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Entropy, Exergy and Entransy Analyses on Fabricated Shell and Spiral Tube Heat Exchanger
In this exploratory attempt, shell-spiral tube heat exchanger is constructed. Entropy, exergy and entransy concepts are applied to examine the performance of constructed heat exchanger at different flow rates and inlet temperatures of hot and cold fluids. Theoretically, Reynolds and Nusselt numbers are calculated with convective heat transfer coefficient and pressure drop through the spiral tube. Rates of entropy generation, exergy destruction, entransy dissipation, entransy dissipation based thermal resistances, entransy dissipation and entropy generation numbers are assessed for the constructed spiral tube heat exchanger through investigational outputs. Percentage augmentations and decrements are also found for the performance assessment properties to be acquainted with maximum or minimum augmentation/decrement at the equivalent flow rates of fluids. These experimental analyses are accomplished as: the highest effectiveness is 0.988 with the least entransy dissipation rate which is 224.171 W K. Entransy dissipation based thermal resistance is 0.013 K/W and the entransy dissipation number is 0.052 that are enhanced circumstances for a heat exchanger. After analyses, those working circumstances are recommended which provide smallest amount of entropy, exergy and entransy losses, but effectiveness ought to be as high as achievable. The advised conditions from these investigation efforts are; hot/cold fluid flow rates should be 0.001/0.037 kg/s and inlet temperatures should be 59/26.8 °C respectively, for this experimental work.
Entropy, Exergy and Entransy Analyses on Fabricated Shell and Spiral Tube Heat Exchanger
In this exploratory attempt, shell-spiral tube heat exchanger is constructed. Entropy, exergy and entransy concepts are applied to examine the performance of constructed heat exchanger at different flow rates and inlet temperatures of hot and cold fluids. Theoretically, Reynolds and Nusselt numbers are calculated with convective heat transfer coefficient and pressure drop through the spiral tube. Rates of entropy generation, exergy destruction, entransy dissipation, entransy dissipation based thermal resistances, entransy dissipation and entropy generation numbers are assessed for the constructed spiral tube heat exchanger through investigational outputs. Percentage augmentations and decrements are also found for the performance assessment properties to be acquainted with maximum or minimum augmentation/decrement at the equivalent flow rates of fluids. These experimental analyses are accomplished as: the highest effectiveness is 0.988 with the least entransy dissipation rate which is 224.171 W K. Entransy dissipation based thermal resistance is 0.013 K/W and the entransy dissipation number is 0.052 that are enhanced circumstances for a heat exchanger. After analyses, those working circumstances are recommended which provide smallest amount of entropy, exergy and entransy losses, but effectiveness ought to be as high as achievable. The advised conditions from these investigation efforts are; hot/cold fluid flow rates should be 0.001/0.037 kg/s and inlet temperatures should be 59/26.8 °C respectively, for this experimental work.
Entropy, Exergy and Entransy Analyses on Fabricated Shell and Spiral Tube Heat Exchanger
J. Inst. Eng. India Ser. C
Geete, Ankur (Autor:in) / Bhattacharjee, Ankur (Autor:in) / Patwa, Abhishek (Autor:in) / Pandey, Krishnam (Autor:in)
Journal of The Institution of Engineers (India): Series C ; 102 ; 897-908
01.08.2021
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Entropy, Exergy and Entransy Analyses on Fabricated Shell and Spiral Tube Heat Exchanger
| Springer Verlag | 2021
| British Library Online Contents | 2013
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