Results 41 to 50 of about 422,118 (270)

Conventional and advanced exergy analyses of an organic Rankine cycle by using the thermodynamic cycle approach

open access: yesEnergy Science & Engineering, 2021
In this study, a basic organic Rankine cycle (ORC) is introduced in an air separation process for waste heat recovery. Conventional and advanced exergy analyses are adopted to investigate the thermodynamic properties of components in the ORC.
Yi Wang   +6 more
doaj   +1 more source

An exergy approach to efficiency evaluation of desalination [PDF]

open access: yes, 2017
This paper presents an evaluation process efficiency based on the consumption of primary energy for all types of practical desalination methods available hitherto.
Hamed, Osman A.   +3 more
core   +2 more sources

Multiobjective genetic algorithm strategies for electricity production from generation IV nuclear technology [PDF]

open access: yes, 2010
Development of a technico-economic optimization strategy of cogeneration systems of electricity/hydrogen, consists in finding an optimal efficiency of the generating cycle and heat delivery system, maximizing the energy production and minimizing the ...
Azzaro-Pantel, Catherine   +5 more
core   +2 more sources

Advanced exergy analysis on varying climate conditions for a 3 MW S-CO2 Brayton cycle system

open access: yesCase Studies in Thermal Engineering
Aiming at the problem that conventional exergy analysis cannot provide comprehensive insights into exergy destruction, advanced exergy analysis was conducted on the supercritical CO2 cycle. A more detailed breakdown of exergy destruction was revealed. In
Zhen Wang, Decai Zhao, Bo Wang, Xiang Xu
doaj   +1 more source

Exergy analysis of a PWR nuclear steam supply system – Part I, general theoretical model [PDF]

open access: yes, 2018
The paper provides an alternative, novel methodology to perform the exergetic analysis of a Pressurized Nuclear Reactor (PWR) based on the strictest definition of fission temperature to get to a careful evaluation of Exergy Destruction and exergetic ...
Ferroni, Luisa, NATALE, ANTONIO
core   +1 more source

Exergy Destruction and Entropy Generation in Desalination Systems [PDF]

open access: yesProceedings of 3rd International Electronic and Flipped Conference on Entropy and Its Applications, 2016
The impetus for new tools for a comprehensive and accurate analysis of energy utilization and industrial systems comes from the need for sustainable development that could be impeded by exhausting energy sources and deteriorating environment. Exergy evaluation provides insight to achieve highest technological efficiency at the lowest cost while meeting
openaire   +1 more source

Thermodynamic efficiency and entropy production in the climate system [PDF]

open access: yes, 2009
We present an outlook on the climate system thermodynamics. First, we construct an equivalent Carnot engine with efficiency and frame the Lorenz energy cycle in a macroscale thermodynamic context.
Lucarini, Valerio
core   +2 more sources

Investigation on efficiency improvement of a Kalina cycle by sliding condensation pressure method [PDF]

open access: yes, 2017
Conventional Kalina cycle-based geothermal power plants are designed with a fixed working point determined by the local maximum ambient temperature during the year.
Wang, Enhua, Yu, Zhibin, Zhang, Fujun
core   +1 more source

Thermodynamic analysis of a novel fossil-fuel–free energy storage system with a trans-critical carbon dioxide cycle and heat pump [PDF]

open access: yes, 2020
This paper presents and analyzes a novel fossil-fuel–free trans-critical energy storage system that uses CO2 as the working fluid in a closed loop shuttled between two saline aquifers or caverns at different depths: one a low-pressure reservoir and the ...
Hao, Y   +4 more
core   +1 more source

Energetic and exergetic analysis of combined cycle power plant: Part-1 operation and performance [PDF]

open access: yes, 2015
Energetic and exergetic analyses are conducted using operating data for Sabiya, a combined cycle power plant (CCPP) with an advanced triple pressure reheat heat recovery steam generator (HRSG).
Al-Mutawa, Nawaf   +2 more
core   +2 more sources

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