Опубликована: Янв. 1, 2024
The study investigates improved energy conversion efficiency in solar thermal systems using an oscillating magnetic field nanofluid applications. Three concentrations of magnetite/ethylene glycol nanoparticles and ethylene alone are evaluated.
Язык: Английский
Open Physics, Год журнала: 2024, Номер 22(1)
Опубликована: Янв. 1, 2024
Abstract The spiral-wound heat exchanger is a key equipment in the liquefied natural gas application, but flow and transfer mechanisms remain unclarified. In this study, three-dimensional numerical model created, focusing on exploring impact of four crucial structural parameters performance gas, including external diameter tubes, core cylinder, longitudinal pitch tubes same layer, radial tube bundles between adjacent layer. It was found that diameter, cylinder had significant effects Nu Δ p m . optimal shell side obtained at medium size. weak effect both sides, corresponding to maximum values sides increased with increase inlet Reynolds number. Under centrifugal force, shifted tendency shown by velocity temperature fields.
Язык: Английский
Процитировано
0
Journal of Thermal Engineering, Год журнала: 2024, Номер unknown, С. 562 - 571
Опубликована: Янв. 1, 2024
Direct absorption evacuated tube solar collectors are a new type of collector that has great potential to use in system.In the present work, energy analysis direct employing Al 2 O 3 nanoparticles is investigated numerically.A three-dimensional computational fluid dynamics simulation model developed ANSYS-Fluent software.The working fluids which selected this study dispersed water and EG.The effect two volume fractions (0.04% 0.06%) nanofluid on thermal performance DAETC.In addition, temperature distribution system examined based different nanofluids.The results show outlet difference 0.04% /EG improved by 19.34% with respect /water for 0.06% 16.45% nanofluid, respectively.The also reveal efficiency /water, /EG, nanofluids 69.77%,71.39%, 66.68%, 69.43%, have highest difference, respectively.
Язык: Английский
Процитировано
0
Energy Conversion and Management, Год журнала: 2024, Номер 320, С. 118953 - 118953
Опубликована: Сен. 3, 2024
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2024
The study investigates improved energy conversion efficiency in solar thermal systems using an oscillating magnetic field nanofluid applications. Three concentrations of magnetite/ethylene glycol nanoparticles and ethylene alone are evaluated.
Язык: Английский
Процитировано
0
Опубликована: Янв. 1, 2024
The study investigates improved energy conversion efficiency in solar thermal systems using an oscillating magnetic field nanofluid applications. Three concentrations of magnetite/ethylene glycol nanoparticles and ethylene alone are evaluated.
Язык: Английский
Процитировано
0