Download or read book Advanced Battery Thermal Management for Electrical drive Vehicles Using Reciprocating Cooling Flow and Spatial resolution Lumped capacitance Thermal Model written by Rajib Mahamud and published by . This book was released on 2011 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal management of traction battery systems for electrical-drive vehicles directly affects vehicle dynamic performance, long-term durability and cost of the battery systems. The time-efficient yet accurate computational model for the battery thermal management system is essential to improve the performance, safety, and life time of the battery systems. In this analysis, the thermal management system is divided into two different perspectives: pack level and cell-level thermal management system. For the pack level modeling, a new battery thermal management method using a reciprocating air flow for cylindrical Li-ion (LiMn 2 O4 /C) cells was numerically analyzed using (i) a two-dimensional Computational Fluid Dynamics (CFD) model and (ii) a lumped-capacitance thermal model for battery cells and a flow network model. The results of the CFD model were validated with the experimental results of in-line tube-bank systems which approximates the battery cell arrangement considered for this study. The numerical results showed that the reciprocating flow can reduce the cell temperature difference of the battery system by about 4°C (72 % reduction) and the maximum cell temperature by 1.5°C for a reciprocation period of 120 seconds as compared with the uni-directional flow case. Such temperature improvement attributes to the heat redistribution and disturbance of the boundary layers on the formed on the cells due to the periodic flow reversal. From the cell level concern, the spatial-resolution, lumped-capacitance thermal models for cylindrical battery cells under high Biot number (Bi>1) conditions where the classical lumped-capacitance thermal model is inapplicable because of the significant temperature variation in the battery cells was presented in this analysis. The improved lumped-capacitance thermal models were formulated using first- and second-order Hermite integral approximations. For a validation of the results from the lumped-capacitance models, one-dimensional, transient analytical (exact) solutions using the Green function were obtained for the cylindrical Li-ion battery cells. It was found from the comparison of the results from the computational models that the spatial-resolution, lumped-capacitance thermal models accurately predict the temperatures (core, skin and area-averaged) of the battery cell under various battery duty cycles for a wide range of the Biot numbers covering air cooling to liquid cooling conditions. The battery heat generation was approximated by uniform volumetric joule and reversible (entropic) losses.
Download or read book Modeling and Simulation of Lithium ion Power Battery Thermal Management written by Junqiu Li and published by Springer Nature. This book was released on 2022-05-09 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the thermal management technology of lithium-ion batteries for vehicles. It introduces the charging and discharging temperature characteristics of lithium-ion batteries for vehicles, the method for modeling heat generation of lithium-ion batteries, experimental research and simulation on air-cooled and liquid-cooled heat dissipation of lithium-ion batteries, lithium-ion battery heating method based on PTC and wide-line metal film, self-heating using sinusoidal alternating current. This book is mainly for practitioners in the new energy vehicle industry, and it is suitable for reading and reference by researchers and engineering technicians in related fields such as new energy vehicles, thermal management and batteries. It can also be used as a reference book for undergraduates and graduate students in energy and power, electric vehicles, batteries and other related majors.
Download or read book Thermal Management of Electric Vehicle Battery Systems written by Ibrahim Din¿er and published by John Wiley & Sons. This book was released on 2017-01-03 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Management of Electric Vehicle Battery Systems provides a thorough examination of various conventional and cutting edge electric vehicle (EV) battery thermal management systems (including phase change material) that are currently used in the industry as well as being proposed for future EV batteries. It covers how to select the right thermal management design, configuration and parameters for the users’ battery chemistry, applications and operating conditions, and provides guidance on the setup, instrumentation and operation of their thermal management systems (TMS) in the most efficient and effective manner. This book provides the reader with the necessary information to develop a capable battery TMS that can keep the cells operating within the ideal operating temperature ranges and uniformities, while minimizing the associated energy consumption, cost and environmental impact. The procedures used are explained step-by-step, and generic and widely used parameters are utilized as much as possible to enable the reader to incorporate the conducted analyses to the systems they are working on. Also included are comprehensive thermodynamic modelling and analyses of TMSs as well as databanks of component costs and environmental impacts, which can be useful for providing new ideas on improving vehicle designs. Key features: Discusses traditional and cutting edge technologies as well as research directions Covers thermal management systems and their selection for different vehicles and applications Includes case studies and practical examples from the industry Covers thermodynamic analyses and assessment methods, including those based on energy and exergy, as well as exergoeconomic, exergoenvironmental and enviroeconomic techniques Accompanied by a website hosting codes, models, and economic and environmental databases as well as various related information Thermal Management of Electric Vehicle Battery Systems is a unique book on electric vehicle thermal management systems for researchers and practitioners in industry, and is also a suitable textbook for senior-level undergraduate and graduate courses.
