A Thematic Review on Mathematical Model for Convective Boundary Layer Flow

Haryatie, Mohd Kanafiah Siti Farah; Kasim, Abdul Rahman Mohd; Syazwani, Zokri Mohd; Syamilah, Arifin Nur

doi:10.37934/arfmts.86.2.107125

Cited by 2 publications

(2 citation statements)

References 71 publications

(88 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They found that the current is generated by the magnetic flux leaking inside the coils (the core of the transformer), and as a result of the oil coming into contact with the metal components, heat is transferred from the coils through the oil to the fins, so that the temperature of the hot spot, which does not have a fixed location, decreases. Kanafiah et al, [14] Analyzed articles that rely on the mathematical model to solve fluid flow problems using the thematic analysis program ATLAS.ti 8. This review paper adopts a review of only 50 articles on the topic as final articles from 2015 to 2020.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Electrical Power Transformer Fins Design Technology: Numerical Analysis and Experimental Validation

Ali Shokor Golam

2024

ARFMTS

View full text Add to dashboard Cite

The study includes numerical analysis and experimental verification on an electrical power distribution transformer (250 kVA, 11 kW, Oil Natural Air Natural). ANSYS Fluent R3 2019 software was used to develop the numerical simulation model. The validity of the numerical model was confirmed by comparing the results of the numerical model and experimental data. The study aims to improve the efficiency and performance of electrical power distribution transformers by proposing a design that reduces the temperature of the transformer while maintaining its traditional size. Numerically, the effect of fin geometry on the temperature and density of transformer oil was studied. Four different fin designs were proposed and compared with the traditional design. According to the results, all proposed designs contributed to improving the cooling performance of the transformer compared to the traditional design. Design A is similar to the traditional transformer design, with the only modification being manipulation of the fin length, and achieves an average oil temperature reduction of 4 K. Design B showed the smallest temperature drop of the four designs, with a 3 K drop. Designs C and D include ventilation channels that match the shape of the fin, providing distinct design differences. The difference between both designs relied on the fact that for design C, the orthogonally of fin plates was retained. On the other hand, in design D, skewing of fin plates was introduced. Design D proved to be the most effective in reducing the average oil temperature, being reduced by 10 K. On the other hand, Design C reduced the average oil temperature by 7 K.

show abstract

Section: Introductionmentioning

confidence: 99%

Evaluation of the Electrical Power Transformer Fins Design Technology: Numerical Analysis and Experimental Validation

Ali Shokor Golam

2024

ARFMTS

View full text Add to dashboard Cite

show abstract

“…Boundary conditions (BC) tell what the solutions of a model would be on the boundaries whereas surface geometry is the shape and condition of where the movement of analysed fluid is. There are four types of boundary conditions that are commonly used which are convective boundary condition (CBC), constant wall temperature (CWT), constant heat flux (CHF) and Newtonian Heating (NH) [7]. As for the geometry, flat plate, stretching/shrinking sheet, thin needle, rotating disk, vertical plate, sphere and horizontal circular cylinder are several of the geometries that interest the researchers which lead to an increasing number of publications every year [5].…”

Section: Introductionmentioning

confidence: 99%

The Thematic Review on Convective Heat Transfer of Nanofluid over Horizontal Circular Cylinder

Farahanie Fauzi,

Abdul Rahman Mohd Kasim,

Hussein Ali Mohammed Al-Sharifi

et al. 2023

ARFMTS

View full text Add to dashboard Cite

Convective heat transfer refers to thermal energy transfer from one place to another due to the movement of fluid. To increase the performance of thermal energy transfer, nanoparticles are diluted into the fluid resulting nanofluid. Even though there are lots of studies have been conducted on the convection heat transfer of nanofluid, there are scarce studies that review the patterns of mainly used mathematical model, boundary conditions, surface geometry and method of solution. Therefore, this paper aims to review the studies on convective heat transfer of nanofluid over horizontal circular cylinder. The focus is to review published articles in the year 2014 until 2023. The reviewed articles were extracted using the advanced documents search function in SCOPUS and WOS databases. Of 67 identified articles, only 37 were selected after undergoing screening process. The result of this thematic review identifies that besides Buongiorno and Tiwari and Das models, mathematical models for non-Newtonian fluid like Viscoelastic, Casson, Jeffrey and Williamson models are also used in modeling convection heat transfer of nanofluid.

show abstract

A Thematic Review on Mathematical Model for Convective Boundary Layer Flow

Cited by 2 publications

References 71 publications

Evaluation of the Electrical Power Transformer Fins Design Technology: Numerical Analysis and Experimental Validation

Evaluation of the Electrical Power Transformer Fins Design Technology: Numerical Analysis and Experimental Validation

The Thematic Review on Convective Heat Transfer of Nanofluid over Horizontal Circular Cylinder

Contact Info

Product

Resources

About