Опубликована: Янв. 1, 2023
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Язык: Английский
Опубликована: Янв. 1, 2023
Download This Paper Open PDF in Browser Add to My Library Share: Permalink Using these links will ensure access this page indefinitely Copy URL DOI
Язык: Английский
Renewable Energy, Год журнала: 2023, Номер 214, С. 140 - 153
Опубликована: Июнь 3, 2023
Язык: Английский
Процитировано
23Applied Thermal Engineering, Год журнала: 2023, Номер 236, С. 121454 - 121454
Опубликована: Сен. 1, 2023
Язык: Английский
Процитировано
15Renewable and Sustainable Energy Reviews, Год журнала: 2024, Номер 199, С. 114523 - 114523
Опубликована: Май 9, 2024
Язык: Английский
Процитировано
6Chemosphere, Год журнала: 2023, Номер 343, С. 140226 - 140226
Опубликована: Сен. 21, 2023
Язык: Английский
Процитировано
13Water, Год журнала: 2023, Номер 15(8), С. 1458 - 1458
Опубликована: Апрель 8, 2023
In this paper, the fabrication and optimization of a spiral-tube heat exchanger (STHE) were considered for improving transfer rate efficiency traditional instantaneous water heaters. The large number heaters exported from customers “Garman Gas Toos” company, which was mainly due to corrosion leakage, imposed lot cost credit reduction company. high energy consumption second reason that justified working on new STHE. main innovation research is design construction with smaller size higher help identifying factors affecting its rate. order optimize responses, three variables considered, including fin (per unit area), exhaust outlet diameter, flow Implementing face-centered central composite (CCD), proposed levels corresponding response measured in laboratory. Using experiments (DoE), effects their mutual interaction evaluated. Response surface methodology (RSM) devised build prediction model obtain values responses optimal. Based results, optimum conditions STHE found be an diameter 4 cm 6 L/min coupled six fins. At optimal point, rate, as variables, obtained 85% 8480 W, respectively.
Язык: Английский
Процитировано
10Applied Thermal Engineering, Год журнала: 2025, Номер unknown, С. 126611 - 126611
Опубликована: Май 1, 2025
Язык: Английский
Процитировано
0International Journal of Green Energy, Год журнала: 2024, Номер 21(9), С. 2128 - 2141
Опубликована: Янв. 17, 2024
Entropy generation analysis is a useful method for studying the relationship between heat transfer and pressure drop in flow boiling. The boiling process an actual refrigeration system inevitably affected by oil. Therefore, effect of oil on entropy needs to be investigated. A new non-azeotropic ternary refrigerant mixture, R447A, was selected as working fluid. Subsequently, models R447A with without were established. effects individual parameters per unit tube length under different conditions proposed benchmark comparison. results show that there optimal mass flux corresponding minimum at specific concentration, decreases increasing concentration. diameter also affects fluid oil, which increases decreasing smaller than same tube. When concentration 0–4.95%, total exhibits trend. within scope this research, addition beneficial reducing exchangers.
Язык: Английский
Процитировано
3Journal of Energy Storage, Год журнала: 2023, Номер 72, С. 108507 - 108507
Опубликована: Авг. 7, 2023
Язык: Английский
Процитировано
6Energy, Год журнала: 2024, Номер 307, С. 132675 - 132675
Опубликована: Авг. 5, 2024
Язык: Английский
Процитировано
2International Journal of Numerical Methods for Heat & Fluid Flow, Год журнала: 2023, Номер 33(12), С. 3994 - 4014
Опубликована: Сен. 4, 2023
Purpose The purpose of the study is to numerically investigate characteristics laminar heat transfer and fluid flow in a double tube exchanger (DTHE) using water-aluminum oxide (Al 2 O 3 ) nanofluid. examines effects nanofluid both counter parallel configurations. Furthermore, an exergy analysis conducted assess impact on destruction. Design/methodology/approach single-phase method has been used for Al nanoparticles water as base regime Reynolds numbers from 400 2,000. nanoparticle volume fractions (0 0.1), Nusselt number, coefficient, pressure drop, performance evaluation criteria (PEC) direction have studied. Findings findings indicate that incorporation into enhances rate DTHE. This enhancement attributed improved thermal properties working its boundary layer. PEC increase by approximately 19.5%, 58% 1.2, respectively, comparison pure water. Conversely, drop experiences 5.3 times relative Exergy reveals nanofluids exhibit lower destruction compared showed better agreement with experimental results two-phase method. Originality/value Dimensionless correlations were derived validated numerical number configurations based fraction high accuracy predict DTHE without performing time-consuming simulations. Also, was performed compare between
Язык: Английский
Процитировано
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