Results 1 to 10 of about 53,220 (190)

Optimization of accuracy in estimating the dynamic viscosity of MWCNT-CuO/oil 10W40 nano-lubricants

open access: yesEgyptian Informatics Journal, 2023
Artificial neural network (ANN) is one of the best models with good performance for predicting laboratory data, Due to its high accuracy, this design can be a suitable alternative to frequent and costly testing.
Mohammad Hemmat Esfe   +3 more
doaj   +1 more source

Advanced Loop Thermosiphon With Check Valve (ALT/CV): Thermal Performance and Behavior

open access: yesInternational Journal of Renewable Energy Development, 2021
Nanofluids (NFs) are an attractive alternative to traditional working fluids for thermosiphons, but the solid nanoparticles (NPs) within the NF can agglomerate and reduce the thermal performance.
Khridsadakhon Booddachan   +2 more
doaj   +1 more source

Comparison of thermal conductivity of water-based nanofluids with various combinations of MWCNT, CuO, and SiO2 nanoparticles for using in heating systems

open access: yesCase Studies in Thermal Engineering, 2023
The application of nanofluids (NFs) with improved efficiency and performance is currently a major problem for many industrial sectors. By comparing two water-based NFs (with identical nanoparticles (NPs) but with different participation percentages ...
Mohammad Hemmat Esfe   +2 more
doaj   +1 more source

Experimental study and sensitivity analysis of a new generation of special ternary hybrid nanofluids (THNFs) and investigation of factors affecting its thermal conductivity

open access: yesCase Studies in Thermal Engineering, 2022
During this research, for the first time, one of the thermophysical properties (relative thermal conductivity or RTC) of a special ternary hybrid nanofluid (THNF) is investigated. The results show that MWCNT-MgO-ZnO (15:50:35)/water THNFs have a suitable
Mohammad Hemmat Esfe   +2 more
doaj   +1 more source

Simulation of melting paraffin with graphene nanoparticles within a solar thermal energy storage system

open access: yesScientific Reports, 2023
In this paper, applying new structure and loading Graphene nanoparticles have been considered as promising techniques for enhancing thermal storage systems.
M. Jafaryar, M. Sheikholeslami
doaj   +1 more source

The efficacy of magnetic force on thermal performance of ferrofluid in a screw tube

open access: yesCase Studies in Thermal Engineering, 2023
The applications of ferro nanoparticles have been widely increased in heat exchangers due to their significant thermal properties. In current research, the computational technique is established to scrutinize the impact of the non-uniform Kelvin force ...
M. Barzegar Gerdroodbary   +3 more
doaj   +1 more source

Numerical investigation of wind velocity effects on evaporation rate of passive single-slope solar stills in Khuzestan province in Iran

open access: yesAlexandria Engineering Journal, 2023
Khuzestan Province is located in Iran and has average annual evaporation of over 2000 ml. It also encounters water scarcity and water salinity issues. To make proper use of the high evaporation rate in Khuzestan and help overcome the water scarcity issue,
Mohammad Hemmat Esfe, Davood Toghraie
doaj   +1 more source

Numerical simulation for impact of implement of reflector and turbulator within the solar system in existence of nanomaterial

open access: yesScientific Reports, 2023
Turbulent flow of oil based hybrid nanofluid within an absorber tube of concentrated solar system has been evaluated in this article. To concentrate the solar irradiation, the parabolic plate has been located below the tube and variable heat flux was ...
M. Sheikholeslami, M. Jafaryar
doaj   +1 more source

Heat transfer characteristics of closed-end thermosyphon (CE-TPCT)

open access: yesEngineering Science and Technology, an International Journal, 2022
This study investigated the heat transfer characteristics of a Closed-End Thermosyphon (CE-TPCT) made of copper tubes with 5.5 mm diameter. The experiments were conducted with working substance filling rates of 0%, 30%, 50%, and 70% of the volumetric ...
Thanya Parametthanuwat   +3 more
doaj   +1 more source

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