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Characterization and application of forced cooling channels for traction motors in HEVs

Huang, Zhe LU ; Marquez, Francisco LU ; Alaküla, Mats LU and Yuan, Jinliang LU (2012) XXth International Conference on Electrical Machines (ICEM), 2012 In Proceedings, 2012 XXth International Conference... by Institute of Electrical and Electronics Engineers. Proceedings, 2012 XXth International Conference on Electrical Machines : Palais des Congrès et des Expositions de Marseille, Marseille, France, 02-05 September, 2012 p.1212-1218
Abstract
This paper presents the characterization of forced cooling channels with three different shapes which are applied in traction motors mounted in Hybrid Vehicles (HEVs) or Zero Emission Vehicles (ZEVs). Generally, there are two different positions of forced cooling channels in electric motors. One way is by drilling holes or cutting cooling channels inside the housing, which is called indirect cooling approach. The other way is to cut the cooling channels at the edges of housing or/and stator back to form direct cooling channels, where the coolant is in direct contact with the hot stator back. In both cases, choosing suitable shapes of cooling channels are necessary. In this paper, both heat transfer coefficient hf and pump power Wpump are... (More)
This paper presents the characterization of forced cooling channels with three different shapes which are applied in traction motors mounted in Hybrid Vehicles (HEVs) or Zero Emission Vehicles (ZEVs). Generally, there are two different positions of forced cooling channels in electric motors. One way is by drilling holes or cutting cooling channels inside the housing, which is called indirect cooling approach. The other way is to cut the cooling channels at the edges of housing or/and stator back to form direct cooling channels, where the coolant is in direct contact with the hot stator back. In both cases, choosing suitable shapes of cooling channels are necessary. In this paper, both heat transfer coefficient hf and pump power Wpump are calculated. The dimensional parameters are easily understood and also used for further thermal analysis of the completed machine by either Finite Element Analysis (FEA) or lumped parameter approaches. In addition, the dimensionless parameters Nusselt number Nu and Darcy friction factor f are evaluated with the aim to understand the characterizations for different channels. These parameters are easily used for further cooling channels optimization. In the end, the thermal analyses for a stator segment with three different shaped channels are carried on by applying the calculated results from Computational Fluid Dynamics (CFD) simulations. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
CFD forced cooling laminar flow thermal analysis traction motor
in
Proceedings, 2012 XXth International Conference... by Institute of Electrical and Electronics Engineers. Proceedings, 2012 XXth International Conference on Electrical Machines : Palais des Congrès et des Expositions de Marseille, Marseille, France, 02-05 September, 2012
pages
1212 - 1218
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
conference name
XXth International Conference on Electrical Machines (ICEM), 2012
external identifiers
  • Scopus:84870850014
ISBN
978-1-4673-0143-5
DOI
10.1109/ICElMach.2012.6350030
language
English
LU publication?
yes
id
f960f8de-a587-453e-a68f-249c0091d5e0 (old id 4350984)
date added to LUP
2014-03-06 11:14:40
date last changed
2016-10-13 04:37:21
@misc{f960f8de-a587-453e-a68f-249c0091d5e0,
  abstract     = {This paper presents the characterization of forced cooling channels with three different shapes which are applied in traction motors mounted in Hybrid Vehicles (HEVs) or Zero Emission Vehicles (ZEVs). Generally, there are two different positions of forced cooling channels in electric motors. One way is by drilling holes or cutting cooling channels inside the housing, which is called indirect cooling approach. The other way is to cut the cooling channels at the edges of housing or/and stator back to form direct cooling channels, where the coolant is in direct contact with the hot stator back. In both cases, choosing suitable shapes of cooling channels are necessary. In this paper, both heat transfer coefficient hf and pump power Wpump are calculated. The dimensional parameters are easily understood and also used for further thermal analysis of the completed machine by either Finite Element Analysis (FEA) or lumped parameter approaches. In addition, the dimensionless parameters Nusselt number Nu and Darcy friction factor f are evaluated with the aim to understand the characterizations for different channels. These parameters are easily used for further cooling channels optimization. In the end, the thermal analyses for a stator segment with three different shaped channels are carried on by applying the calculated results from Computational Fluid Dynamics (CFD) simulations.},
  author       = {Huang, Zhe and Marquez, Francisco and Alaküla, Mats and Yuan, Jinliang},
  isbn         = {978-1-4673-0143-5},
  keyword      = {CFD forced cooling laminar flow thermal analysis traction motor},
  language     = {eng},
  pages        = {1212--1218},
  publisher    = {ARRAY(0xa6d8ee0)},
  series       = {Proceedings, 2012 XXth International Conference... by Institute of Electrical and Electronics Engineers. 	 Proceedings, 2012 XXth International Conference on Electrical Machines : Palais des Congrès et des Expositions de Marseille, Marseille, France, 02-05 September, 2012},
  title        = {Characterization and application of forced cooling channels for traction motors in HEVs},
  url          = {http://dx.doi.org/10.1109/ICElMach.2012.6350030},
  year         = {2012},
}