higher exergy efficiency and 57% lower levelized cost of electricity. However, DMFC‐ORC emits nearly twice the annual carbon dioxide equivalent of PEMFC‐ORC.
Zahra Piryaei, Maryam Karami, Iman Khazaee   +2 more
wiley   +1 more source

Energy, exergy, and advanced exergy analysis of a novel solar-based S-CO2 cycle and comparison of systems with different layouts

Case Studies in Thermal Engineering
Solar energy is an endless source of renewable energy, so solar-powered S-CO2 cycle power generation systems have received much attention from scholars.
Qiujie Cheng, Yunlong Zhou, Mei Yang, Xinrui Han, Jiani Liu   +4 more
doaj   +1 more source

Techno‐Economic and Environmental Performance of Solar‐Driven Green Hydrogen Production: Influence of Photovoltaic Technology and Electrolyzer Selection Under Tropical Climatic Conditions

Energy Science &Engineering, Volume 14, Issue 9, Page 4171-4196, September 2026.
ABSTRACT Green hydrogen produced through renewable energy‐powered water electrolysis is a promising pathway for decarbonizing future energy systems. However, the performance, economic feasibility, and environmental implications of integrated photovoltaic (PV) hydrogen systems under tropical climatic conditions remain insufficiently explored. This study
Abdelhak Lekbir, Abdullahi Mohamed Samatar, Putri Nor Liyana Mohamad Radzi, Saad Mekhilef, Kok Soon Tey, Mehdi Seyedmahmoudian   +5 more
wiley   +1 more source

Expanding the exergy concept to the urban water cycle [PDF]

, 2009
The world is urbanizing fast and this increases the pressure on available resources. In a world of cities, it is therefore crucial to take a new look at the way urban systems function: where do the resources come from and where do the wastes end up?
Leduc, W.R.W.A., Mels, A.R., Agudelo Vera, C.M., Rovers, R.   +3 more
core  

Determination of avoidable unaviodable exergy destructions of furnace- air preheater coupled system

Journal of Thermal Engineering, 2016
This study was performed with the intention of giving a deeper insight about the thermodynamic effectiveness of a thermal system. In this study, a fired heater (or furnace) existing in a petrochemical plant located in Aliağa, İzmir, Turkey were ...
Selay Sert, Firuz Balkan
doaj  

Investigating the Iron‐Steam Process for Coupling With SOEC and SOFC: A Step Toward Integrated Hydrogen and Electricity Storage

steel research international, Volume 97, Issue 9, Page 4976-4995, September 2026.
Fixed‐bed reactor experiments (10 L) validate the iron–steam redox process, bridging material‐scale research and industrial power‐to‐power applications. Coupled with SOEC/SOFC systems, this framework defines critical interfaces for heat and gas management. Results confirm reproducible hydrogen storage and release, demonstrating technical feasibility at
Julien Göthel, Radek Vostal, Olena Volkova   +2 more
wiley   +1 more source