2014
DOI: 10.3390/e16084612
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Exergetic and Thermoeconomic Analyses of Solar Air Heating Processes Using a Parabolic Trough Collector

Abstract: This paper presents a theoretical and practical analysis of the application of the thermoeconomic method. A furnace for heating air is evaluated using the methodology. The furnace works with solar energy, received from a parabolic trough collector and with electricity supplied by an electric power utility. The methodology evaluates the process by the first and second law of thermodynamics as the first step then the cost analysis is applied for getting the thermoeconomic cost. For this study, the climatic condi… Show more

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Cited by 12 publications
(3 citation statements)
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“…Irreversibility is related to the consumption of natural resources and, therefore, to the cost of the products obtained. Despite its interesting meaning, exergy analysis application in building energy supply systems is relatively new and there are still many methodological aspects to solve; nevertheless, different applications of exergy have come up and some of them are found in references [15][16][17]. Furthermore, the name low-ex buildings is now used to designate low-energy consumption buildings, as state references [18,19].…”
Section: Exergy and Thermoeconomicsmentioning
confidence: 99%
“…Irreversibility is related to the consumption of natural resources and, therefore, to the cost of the products obtained. Despite its interesting meaning, exergy analysis application in building energy supply systems is relatively new and there are still many methodological aspects to solve; nevertheless, different applications of exergy have come up and some of them are found in references [15][16][17]. Furthermore, the name low-ex buildings is now used to designate low-energy consumption buildings, as state references [18,19].…”
Section: Exergy and Thermoeconomicsmentioning
confidence: 99%
“…For a general steady-state and steady flow process, the exergy balance equations are applied to find the exergy loss of each subsystem [19]. Exergy efficiencies often give more revealing insights into process performance than energy efficiencies, and can provide a measure of potential for improvement [20]. The exergy efficiency of each subsystem is defined as the ratio of exergy product rate to exergy input rate [3].…”
Section: Analysis For Exergy Flow and Exergy Efficiency Of Each Subsymentioning
confidence: 99%
“…Heat losses from parabolic trough solar collectors investigated by the thermal and thermodynamic analysis of a PTC were performed in different modes of concentration ratio and rim angle, by Mwesigye et al The exergy analysis of the PTC receiver was proposed by Padilla et al Their main parameters were the inlet temperature, mass flow rate, wind speed, and the intensity of the sun's radiation. Hernández‐Román et al conducted the exergy and thermo‐economic analyses of an air heater system in the PTC process. In 2015, the technical‐economic evaluation of a Kalina cycle for the PTC was proposed by Ashouri et al They examined the performance of the system, including a PTC, a storage tank, an auxiliary heater, and Kalina cycle, throughout the year in thermodynamic and economic terms.…”
Section: Introductionmentioning
confidence: 99%