Results 41 to 50 of about 32,826 (224)

Thermoeconomic approach for the analysis of control system of energy plants [PDF]

open access: yes, 2012
In this paper a thermoeconomic approach is applied to the dynamic model of a Power System in order to investigate the effects of the control system on the primary energy consumption and on the economic costs of the product.
Baccino   +14 more
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

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

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

Steady state simulation and exergy analysis of supercritical coal-fired power plant with CO₂ capture [PDF]

open access: yes, 2015
Integrating a power plant with CO₂ capture incurs serious efficiency and energy penalty due to use of energy for solvent regeneration in the capture process.
Kelsall, Greg   +2 more
core   +2 more sources

Sustainable use and production of energy in the 21st century [PDF]

open access: yes, 2015
It is foreseen that oil and gas will continue to be the key energy sources in the 21st century. Therefore, it is important that oil and gas be produced in a sustainable way during the next decades.
Gudmestad, O. T., Traa, K.
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

Exergy Analysis of a Shell and Tube Energy Storage Unit with Different Inclination Angles

open access: yesEnergies, 2023
To optimize the utilization of solar energy in the latent heat thermal energy storage (LHTES) system, this study conducts exergy analysis on a paraffin-solar water shell and tube unit established in the literature to evaluate the effects of different ...
Li Peng   +3 more
doaj   +1 more source

General methodology for exergy balance in ProSimPlus® process simulator [PDF]

open access: yes, 2012
This paper presents a general methodology for exergy balance in chemical and thermal processes integrated in ProSimPlus® as a well-adopted process simulator for energy efficiency analysis.
Baudet, Philippe   +5 more
core   +2 more sources

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