Battery Hybrid Energy Storage Systems for Full-Electric Marine Applications

Round 1

Reviewer 1 Report

Abstract: The texts on the Abstract is not well written. The Authors need to revise and represent the abstract and ensure the major component viz. concise problem statement, novelty, aim and objectives, results, as well as possible applications are carefully presented.

Key words are too much

 

Introduction

Improve the grammatical construction and ensure that the introductory aspect of the manuscript using state of arts from the articles in the links:     DOI: 10.1016/j.ecmx.2022.100304;    DOI: 10.2478/rtuect-2022-0048;    DOI: 10.1002/ese3.1144

Lines 35-26: Improve the content, “It is also considered a big contributor to air pollution by emitting a significant amount of nitrogen oxides (NOx), sulfur oxides (SOx), and particulate matter (PM) [2, 3]”

Lines 33-34: Effect corrections on the grammatical sentences, “. How ever, there are significant challenges with full-electric applications requiring large battery systems, particularly the high cost of the batteries at the system level.”  Improve its state of arts by citing articles therein:    DOI: 10.1016/j.ijthermalsci.2020.106738

Lines 86-94: There is absence of explicit spelt out novelty and motivation towards the study. The Authors need to showcase this

Line 135: Revise, “Figure 3. (a) Baseline battery system topology, (b) Parallel full-active HESS topology.”

Lines 141-142: The Authors need to redraw and reformat Table 1. Battery and DC/DC specifications with respect to the guidelines of the Journal.

Line 147: Insert reference article on, “The degradation of the Li-ion batteries is characterized by cycle aging and calendar aging. The article in the link     DOI: 10.1016/j.ijthermalsci.2020.106738

Line 112: Remove italic from Figure 2

Lines 167-169: Revise, “Then, the constant parameters are obtained using the least square fitting method using MATLAB. Figure 4 illustrates the fitted curves and 168 the values taken from Ref. [26].”

Lines 223-231: Revise texts, “…A rule-based energy management method is employed for power sharing between…………………….. primary and secondary profiles.”

Line 232: Revise and unbold title of Figure 1 in the snapshot

Line 239: Inconsistent in the numbering of Figure needs to be addressed. For instance, Figure 6 needs to be revised.

Results and discussion part need to be revised, especially  texts under “1. Battery cost analysis”

 

Lines 242-249: Revise, “his section presents the battery sizing and cost analysis results. Figure 7(a) and 7(b)…………………………. �???,2 and ????,4 for the power thresholds of ????,?? ≤ 25 kW and ????,?? ≥ 25 kW, 252 respectively”

 

Line 254: Revise the wrongly titled, “Figure 7. Energy to be installed to meet the design criteria, (a) HE battery (b) HP battery.”

Lines 253-254:      (a)  and   (b) need to be appended on the Figure not outside

 

 

 

Line 262:  Revise, “Figure 8. Cost of the monotype battery system and HESS at different values of ????,??.”

 

Lines 263-268: Revise, “Figure 9 illustrates the optimal cost of the HESS as well as the cost of monotype

…… HP system and around 14% lower cost compared to the monotype HE battery.”

 

Lines 271-277: Revise, Figure 10 shows the optimal power sharing between the HE and HP battery packs ….

ypes are 998 kWh and 103 kWh, respectively.”

Lines 277-278: (a)  and   (b) need to be appended on the Figure not outside

 

 

 

Lines 279-280: Revise Figure 10.

Change, “Figure 10. Optimal power sharing between HE and HP battery pack for parallel full-active HESS 279 topology, (a) Primary profile, (b) Secondary profile.”   TO    “Figure 10. Optimal power sharing between HE and HP battery pack for parallel full-active HESS 279 topology: (a) Primary profile, (b) secondary profile.”  

 

Lines 323-325: There are inconsistence in the front and space in the texts, and others on the manuscript “As can be seen in Figure 12, …. lower than the HP monotype.

 

 

 

 

Lines 239-340: Revise the texts under conclusion  “In this work, the impact of battery hybridization on cost, efficiency and weight of the…………. In this work, the impact of battery hybridization on cost, efficiency and weight of the”

References should be properly written in acco

Comments for author File: Comments.pdf

Author Response

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Author Response File: Author Response.pdf

Reviewer 2 Report

(1)The objectives are not clearly stated. What will happen to the battery hybrid energy storage system for full-electric marine applications and which encouraged the authors to carry out this investigation?

(2)Results and discussion very poor, there is no justification for the findings.

(3)It's very hard to read the manuscript (pls, avoid long, complex sentences), and English grammatically style and word use should be checked carefully.

(4)Results of the present research had not been compared with previous researches (other group).

(5)Findings are not so important because of the lack of explanation of impact of this study on the field.

Author Response

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Author Response File: Author Response.pdf

Round 2

Reviewer 1 Report

 

The Abstract needs a minor revision

 

Lines 37-39: The texts, “However, there are significant challenges with full-electric applications requir-37 ing large battery systems, such as the high cost of the batteries at the system level, safety 38 concerns, and battery thermal management [8].” Need to be revised

Table 1 is not well formatted and the pattern used by the Authors is not ok. The Table needs to be reformatted from the that in the snasphot to that drawn below

Parameters		Values
DC/DC cost		85  kW

 

 

Improve the conclusion parts

Enhance the state of arts of your manuscript. The following manuscript can be cited:     DOI: 10.1016/j.ijthermalsci.2020.106738;     DOI: 10.1016/j.fuel.2022.126377;    DOI: 10.1002/ese3.1125

 

 

Lines 298-299: Replace, “,” with “:”  in  BY changing“Figure 10. Optimal power split between HE and HP battery packs in HESS, (a) Primary profile, (b) profile, (b)Secondary profile.”   TO   ““Figure 10. Optimal power split between HE and HP battery packs in HESS: (a) Primary profile, (b) profile, (b)Secondary profile.”

 

Lines 216-217: The format of table  2 is not suitable and need to redrawn:

 

Lines 320-321 and others : The front of letter used in equation does not conform with the those of previous equation and the texts

 

 

Wrong format used in labelling (13)

 

 

The Authors adopted diverse fronts in labelling x and y axes of  graphs such as  Figures 11 12,etcs

Comments for author File: Comments.docx

Author Response

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Author Response File: Author Response.docx