NDLI: Iterative conjugate heat transfer analysis for heat transfer enhancement of an externally cooled three-phase induction motor

Content Provider	IET Digital Library
Author	Tiwari, Ankit Yavuzkurt, Savas
Abstract	A novel iterative conjugate heat transfer method is proposed for thermal modelling of a drill pump motor which is a constant speed three-phase induction motor. The major advantage of this technique is that it enables computational fluid dynamics (CFD) and heat transfer analysis of the rotor and the stator in a segregated manner. The two are then coupled in a separate annulus model, which represents the air gap, via boundary conditions on the annulus walls. This greatly reduces the total number of computational cells and enables good quality mesh generation – a pre-requisite for accurate CFD predictions. To validate this method, a baseline CFD and heat transfer analysis was done using FLUENT and the maximum temperature prediction was found to be within 1.75% of the previously done experiments on the existing design of the machine. Further, this method was applied to develop a heat transfer enhancement solution which reduced the maximum temperature in the drill motor from 203.5 °C to 172.9 °C.
Starting Page	99
Ending Page	107
Page Count	9
ISSN	17518660
Volume Number	11
e-ISSN	17518679
Issue Number	Issue 1, Jan (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-epa/11/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-epa.2016.0194
Journal	IET Electric Power Applications
Publisher Date	2017-01-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Air Gap Annulus Walls Asynchronous Machine Boundary Condition CFD Computational Fluid Dynamics Constant Speed Three-phase Induction Motor Cooling Drill Pump Motor Externally Cooled Three-phase Induction Motor FLUENT Heat Transfer Enhancement Induction Motors Iterative Conjugate Heat Transfer Analysis Maximum Temperature Prediction Mesh Generation Quality Rotor Rotors Separate Annulus Model Stator Stators Thermal Modelling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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