Results 41 to 50 of about 4,653,935 (318)

Exergy of heat flows of the air-to-air plate heat exchanger

open access: yesResearch in Agricultural Engineering, 2004
Based on extensive measurements of the temperature, humidity and flow rate of the heated and cooled air in the plate heat exchanger this article analyses the influence of air inlet temperatures on both the exergy efficiency of the heat exchanger and the ...
R. Adamovský, D. Adamovský, D. Herák
doaj   +1 more source

Numerical Investigation on the Impact of Exergy Analysis and Structural Improvement in Power Plant Boiler through Co-Simulation

open access: yesEnergies, 2022
In current power station boilers, fuel burns at a low temperature, which results in low exergy efficiency. This research combined the second law of t with the boiler structure to maximize the efficiency of a 350 MW power plant boiler. A three-dimensional
Hang Yin, Yingai Jin, Liang Li, Wenbo Lv
doaj   +1 more source

Exergy analysis of a PWR nuclear steam supply system - II part: a case study [PDF]

open access: yes, 2018
The paper shows the results of the exergetic analysis of the Nuclear Steam Supply System (NSSS) of the MARS Pressurized Light Water Reactor using the theoretical methodology described in the authors’ previous works [1] and [2].
Ferroni, Luisa, Natale, Antonio
core   +1 more source

Analysis of Operation Parameters of Fish Refrigeration by Exergy Analysis. Case Study

open access: yesEnvironmental and Climate Technologies, 2019
Unlike energy efficiency, in terms of exergy efficiency it is possible to compare the existing operation of an energy conversion system with the ideal operation.
Terehovics Edvins   +2 more
doaj   +1 more source

Sustainability Enhancement of a Biomass Boiler through Exergy Analysis

open access: yesProceedings, 2017
Investigations on exergy resources are important from the point of energy sustainability. In the presented study, an energy and exergy analysis of the operating biomass and natural gas boilers at the University of Idaho (UI) district energy plant is ...
Marc Compton, Behnaz Rezaie
doaj   +1 more source

EXERGY ANALYSIS OF DOUBLE-CIRCUIT FLAT SOLAR COLLECTOR WITH THERMOSYPHON CIRCULATION

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2019
In the present work, an exergy analysis was done of two-circuit flat solar collector with thermosiphon circulation. The article presents a mathematical model of energy and exergic analysis of flat solar collectors, as well as calculations of solar ...
Waldemar Wójcik   +6 more
doaj   +1 more source

Exergy analysis and economic estimate of a novel solar and gas combined system

open access: yesCase Studies in Thermal Engineering, 2021
In this paper, a novel parabolic-trough solar and gas combined (PSGC) system is proposed to explore a new potential utilization approach of solar energy. The working principle of this PSGC system is introduced.
Gang Wang   +3 more
doaj   +1 more source

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

Do the Different Exergy Accounting Methodologies Provide Consistent or Contradictory Results? A Case Study with the Portuguese Agricultural, Forestry and Fisheries Sector

open access: yesEnergies, 2017
Three exergy accounting approaches are used to evaluate exergy efficiency: the Energy Resources Exergy Accounting (EREA), the Natural Resources’ Exergy Accounting (NREA) and the Extended Exergy Accounting (EEA).
Ricardo Manso   +2 more
doaj   +1 more source

Evaluating the Rationale for Folding Wing Tips Comparing the Exergy and Breguet Approaches [PDF]

open access: yes, 2017
The design and development processes for future aircraft aims to address the environmental and efficiency challenges needed to facilitate the engineering of concepts that are far more integrated and require a multidisciplinary approach.
Hayes, D.   +2 more
core   +1 more source

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