Download or read book Thermal Management for Batteries written by Hafiz Muhammad Ali and published by Elsevier. This book was released on 2024-03-15 with total page 526 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal Management of Batteries presents a comprehensive examination of the various conventional and emerging technologies used for thermal management of batteries and electronics. With an emphasis on advanced nanofluids, the book provides step-by-step guidance on advanced techniques at the component and system level for both active and passive technologyStarting with an overview of the fundamentals, each chapter quickly builds into a comprehensive treatment of up-to-date technologies. The first part of the book discusses advanced battery technologies, while the second part addresses the design and performance optimization of battery thermal management systems. Power density and fast charging mechanisms of batteries are considered, as are role of thermal management systems on performance enhancement. The book discusses the design selection of various thermal management systems, parameters selection for different configurations, the operating conditions for different battery types, the setups used for experimentation and instrumentation, and the operation of thermal management systems. Advanced techniques such as heat pipes, phase change materials, nanofluids, novel heat sinks, and two phase flow loops are examined in detail.Presenting the fundamentals through to the latest developments alongside step-by-step guidance, mathematical models, schematic diagrams, and experimental data, Thermal Management of Batteries is an invaluable and comprehensive reference for graduates, researchers, and practicing engineers working in the field of battery thermal management, and offers valuable solutions to key thermal management problems that will be of interest to anyone working on energy and thermal heat systems. - Critically examines the components of batteries systems and their thermal energy generation - Analyzes system scale integration of battery components with optimization and better design impact - Explores the modeling aspects and applications of nanofluid technology and PCMs, as well as the utilization of machine learning techniques - Provides step-by-step guidance on techniques in each chapter that are supported by mathematical models, schematic diagrams, and experimental data
Download or read book Integrated Vehicle Thermal Management Combining Fluid Loops in Electric Drive Vehicles Presentation written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plug-in hybrid electric vehicles and electric vehicles have increased vehicle thermal management complexity, using separate coolant loop for advanced power electronics and electric motors. Additional thermal components result in higher costs. Multiple cooling loops lead to reduced range due to increased weight. Energy is required to meet thermal requirements. This presentation for the 2013 AnnualMerit Review discusses integrated vehicle thermal management by combining fluid loops in electric drive vehicles.
Download or read book Development and Modeling of Novel Battery Thermal Management Systems for Electric and Hybrid Electric Vehicles written by Maan Al-Zareer and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermal management system is necessary to control the operating temperature of the lithium ion batteries in battery packs for electrical and hybrid electrical vehicles. This thesis studies, develops and models novel battery thermal management systems for the battery packs in hybrid electric vehicles and electric vehicles. The systems' thermal performances are assessed through thermal and electrochemical models. The performances of the proposed systems are investigated in terms of various performance measures including the maximum temperature in the pack and the temperature distribution throughout the battery pack and through each battery. The results show that pool based systems achieve better performance for cylindrical battery packs than for prismatic battery packs. For a pool system, covering 30% of the battery height reduces the maximum battery temperature by 28% to 40% depending on the fuel type for a high intensity cycle. To achieve 28% to 40% reduction in the prismatic battery maximum temperature from the case where there is no cooling, the pool system has to cover 80% of the battery height. The best performing system for prismatic battery packs is the tube based system, where the aluminum cold plate has tubes completely filled with coolant to maintain the battery temperature within range needed for the best performance possible by the system. The tube cold plate based system maintains 80% less coolant in the battery pack at a time than the direct contact pool based system while achieving a higher performance in terms of the maximum battery temperature and the maximum temperature difference across the battery pack. The response time for the proposed systems reached nearly 10 times faster than liquid and air systems proposed in the literature. Compared with the literature the pool based system response was 1.7% of the cycle time compared to around 17% for the cycle time for the mini channel cold plate cooling system.
