Comparison of electro-thermal performance of advanced cooling techniques for electric vehicle motors

Tikadar, Amitav; Johnston, David; Kumar, Naveen; Joshi, Yogendra; Kumar, Satish

doi:10.1016/j.applthermaleng.2020.116182

Cited by 81 publications

(21 citation statements)

References 25 publications

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“…The problem of increasing the reliability of transport electric machines, and in particular the study of fatigue strength processes of electrical materials (namely, insulation), is also given much attention in various research works. [1][2][3][4][5][6][7][8][9][10][11]. Such a concept as fatigue failure of insulation material refers to a type of mechanical failure.…”

Section: Introductionmentioning

confidence: 99%

Fatigue aging of insulation of traction motors of diesel locomotives

Shrajber

2023

E3S Web Conf.

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This paper analyzes the problem of occurrence and development of fatigue processes in the insulation of traction motors of autonomous locomotives. Factors causing destruction (cracking, delamination, occurrence of voids) of insulation in operation have been studied in the course of the research. Three characteristic stress cycles (reversible, repetitive, random) were described to make fatigue failure predictions. Outcomes of investigations of temperature conditions of windings of electric machines of diesel locomotives show that during operation the insulation experiences variable thermomechanical stresses. Received data can be recommended to take into account during the creation of new electric machines for diesel locomotives, as well as during the operation and resource recovery of already existing ones.

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Section: Introductionmentioning

confidence: 99%

Fatigue aging of insulation of traction motors of diesel locomotives

Shrajber

2023

E3S Web Conf.

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“…The transmission systems as well as the motors are quite well established and efficient. A major limitation that could hinder the development of EVs is the thermal management, especially that pertaining to the battery (Das et al, 2020) and motor (Tikadar et al, 2021). Poor battery thermal management could lead to thermal runaway or poor battery life (Das et al, 2020) while poor motor thermal management could damage the magnets and hamper the magnetic field development (Tikadar et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…A major limitation that could hinder the development of EVs is the thermal management, especially that pertaining to the battery (Das et al, 2020) and motor (Tikadar et al, 2021). Poor battery thermal management could lead to thermal runaway or poor battery life (Das et al, 2020) while poor motor thermal management could damage the magnets and hamper the magnetic field development (Tikadar et al, 2021). To make the problem even worse, the thermal limits of the battery, especially the now popular Lithium ion battery is quite narrow and lies in between 15°C and 50°C.…”

Section: Introductionmentioning

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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“…A major issue with EVs is the thermal management. The main components which are the battery [1] and motor [2] need to be operated within a narrow window of temperature. Batteries are not allowed to heat up beyond 50℃ which can result in thermal run away.…”

Section: Introductionmentioning

confidence: 99%

A Review of the Exergy Analysis of Thermal Management Systems in Electric Vehicles

Sreekanth

Feroskhan

2021

Int. J. Eng. Tech. Mgmt. Res.

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Exergy analysis is an advanced and a fair method of performance evaluation compared to the traditional energy analysis. In this article, a review of the exergy analysis studies carried out in the field of thermal management of electric vehicles is conducted. Studies conducted on battery, electric motor, cabin and electronics have been considered. It is noted that most of the work is done on battery thermal management. The nature of the work, methods used, parameters varied and parameters evaluated are listed. It can be found that the amount of work carried out in this field is very much limited. Hence, the scope of future work is more and is described in the conclusions.

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Comparison of electro-thermal performance of advanced cooling techniques for electric vehicle motors

Cited by 81 publications

References 25 publications

Fatigue aging of insulation of traction motors of diesel locomotives

Fatigue aging of insulation of traction motors of diesel locomotives

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

A Review of the Exergy Analysis of Thermal Management Systems in Electric Vehicles

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