Results 81 to 90 of about 27,766 (222)

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

open access: yesEnergy 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   +2 more
wiley   +1 more source

Coordination of exergy analysis and the MIND method - applied to a pulp and board mill

open access: yes, 2004
The MIND (Method for analysis of INDustrial energy systems) method has been developed for cost optimisation of industrial energy systems, mainly with regard to quantities of energy.
Gong, Mei,, Karlsson, Magnus,
core   +1 more source

Exergy analysis and optimisation of a hybrid solar-geothermal power plant

open access: yes, 2023
The present study aims at the energy, exergetic, exergoeconomic, exergoenvironmental analysis of a hybrid solar-geothermal power plant. In addition, the emergy-based approach based on exergoeconomic and exergoenvironmental analysis has been performed ...
Ana M. Blanco Marigorta   +5 more
core   +1 more source

Exergy Analysis of a Bio-System: Soil–Plant Interaction

open access: yesEntropy, 2020
This paper explains a thorough exergy analysis of the most important reactions in soil–plant interactions. Soil, which is a prime mover of gases, metals, structural crystals, and electrolytes, constantly resembles an electric field of charge and ...
Masoomeh Bararzadeh Ledari   +3 more
doaj   +1 more source

Techno‐Economic Analysis and Multi‐Objective Optimization of a Novel Combined Cooling and Power System Driven by Geothermal Source and Waste Heat From Data Center

open access: yesEnergy Science &Engineering, Volume 14, Issue 9, Page 4300-4315, September 2026.
A novel combined cooling and power generation system is proposed by integrating organic Rankine cycle (ORC) with an absorption heat transformer, which is driven by combining geothermal energy and data center's waste heat. The system using R601a yielded the best overall performance, achieving an exergy efficiency of 40.34% and an annual cost of 130.29 k$
Zerui Chen   +4 more
wiley   +1 more source

Influence of Structural and Environmental Parameters on Solar Air Collector Performance

open access: yesEnergy Science &Engineering, Volume 14, Issue 9, Page 4409-4421, September 2026.
Increasing air gap depth and mass flow rate significantly enhances the thermal performance of solar air collectors, with optimal performance achieved at an 8.5 cm air gap and 0.01318 kg/s mass flow rate. Air gap depth is identified as the dominant factor influencing system efficiency.
Quankun Zhu   +2 more
wiley   +1 more source

Exergy Analysis of SI Engines

open access: yes, 2008
In this study, exergy (availability) analysis of a Spark Ignition (SI) engine has been performed theoretically during compression, combustion and expansion processes of the engine cycle.
Bilgin, Atilla, Sezer, İsmet
core   +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

open access: yesEnergy 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   +5 more
wiley   +1 more source

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

open access: yessteel 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   +2 more
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

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