Experimental validation of CFD modelling for heat transfer coefficient predictions in axial flux permanent magnet generators

Haw, Lim Chin; Airoldi, G.; Dominy, Robert; Mahkamov, Khamid

doi:10.1016/j.ijthermalsci.2011.07.002

Cited by 15 publications

(5 citation statements)

References 15 publications

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“…Thermal analysis of PCB motors includes the thermal analytical, numerical, and experimental analysis [1, 11, 33, 35]. Finite element method (FEM) has given researchers a powerful tool to carry out complicated simulation of 3D heat dissipation, flow, and exchange in motors [68].…”

Section: Initial Design Choices and Considerations In Pcb Motorsmentioning

confidence: 99%

Design aspects, winding arrangements and applications of printed circuit board motors: a comprehensive review

Taqavi

Mirimani

2020

IET Electric Power Applications

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Printed circuit board (PCB) motors are witnessing increased interests and applications in the scientific communities and industry thanks to the advantages of compact size, high power density and efficiency, design flexibility, and low manufacturing cost. PCB has become a feasible and appropriate alternative to conventional round‐wire winding. It is applicable to any kind of electrical machines, such as axial‐flux machines and radial‐flux ones, in many applications. Moreover, it improves electromagnetic and thermal performances, which is affected by some design choices and winding arrangements. This study provides a comprehensive review of the PCB motors including the various aspects of initial electromagnetic design, performance analysis, winding arrangements, PCB coil design, and applications of PCB motors. Key references on the abovementioned aspects pertaining to the motor are discussed. Thus, offering researchers and engineers the most up‐to‐date information on the developments and progresses with the PCB motor design and technology.

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Section: Initial Design Choices and Considerations In Pcb Motorsmentioning

confidence: 99%

Design aspects, winding arrangements and applications of printed circuit board motors: a comprehensive review

Taqavi

Mirimani

2020

IET Electric Power Applications

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“…The most challenging part of the thermal analysis is computing the heat transfer coefficients. Governing equations, including continuity, momentum and energy equations [12][13][14][15][16][17] need to be solved. In [13], the stator body is considered as the main overheating part of the machine and numerical simulation is performed to find the convection heat transfer coefficients in the stator disk of an AF-PMSM.…”

Section: Introductionmentioning

confidence: 99%

“…They also presented two empirical correlations to compute the Nusselt number of the air gap clearance in both laminar and turbulent regimes. In [15,16], the experimental validation of CFD modelling for heat transfer coefficients in an AFPM generator was performed. The experimental results were compared to heat transfer coefficients predicted by CFD models.…”

Section: Introductionmentioning

confidence: 99%

New finite element based method for thermal analysis of axial flux interior rotor permanent magnet synchronous machine

Habibinia

Rostami

Feyzi

et al. 2020

IET Electric Power Applications

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A new method for computing convection heat transfer coefficients in axial flux permanent magnet synchronous machines (AF-PMSMs) is introduced. The method is based on a two-step finite element analysis (FEA). In the first step, a simple 2D model is introduced and fluid flow and temperature fields are studied using computational fluid dynamic (CFD) technique. Convective heat transfer coefficients for all heat transfer surfaces of the model are extracted from CFD analysis and are then used as inputs to a 3D thermal finite element model. Two case studies are considered to check the accuracy of the abovementioned two-step method. One of the case studies is an air-cooled AF-PMSM that has air inlet and outlet on its enclosure and the other case is a totally enclosed AF-PMSM. The correctness of the mentioned method is verified by practical measurements on the second case. In addition, an experimental setup is conducted to measure the temperature of different parts of the second case. It is observed that the results of the two-step CFD-FEA model are in good agreement with the experimental data. In the other case, the effect of inlet air velocity on heat transfer coefficients, as well as the thermal behaviour of the machine are explored.

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“…Recent advances in the area of Computational Fluid Dynamics (CFD) and further improvement of the computer hardware have made it possible to achieve accurate flow and thermal analysis of electrical machines [23]- [36].…”

Section: Introductionmentioning

confidence: 99%

“…The complexity of the rotating flow measurement and high cost of testing makes commercial CFD software packages a great tool to predict the flow behaviour. Extensive study in the heat transfer of the AFPM's rotor by air has been made in the past, yet focus was given to the sealed rotor [17], [27]- [28]and centre inletradial outlet configuration [21], [31]- [36]. The current paper pushes the research in this field forward by using extensive CFD simulations as the main tool to explore the validity of utilizing the ambient air to cool the rotor and PMs with various inlet/outlet configurations.…”

Section: Introductionmentioning

confidence: 99%

Air inlet/outlet arrangement for rotor cooling application of axial flux PM machines

Fawzal

Cîrstea

Woolmer³

et al. 2018

Applied Thermal Engineering

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Experimental validation of CFD modelling for heat transfer coefficient predictions in axial flux permanent magnet generators

Cited by 15 publications

References 15 publications

Design aspects, winding arrangements and applications of printed circuit board motors: a comprehensive review

Design aspects, winding arrangements and applications of printed circuit board motors: a comprehensive review

New finite element based method for thermal analysis of axial flux interior rotor permanent magnet synchronous machine

Air inlet/outlet arrangement for rotor cooling application of axial flux PM machines

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