An Integrated Cooling System for Hybrid Electric Vehicle Motors: Design and Simulation

Huang, Junkui; Naini, Shervin Shoai; Miller, Richard S.; Wagner, John R.; Rizzo, Denise; Sebeck, Katherine; Shurin, Scott

doi:10.4271/2018-01-1108

Cited by 15 publications

(8 citation statements)

References 18 publications

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“…To analyze the forced convection across the surface of the fins, the following equation is used [31]:…”

Section: Convectionmentioning

confidence: 99%

Thermal management of Induction Motor through the combination of air-cooling and an integrated water-cooling system

Madhavan

Konda

et al. 2023

Preprint

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In this paper, the thermal management element strategies of the induction motor are developed to assure better endurance and boost efficiency. As the main result, the thermal analysis of an air-cooled and large-capacity induction motor is given considering well-known heat distribution problems. Moreover, this study also presents an integrated approach with two or more cooling strategies to be the need of the hour. The integrated system comprising air- and water-cooled systems are investigated using SolidWorks 2017 and ANSYS Fluent version 2021. Three different flow rates of water 5 LPM, 10 LPM and 15 LPM are analyzed and compared with a conventional air-cooled induction motor, which was validated with the available published resources. Performed analyses indicate that for different flow rates of 5 LPM, 10 LPM and 15 LPM respectively, we have obtained a reduction of temperature accordingly of 2.94%, 4.79% and 7.69%. Hence, the results indicated that an integrated induction motor is efficient in bringing down the temperature compared to air cooled induction motor.

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“…To analyze the forced convection across the surface of the fins, the following equation is used [31]:…”

Section: Convectionmentioning

confidence: 99%

Thermal management of Induction Motor through the combination of air-cooling and an integrated water-cooling system

Madhavan

Konda

et al. 2023

Preprint

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“…The cabin heat load is taken as 5 kW (1.5 tons) as proposed by (Fayazbakhsh and Bahrami, 2013), while the heat to be removed from the battery and motor are 5 kW (Tian and Gu, 2019;Arora and Kapoor, 2019) and 10 kW (Gronwald and Kem, 2021) respectively. Several cooling methods like using phase change materials (Bellettre et al, 1997), oil jet impingement (Davin et al, 2015), using heat pipes (Putra and Ariantara, 2017;Huang et al, 2018;Huang et al, 2019) have been proposed for electric motors. Similarly, air cooling, liquid cooling, phase change materials, heat pipe based cooling, refrigeration based cooling, hybrid cooling, hydrogels based cooling system, using vortex generators, thermoelectric coolers were studied for battery cooling as reviewed by Tete et al (2021) and Zhang et al (2022).…”

Section: Cooling Modes Of Electric Vehiclementioning

confidence: 99%

Comprehensive exergy analysis of thermal management of cabin, battery and motor in electric vehicles

Sreekanth

Feroskhan²,

Gobinath³

et al. 2022

Int. J. Appl. Sci. Eng.

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The world is aiming to shift to electric vehicles by year 2030 and one of the hurdles in the path is thermal management in the battery, motor and cabin. Even though there are several cooling methods available, their choice for a particular application may not be thermodynamically efficient. This study aims to thermodynamically evaluate the performance of popular cooling methods. A simulation and second law analysis of three different thermal management schemes meant to be applicable to electric vehicles has been presented in this paper. For the first time, the requirement of the passenger cabin, battery as well as motor cooling has been included in the study. The study is conducted aiming at a typical passenger car to be operating in tropical conditions with a lithium-ion battery capacity of 30 kWh and motor power of about 96 kW. Air cooling (Scheme 1), and its combinations using refrigerant (Scheme 2) as well as ethylene glycol (Scheme 3) are considered to evaluate the performance of the thermal management using the first and second laws of thermodynamics. The performance also is evaluated using two different refrigerants namely R1234yf and R134a. The models are formulated using a flow sheeting software package and several thermodynamic properties are evaluated and presented. The energetic and exergetic Coefficient of Performance (CoP) is found to be maximum for the scheme 1 while the exergy destruction is maximum for the motor in schemes 2 and 3. Among the major components, the condenser has the least amount of exergy destruction. Overall, most of the exergy is destructed in scheme 1 while that in schemes 2 and 3 is almost identical.

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“…An example for cooling the windings by a ceramic direct winding heat exchangers with water/glycol mixture is given by Sixel et al [154]. • Electric traction motor cooling jackets with refrigerant or evaporation cooling [155,156] • Winding cooling by fluid pool boiling [157,158] • Hollow winding conductors with integrated phase-change material [159] • Rotor/stator cooling by heat pipes or pulsating heat pipes [160][161][162][163][164][165] • Rotor/shaft cooling by thermosiphons [151,152] The heat transfer phenomena and design in evaporative cooling concepts are not part of this research. The referenced sources are given for further information.…”

Section: G Direct Winding Cooling Techniquesmentioning

confidence: 99%

Traction Motor Cooling Systems: A Literature Review and Comparative Study

Gronwald

Kern

2021

IEEE Trans. Transp. Electrific.

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More efficient cooling systems are an enabler for the increase in power-density in an electric traction motor. Contemplating to existing reviews, this paper presents a comprehensive collection of heat transfer mechanisms for the different heat removal techniques used in electric traction motors. In the first section, an overview of various cooling concepts in existing and future traction motors is presented and the cooling approaches are compared. The following literature review compiles geometry-based calculation formulas of the different mechanisms of cooling heat transfer applied in motor-technology. Furthermore general heat transfer phenomena appearing in electric traction motors are reviewed and compiled for easy access. Various specifically relevant aspects, including rotor shaft cooling, different spray cooling concepts, different air convection phenomena, bearing heat transfer and the stator-housing-contact, are examined in more detail. For validation of the review result, based on a well-known motor design a thermal analysis and comparison of the different cooling methods is carried out. Modeling is done with a lumped parameter thermal networks (LPTN). The paper concludes demonstrating the advantages and disadvantages of the different cooling concepts based on the collection of modeling data.

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An Integrated Cooling System for Hybrid Electric Vehicle Motors: Design and Simulation

Cited by 15 publications

References 18 publications

Thermal management of Induction Motor through the combination of air-cooling and an integrated water-cooling system

Thermal management of Induction Motor through the combination of air-cooling and an integrated water-cooling system

Comprehensive exergy analysis of thermal management of cabin, battery and motor in electric vehicles

Traction Motor Cooling Systems: A Literature Review and Comparative Study

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