A Holistic Approach to Improve a Liquid Cooled Battery Module

Nöller, Marcel; Renz, Robert; Eisele, Martin; Bause, Katharina

doi:10.23919/aeitautomotive50086.2020.9307379

Cited by 1 publication

(6 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One module for this particular use case is investigated in [1] and in this paper. The module assembly is depicted in Fig.…”

Section: Motivationmentioning

confidence: 99%

“…Choosing the cell mount for deeper consideration and optimization by extensive simulations was not an arbitrary choice. As laid out by Nöller et al in [1] extensive research went into choosing the components with the greatest impact on the system's overall weight. To understand the groundwork for this publication, a very brief summary of this previous research is given in the following paragraph.…”

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

“…While the benefits of optimizing the cell mount height from a thermal standpoint using a pareto-optimal solution for different use cases of the battery module were explored before [1], another concern was rising pressure losses due to the height reduction. As predicted by the empirical Darcy-Weisbach-equation, decreasing the cell mount height by half of its initial value almost quadruples the pressure losses in the cooling channels (the change in hydraulic diameter can be neglected in comparison for the given geometry).…”

Section: Efficient Parameter Optimizationmentioning

confidence: 99%

“…The system analysis task using the ETWA method and the results are discussed in more detail in [1]. The three main function groups with high effort (Fig.…”

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

“…• Battery cell cooling • Sealing against the environment and sealing against coolant leakage • System mounting and protection against external forces/moments As the cell mount is the main contributor to the first function group while also being one of the heaviest parts itself, focusing on it extensively was the most reasonable choice. The other subsystems responsible for the function groups two and three are evaluated in detail in [1] and therefore not presented in this particular research.…”

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

See 4 more Smart Citations

Holistic System Design and Efficient Optimization of a Liquid Cooled Battery Module Through 1D- and 3D-Simulations

2021

Self Cite

View full text Add to dashboard Cite

This publication extends on a holistic system design approach by implementing an efficient simulation methodology to design a robust cooling system for a liquid cooled battery module. After gaining insight into the functionality of the system and its components, the most promising parts for redesign were selected using a method called Extended Target Weighing Approach (ETWA). Because of this redesign, the cell mount was reduced in height and the cooling system topology parallelized to lower pressure losses. The design of the new cooling system geometry is explored. The parameter optimization is carried out with a simplified 1D fluid dynamics model. To verify and validate the 1D-simulation, a more detailed 3D-simulation is used at bespoke crucial times during development. The main boundary conditions were keeping the pressure losses at or below its reference level from the module's predecessor, while designing a robust system in terms of flow rate distribution in the parallel channels. The result was a system behaving almost indifferent to changes in temperature or total flow rate with the channels individually changing less than 5% of total flow rate and all channels staying in the range between 20% to 32% of total flow rate at all times. The overall system pressure drop could be brought down to half of its reference value. The two simulations were achieving similar results, eventually deviating less than 5% relative to each other in simulated flow rates and pressure losses.

show abstract

“…One module for this particular use case is investigated in [1] and in this paper. The module assembly is depicted in Fig.…”

Section: Motivationmentioning

confidence: 99%

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

Section: Efficient Parameter Optimizationmentioning

confidence: 99%

“…The system analysis task using the ETWA method and the results are discussed in more detail in [1]. The three main function groups with high effort (Fig.…”

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

Section: System Analysis and Functional Lightweight Designmentioning

confidence: 99%

See 3 more Smart Citations