Download or read book Battery Thermal Characterization written by Aron Saxon and published by . This book was released on 2019 with total page 1 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Battery Thermal Management System for Electric Vehicles Design Optimization and Control written by Yuanzhi Liu and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We are witnessing a fast-growing demand in vehicle electrification nowadays due to the widespread environmental consciousness, stringent emission regulations, and carbon neutrality implementation. As one of the most promising energy storage and electrification solutions, lithium-ion battery has been widely employed for electric vehicles (EVs) due to its excellent properties like high energy density, low maintenance, and long cycle life. However, there still exist multiple critical challenges in using lithium-ion battery at large scale as the major power source, such as reliability issues, safety concerns, and especially the range anxiety. Several promising solutions have been explored in the EV industry to mitigate the drawback of range anxiety, such as larger capacity with high energy density and ultra-fast charging. All these approaches challenge the temperature sensitive battery system as a side effect by bringing in extra overburdened waste heat. Given these concerns, battery thermal management system (BTMS) plays an indispensable role in maintaining the maximum temperature and temperature uniformity for EVs. This dissertation proposes a novel J-type air-based cooling structure via re-designing conventional U- and Z- type structures. Aiming to further improve the thermal performance, a surrogate-based optimization framework with two-stage cluster-based resampling is developed for BTMS structural optimization. Compared with the U- and Z- type, the novel J-type structure is proved with significant advancements. Based on the optimized J-type configuration, an operation mode switching module is designed to mitigate the temperature unbalance by controlling the opening degree of two outlet valves. Tested by an integrated driving cycle, results reveal that the J-type structure with its appropriate control strategy is a promising solution for light-duty EVs using an air cooling technology. Improving the energy efficiency is another potential approach to mitigate range anxiety. In this dissertation, a model predictive control (MPC)-based energy management strategy is developed to simultaneously control the BTMS, the air conditioning system, and the regenerative power. A vehicle velocity forecasting framework is integrated with the MPC-based energy management to further improve the energy efficiency. Deep learning and image-based traffic light detection techniques have been leveraged for velocity forecasting. Results show that the proposed energy management method has significantly improved the overall EV energy efficiency.
Download or read book A multifactorial analysis of thermal management concepts for high voltage battery systems written by Joshua Smith and published by Cuvillier Verlag. This book was released on 2023-06-23 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research presents a method for efficiently and reproducibly comparing diverse battery thermal management concepts in an early stage of development to assist in battery system design. The basis of this method is a hardware-based thermal simulation model of a prismatic Lithium-Ion battery, called the Smart Battery Cell (SBC). By eliminating the active chemistry, enhanced reproducibility of the experimental boundary conditions and increased efficiency of the experimental trials are realized. Additionally, safety risks associated with Lithium-Ion cells are eliminated, making the use of the SBC possible with thermal management systems in an early state of developed and without costly safety infrastructure. The integration of thermocouples leaves the thermal contact surface undisturbed, allowing the SBC to be integrated into diverse thermal management systems.
