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During the heat transfer, due to temperature differences, a share from the heat exergy content is destroyed. Consequently, the use of heat exchangers in thermodynamic cycles declines their efficiencies. The paper presents an original model for computing the exergy destruction during the heat transfer in a superheated steam generator. The model was applied for a Concentrated Solar Plants with molten...
To the basis of first law of thermodynamics, mainly applicable to engineering calculations; to the basis of the second law of thermodynamics - entropy analysis method, can be used to apply to theoretical analysis and engineering calculations. In this paper, a single performance valuation and entropy analysis for heat recovery equipment have been used, which is to make performance evaluation of heat...
The intention of this paper is to survey a bran-new soot-blowing optimization method based on the second law of thermodynamics. From the entropy theory of the second law of thermodynamics, irreversible energy loss of convective heating surfaces was analyzed. The calculation model of heat transfer entropy generation, flow resistance entropy generation, mass transfer entropy generation, soot-blowing...
The present work aims at studying the cooling performance of a thermoelectric device that integrated with integrated heat spreader (IHS) on a flip-chip plastic ball grid array (FC-PBGA) package. The new thermoelectric device herein is fabricated on the metal substrates by flip-chip assembly process. Thermal performance of the new package was comprehensive studied. The thermal resistances of IHS with/without...
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