Effect of inclined magnetic field on the entropy generation in an annulus filled with NEPCM suspension

The encapsulation technique of phase change materials in the nanodimension is an innovative approach to improve the heat transfer capability and solve the issues of corrosion during the melting process. (is new type of nanoparticle is suspended in base fluids call NEPCMs, nanoencapsulated phase change materials. (e goal of this work is to analyze the impacts of pertinent parameters on the free convection and entropy generation in an elliptical-shaped enclosure filled with NEPCMs by considering the effect of an inclined magnetic field. To reach the goal, the governing equations (energy, momentum, and mass conservation) are solved numerically by CVFEM. Currently, to overcome the low heat transfer problem of phase change material, the NEPCM suspension is used for industrial applications. Validation of results shows that they are acceptable.(eresults reveal that the values of Nuave descend with ascending Ha while Ngen has a maximum at Ha 16. Also, the value of NT,MF increases with ascending Ha. (e values of Nuave and Ngen depend on nondimensional fusion temperature where good performance is seen in the range of 0.35 < θf < 0.6. Also, Nuave increases 19.9% and ECOP increases 28.8% whereasNgen descends 6.9% when ϕ ascends from 0 to 0.06 at θf 0.5. Nuave decreases 4.95% while Ngen increases by 8.65% when Ste increases from 0.2 to 0.7 at θf 0.35.http://www.hindawi.com/journals/mpeam2022Mechanical and Aeronautical Engineerin

Impact of fusion temperature on hydrothermal features of flow within an annulus loaded with nanoencapsulated phase change materials (NEPCMs) during natural convection process

Please read abstract in the article.http://www.hindawi.com/journals/mpe/am2022Mechanical and Aeronautical Engineerin

Viscous Dissipation Impact on Free Convection Flow of Cu-water Nanofluid in a Circular Enclosure with Porosity Considering Internal Heat Source

In this work, free convection of Cu-water nanofluid in an enclosure by considering internally heat generated in the porous circular cavity and the impacts of viscous dissipation are numerically evaluated by control volume finite element method (CVFEM). The outer and inner sides of the circular porous enclosure are maintained at a fixed temperature while insulating the other two walls. The impacts of diverse effective parameters including the Rayleigh number, viscous dissipation, and nanofluid concentration on features of heat transfer and fluid flow are examined. Moreover, a new correlation for the average Nusselt number is developed according to the study’s active parameters. It can be deduced by the results that the maximum value of the temperature is proportional to the viscous dissipation parameter

Heat transfer intensification of NEPCM-water suspension filled heat sink cavity with notches cooling tubes by applying the electric field

Please read abstract in the article.https://www.elsevier.com/locate/est2024-12-27hj2023Mechanical and Aeronautical Engineerin

Investigating the Relation Between Organizational Culture and Excellence Performance Based on EFQM Model in SMEs

Abstract: Current study is to investigate the relationship between organizational culture and excellence performance based on EFQM model in small and medium enterprises of Bandar Abbas (Iran). The study population consisted of 249 managers, deputies and experts in small and medium enterprises based in the industrial towns of Bandar Abbas and 152 of the statistical population using cluster sampling -randomly were selected as sample size. In order to collect data, 2 questionnaires were used. These 2 questionnaires&apos;&apos; were about organizational culture and excellence performance based on EFQM model and their validity and reliability was measured. Analysis of collected data was performed using Pearson correlation test and also describing the collected data, was performed using descriptive statistical methods such as frequency tables and graphs and the frequency histogram by computer and SPSS software. Result of the study showed that there is a significant relationship between different kinds of organizational culture and excellence performance based on EFQM model. Finally, limitations on this project and suggestions for further studies have been presented