Development of a Temperature Management System for Battery Packs Using Phase Change Materials and Additive Manufacturing Options
Round 1
Reviewer 1 Report
1. The paper does not consider issues such as cost and weight associated with the use of phase change materials for passive thermal management of battery packs. Therefore, a limit on the amount of phase change materials used needs to be considered to ensure that the total cost and weight of the battery pack does not increase too much when using phase change materials.
2. The clarity of the images should be corrected, the text curves of the images in the version received by the reviewer are blurred to varying degrees
3. Some of the images contain other elements that should not be present in the images, such as Figure 4, etc.
4. The results and discussion sections of the article are weak and should be expanded in some amount.
The Quality of the English Language should be improved.
Author Response
Thank you for your comments! I was able to implement them in their entirety.
1.: I have included a weight definition for PCM
2,3.: as well as higher quality images.
4.: I was also able to expand the simulation part and the results and discussion sections accordingly.
The article went through another internal review. Text passages have been corrected and reformulated.
Reviewer 2 Report
The manuscript reports the design and simulation of a phase change material-based thermal management system for lithium-ion battery. The simulation is based on Computational fluid dynamics. The work could be interesting to the researchers working in the field of lithium-ion batteries, phase change materials and electric vehicles. However, the manuscript contains quite a number of mistakes and typos and misses some important contents related to the simulation. The manuscript needs significant revision and careful proofreading. It is unsuitable for publication in its current form.
List below are some comments and suggestions from the reviewer and the major problems appearing in the manuscript.
1. The introduction part was well written. However, providing a few sentences to introduce the existing representative thermal management methods and models will make it even better.
2. The full name of the abbreviation “BTMS” should be provided when it appears in the main text for the first time (- the first sentence in Section 2), though it is mentioned in the abstract.
3. Line 71, “A CFD model was created 71 and simulated to …”. The full name of “CFD” where it appears for the first time should be provided.
4. While it says that “Special attention should be paid to the phase change temperature, as it is the most important criterion in selecting a PCM for a particular application.”, it seems to be very necessary to have a table included in Section 2.1.1 to summarize the phase change temperatures of the popular phase change materials.
5. Typo: Lines 170-171, “The DMLS printing system consists of three different chambers as schematically 170 shown in Table 2.” It should be Figure 2 instead of Table 2.
6. Grammar mistake: Lines 189 through 191, “the number of influencing factors (e.g. 189 direction of the gas flow and the direction/movement of the recoater arm) that can have a significant impact on the buildability, the quality, and also the process costs of a part is 191 very high.” Please rephrase.
7. Lines 302-303, “Solve fluid flow equations over a defined range. I need to know the conditions 302 specified at the boundaries of this region.” Lines 311-312, “As a result, you can get an approximation of the value of each variable at a specific point over the range, giving you a complete picture of the flow behavior.” These sentences that use “I” or “you” need to be rephrased to make them fit to a scientific paper.
8. The model, equations and parameters (for example the environmental temperature, the discharge rate of the battery) used to simulate the temperature distributions shown in Figures 6 and 7 should be provided.
9. The terms “his CFD model” and “His PCM” appear a couple of times in the manuscript, but were not mentioned about what they mean or stand for.
The manuscript contains some grammar mistakes, typos and descriptions that are unsuitable for a scientific paper. Careful proofreading is needed.
Author Response
Thank you for your comments! I was able to implement them in their entirety. I was also able to expand the simulation part and the results and discussion sections accordingly. The article went through another internal review. Text passages have been corrected and reformulated.
- The introductory part has been expanded to include the basics of BTMS.
- Abbreviations are written out in the text when they are used for the first time.
- see point 2
- The most common phase change temperatures can now be seen in Fig. 5 and Table 1.
- Typos were corrected by internal proofreading.
- Grammar errors were corrected by an internal proofreader.
- Text passages have been corrected and reformulated.
- The simulation part 2.4 has been expanded extensively. Model description as well as equations and parameters were integrated.
- see points 5, 6 and 7
