Results 1 to 10 of about 41,996 (315)

Effect of natural convection on heat storage performance of tubular phase change heat accumulator

open access: yesJournal of Hebei University of Science and Technology, 2023
Aiming at the uncertaity of heat storage efficiency during the melting process of phase-change materials in the heat accumulator and the natural convection heat transfer process in the phase-change region, the influence of natural convection caused by ...
Jingzhi JIANG   +4 more
doaj   +1 more source

Heat Transfer Performance of Different Fluids During Natural Convection in Enclosures with Varying Aspect Ratios [PDF]

open access: yesE3S Web of Conferences, 2021
The heat transfer process takes place in numerous applications through the natural convection of fluids. Investigations of the natural convection heat transfer in enclosures have gained vital importance in the last decade for the improvement in thermal ...
Pendyala Rajashekhar   +2 more
doaj   +1 more source

Effect of Heat Source Placement on Natural Convection from Cylindrical Surfaces

open access: yesEnergies, 2020
Placement of heat source can play a significant role in final heat output, or heat source effectivity. Because of this, there is a need to analyze thermal fields of the heat exchange system by natural convection, where the description by criterion ...
Andrej Kapjor   +2 more
doaj   +1 more source

Transient Natural Convection in an Enclosure with Variable Thermal Expansion Coefficient and Nanofluid Properties [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2018
Transient natural convection is numerically investigated in an enclosure using variable thermal conductivity, viscosity, and the thermal expansion coefficient of Al2O3-water nanofluid.
Esmaeil Ghahremani
doaj   +1 more source

Numerical Investigation into the Natural Convection of Cryogenic Supercritical Helium in a Spherical Enclosure

open access: yesEnergies, 2021
As an ideal pressurized gas, helium, especially supercritical helium, has been widely used in the pressurization system of various launch vehicles and spacecraft.
Yinan Qiu   +6 more
doaj   +1 more source

Phase-field-lattice Boltzmann study for lamellar eutectic growth in a natural convection melt [PDF]

open access: yesChina Foundry, 2017
In the present study, the influence of natural convection on the lamellar eutectic growth is determined by a phase-field-lattice Boltzmann study for Al-Cu eutectic alloy.
Ang Zhang, Zhi-peng Guo, Shou-mei Xiong
doaj   +1 more source

Energy reduction for commercial freezer by force convection cooling of heatsink

open access: yesEnergy Reports, 2022
Commercial freezers are commonly used the outer wall as a heatsink. This heatsink needs surrounded ambient air for cooling, which is the natural convection mechanism.
Surasit Thiangchanta   +3 more
doaj  

Performance and sustainability evaluation of rice husk-powered dryer under natural and forced convection mode

open access: yesEngineering and Applied Science Research, 2023
Sun drying method has been used for drying agricultural commodities for centuries worldwide. The sun drying can be performed either by direct drying of the product under sunlight or drying using a solar collector-based dryer.
Fredy Surahmanto   +3 more
doaj  

Quantitative evaluation of the natural convection effect on thermal conductivity measurement with transient plane source method

open access: yesCase Studies in Thermal Engineering, 2023
When measuring the thermal conductivity of liquids with transient methods, natural convection occurs inevitably and whether it can be ignored is unknown.
Ke-Fan Wu   +4 more
doaj  

Investigating the cooling of solar photovoltaic modules under the conditions of Riyadh

open access: yesJournal of King Saud University: Engineering Sciences, 2023
Cooling enhances the energy conversion efficiency and output of photovoltaic (PV) panels. In this work, the effects of natural convection, forced convection, and evaporative cooling on the performance of polycrystalline PV panels were investigated.
A. Almuwailhi, O. Zeitoun
doaj  

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