Download or read book Development of Evaporative Cooling Battery Thermal Management System for Electric Vehicles written by Ahmad Hilmi bin Khalid and published by . This book was released on 2014 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Battery pack needs to generate a high output within a very short time to meet the power demand of an electric vehicle when it is in acceleration. High discharge current causes significant warming of the Li-ion cells due to internal resistance within the cells. LiFePO4 batteries, however, can be used efficiently only within an operating temperature in the range of 20oC to 40oC. The life span and lifecycle of the battery will reduced significantly if the temperature goes above the recommended range. The rationale of this study is to develop an innovative evaporative cooling battery thermal management system (EC-BThMS) to control the battery temperature in the range of 20oC to 40oC. The simplified mathematical equations have been developed in this study for the kinematics analysis and simulation to investigate the temperature profile of the battery based on discharge current drawn, total heat generation and total heat dissipation from the battery. The performance investigation of the EC-BThMS has been conducted both theoretically and experimentally during discharging mode. Theoretically, it was found that the battery temperature varies from 26.5oCto 31oCfor discharge current in the range of 40 A to 100 A. Experimentally, testing results in IIUM campus road found that the battery temperature varies from 28oC to 34oC for discharge current in the range of 35 A to 120 A. While testing results in Sepang International Circuit (SIC) showed that the battery temperature was in the range of 26oC to 35oCfor discharge current in the range of 60 A to 80 A. The performance of developed EC-BThMS in SIC has also been compared with two types of air cooling battery thermal management systems (AC-BThMS) used in others Proton Saga EV. It was found that the Proton Saga EV with EC-BThMS can save 17.69% more energy than with AC-BThM 1 and 23% than with AC-BThMS 2. The correlations between the measured and predicted values of temperature profiles of the battery during operation have been found to be 97.3%. This is indicates that the predicted data over the measured data have a closed agreement and thus, substantially verified the mathematical model.
Download or read book Tools for designing thermal management of batteries in electric drive vehicles written by Ahmad Pesaran and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Battery Thermal Management written by Battery Thermal Management Committee and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document surveys the systems used for thermal management of batteries in vehicles. Battery thermal management is important for battery performance and cycle life. The document also includes a summary of design considerations for battery thermal management and a glossary of terms. This Information Report is a survey of various types of systems used in automotive and commercial vehicles for the thermal management of batteries.
Download or read book Electric Vehicle Battery Thermal Issues and Thermal Management Techniques Presentation written by and published by . This book was released on 2013 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This presentation examines the issues concerning thermal management in electric drive vehicles and management techniques for improving the life of a Li-ion battery in an EDV.
Download or read book Numerical Analysis of Unsteady Heat Transfer for Thermal Management written by and published by . This book was released on 2012 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal Management of Batteries in Advanced Vehicles Using Phase Change Materials Presentation written by and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Powerpoint presentation examines battery thermal management using PCM and concludes excellent performance in limiting peak temperatures at short period extensive battery use; although, vehicle designers will need to weigh the potential increase in mass and cost associated with adding PCM against the anticipated benefits.
Download or read book Thermal Management of a Battery Pack for Electric Vehicles written by Khalid Ziat and published by . This book was released on 2021 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this thesis is to study the thermal behavior of a Li-ion battery for different charge and discharge currents to apply a passive cooling system using phase change materials (PCM) and to verify its efficiency when used with a module of several batteries. Our study is based on an experimental and a numerical study. A test bench is implemented to charge and discharge the batteries at constant current. A Li-ion battery with a capacity of 60 Ah and a prismatic shape was tested for charge currents ranging between 40A and 60A and discharge currents varying from 40A to 100A. The experimental study carried out on the battery shows that the temperature measured on the positive electrode best represents the temperature of the battery core. Moreover, the measurements of the temperatures and the heat dissipation allowed the determination of the heat transfer coefficient as well as the entropic heat coefficient which were introduced in the proposed numerical model. The numerical study led to the development of two models. A 3D model that allows the determination of the temperature at any point of the battery has been proposed by solving the three-dimensional heat equation using the ADI method. Indeed, the model was used to propose two correlations allowing the prediction of the maximum temperature increase as well as the heat energy generated by the battery for given charge and discharge currents. In addition, the second model is based on the equivalent thermal networks which simplifies the physical problem. The developed models have been validated by comparison with experimental results. Finally, a new Chroma 17020 test bench was installed to experimentally test a module of several batteries tested under dynamic currents determined from normalized driving cycles. The experimental results were compared to the results predicted by the proposed model. Cooling solutions using a microencapsulated INERTEK 32 phase change material are also studied. A method for calculating the mass of PCM to ensure the dissipation of the heat generated by the batteries during operating time is proposed using the developed correlations.
Download or read book Tools for Designing Thermal Management of Batteries in Electric Drive Vehicles written by Ahmad Pesaran and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
