Results 41 to 50 of about 328,337 (207)

Simulation and Exergy Analysis of a Refrigeration System Using an Open-Source Web-Based Interactive Tool—Comparison of the Conventional Approach and a Novel One for Avoidable Exergy Destruction Estimation

Applied Sciences, 2021
Avoidable endogenous/exogenous parts of the exergy destruction in the components of an energy conversion system can be computed by applying advanced exergy analysis.
Volodymyr Voloshchuk, Paride Gullo, Eugene Nikiforovich, Nadia Buyak   +3 more
doaj   +1 more source

Energy and exergy analysis of Derna steam power plant and the impact of varying the different parameters on exergy destruction

مجلة أكاديمية الجبل للعلوم الأساسية والتطبيقية, 2022
In this study, an energy and exergy analysis of the Derna steam power plant in Libya is presented. This study aims to identify the components with high energy and exergy losses which are leading to a decrease in the performance of the power plant. The largest place losses can be figured out hence to subsequently ensure where the greatest margin for ...
Adel Bojeldain, Yasser Aldali, Moftah Alshaikh   +2 more
openaire   +1 more source

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

, 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, Manesh, M. H.Khoshgoftar, M. Moghaddam, Moghaddam, M., M.H. Khoshgoftar Manesh, Blanco Marigorta, Ana María   +5 more
core   +1 more source

Energy, Exergy, and Emissions Analyses of Internal Combustion Engines and Battery Electric Vehicles for the Brazilian Energy Mix

, 2023
Exergy is a thermodynamic concept that ponders the quality of energy. It evaluates the irreversibilities of a machine, demonstrating its capacity to perform work associated with energy conversion.
Henrique Naim Finianos Feliciano, Fernando Fusco Rovai, Carlos Eduardo Keutenedjian Mady   +2 more
core   +1 more source

Exergy destruction calculation and analysis for a Coal drying system

IOP Conference Series: Earth and Environmental Science, 2020
Abstract A coal drying system was modelled and the calculation methodology was developed to calculate the system. Then the system performance was obtained and the exergy destruction and loss in the system is 70.5 kW. The reasons of exergy destruction were tried to be explained from the perspective of energy grade.
Xuye Jing, Zhansheng Shi, Zhian Ma, Li Peng, Fang Dong, Bo Xu   +5 more
openaire   +1 more source

Sustainability Assessment: The Role of Entropy‐Based Indicators for Reconnecting Human' Subjectivity and Civilization With Natural Tendency of Ecosystems

Sustainable Development, EarlyView.
ABSTRACT Sustainability represents a complex issue in which scientific knowledge inevitably coexists with the subjective perception of humans in its turn influenced by civilization, cultural but also unconscious aspects. These results emerge with evidence from a critical analysis of the main definitions of sustainability delivered by credited entities (
Francesco Di Maria, Hamid Safarzadeh
wiley   +1 more source

Advanced Exergy and Exergoeconomic Analysis of Cascade High-Temperature Heat Pump System for Recovery of Low-Temperature Waste Heat

Energies
Cascade high-temperature heat pumps (CHTHPs) are often applied to recover low-temperature industrial waste heat owing to their large temperature lift.
Xiaowei Hu, Chenyang Shi, Yong Liu, Xingyu Fu, Tianyao Ma, Mingsen Jin   +5 more
doaj   +1 more source

Exergy Analysis of Fluidized Desiccant Cooling System

Entropy, 2019
One of the main challenges in the design and implementation of fluidized desiccant cooling (FDC) systems is increasing their low COP (coefficient of performance). Exergy analysis is one of the tools especially suitable for improvement and optimization of
Zbigniew Rogala, Piotr Kolasiński
doaj   +1 more source

Secure Enough? Sufficiency and Security in the New Geological and Geopolitical Reality

Sustainable Development, EarlyView.
ABSTRACT This article advances sufficiency theorizing by examining its relationship with security in the contemporary geopolitical context. It engages three contextually situated discourses: sustainable development, ecological civilization, and degrowth, to explore how concerns over ecological limits intersect with emerging geopolitical and security ...
Pasi Heikkurinen, Kiira Parikka, Herman Stål, Teemu Vaarakallio   +3 more
wiley   +1 more source

Exergy‐Based Performance Analysis and Optimization of Autonomous Fuel Cell‐Based Energy Systems With Solid Oxide and Proton Exchange Membrane Fuel Cells Fed by Biogas of Variable Composition

Fuel Cells, Volume 26, Issue 5, October 2026.
ABSTRACT This study presents a unified thermodynamic and exergy‐based assessment of autonomous fuel cell energy systems operating on biogas with varying compositions. Two alternative configurations—a solid oxide fuel cell (SOFC)‐based system and a proton exchange membrane fuel cell (PEMFC)‐based system—were evaluated using a common balance‐of‐plant ...
Evangelos Tsiaras, Dennis Mytakis, Frank A. Coutelieris   +2 more
wiley   +1 more source