Numerical Study on Influence of Wall Thermal Effect on Thermal Impact of Gas Explosion
Round 1
Reviewer 1 Report
The manuscript is mainly about influence of wall thermal effect on thermal impact of gas explosion. This topic is very interesting and innovative, some valuable results are found in this manuscript, which have an important practical significance for improving the theory of wall thermal effect and improving the level of gas explosion prevention in confined space. However, the manuscript needs medium revision before acceptance for publication.
1. Some sections of the manuscript are not written in an easy way for reading, so they need be expressed in a better way.
2. English grammar and spellings need to be improved.
3. How to consider the influence of thermal capacity on thermal impact?
4. Gas explosion is a chemical reaction with very rapid reaction, and a large number of intermediate and instantaneous products are produced in the process of explosion. How to deal with it in numerical simulation?
Author Response
Dear reviewers,
Thank you very much to point out the English written issues and for your valuable comments and suggestions. We have revised the manuscript accordingly, and the detailed corrections are listed below point by point:
Reviewer #1: The manuscript is mainly about influence of wall thermal effect on thermal impact of gas explosion. This topic is very interesting and innovative, some valuable results are found in this manuscript, which have an important practical significance for improving the theory of wall thermal effect and improving the level of gas explosion prevention in confined space. However, the manuscript needs medium revision before acceptance for publication.
Q 1. Some sections of the manuscript are not written in an easy way for reading, so they need be expressed in a better way.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 2. English grammar and spellings need to be improved.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 3. How to consider the influence of thermal capacity on thermal impact?
Response: Thank you very much for your valuable and thoughtful comments. Thermal capacity is also a factor affecting thermal shock of gas explosion, which is related to the thickness of the pipe. However, due to the small thickness (0.2m) of the gas explosion pipe, the thermal capacity is not considered.
Q 4. Gas explosion is a chemical reaction with very rapid reaction, and a large number of intermediate and instantaneous products are produced in the process of explosion. How to deal with it in numerical simulation?
Response: Thank you very much for your valuable and thoughtful comments. The detailed process in the chemical reaction is ignored. Only one step reaction of gas explosion is considered. Namely, in reaction, CH4+O2=CO2+H2O is only considered. Intermediates and instantaneous products are not considered.
　　The manuscript has been resubmitted to your journal. We look forward to your positive response.
　　Thank you very much!
　　Please contact me by E-mail: [email protected], if there are any questions.
Yours Sincerely
Zhenzhen Jia, Qing Ye
April, 15, 2023.
Author Response File: 
Author Response.docx
Reviewer 2 Report
In this manuscript, the authors studied the influence of wall thermal effect on thermal impact of gas explosion. This topic is interesting and worth of studying, the results of manuscript are also impressive because the corresponding researches are seriously lacking at the present. However, the manuscript needs medium revision before acceptance for publication. Some comments are as follows:
1. There are some syntax and format errors.
2. The format of table description is inappropriate and should be unified.
3. The variable and constant t,v etc should be italicized.
4. Whether the mesh division in Figure.1 needs to be densified？
5. What is the influence of gas explosion intensity or gas filling volume on wall thermal loss?
Author Response
Dear reviewers,
Thank you very much to point out the English written issues and for your valuable comments and suggestions. We have revised the manuscript accordingly, and the detailed corrections are listed below point by point:
Reviewer #2: In this manuscript, the authors studied the influence of wall thermal effect on thermal impact of gas explosion. This topic is interesting and worth of studying, the results of manuscript are also impressive because the corresponding researches are seriously lacking at the present. However, the manuscript needs medium revision before acceptance for publication. Some comments are as follows:
Q 1. There are some syntax and format errors.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 2. The format of table description is inappropriate and should be unified.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 3. The variable and constant t,v etc should be italicized.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 4. Whether the mesh division in Figure.1 needs to be densified？
Response: Thank you very much for your valuable and thoughtful comments. Numerical simulation verification is found that the unit length of 0.05m can meet the mesh independence and no densification is required.
Q 5. What is the influence of gas explosion intensity or gas filling volume on wall thermal loss?
Response: Thank you very much for your valuable and thoughtful comments. The larger the gas explosion intensity is, the more heat is released, and the more heat is dissipated through the pipe wall. The larger the gas filling amount is, the larger the gas explosion intensity is and the longer the explosion duration is.
　　The manuscript has been resubmitted to your journal. We look forward to your positive response.
　　Thank you very much!
　　Please contact me by E-mail: [email protected], if there are any questions.
Yours Sincerely
Guo Xu, Zhenzhen Jia, Qing Ye
April,15, 2023.
Author Response File: Author Response.docx
Reviewer 3 Report
The authors presented an interesting numerical study on the influence of wall thermal effect on thermal impact of gas explosion.
There are some aspects of the article that need to be improved as described below.
1. Introduction: The sound of sustainability in this paper is not enough. To keep this article in the scope of the journal, authors should clearly state the sustainability contributions of their research paper. The research gap (in the sense of sustainability) should obviously be stated in the article, both theoretical gap and theoretical necessity. How the influence of wall thermal effect on thermal impact of gas explosion effect to the sustainability?
(HINT: The scope of journal can be found in https://www.mdpi.com/journal/sustainability/about and the extension of sustainability to the SDGs is also found at https://www.undp.org/sustainable-development-goals )
2. Literature review: As a result of journal name and scope, your article needs to be improved the sense of sustainability. This could be done by adding review and discussion related to “sustainability”. I recommended more than 10 references in sustainability related topics need to be addressed. However, superficial citations are not acceptable. Authors have to clearly state the impact or relevance of sustainability issues with the proposed topic.
3. Discussion: This article does not have an active "discussion section” to show the theoretical contributions of this research to the scientific literature. The comparisons must include confirmatory findings (similarity of each findings) or counterintuitive findings (dissimilarity) to the results of published articles. Authors should argue how their research stands among other published papers within the body of knowledge. The active discussion section needs to be organized into subsections according to the research questions. If possible, one specific research question should be referred to each subsection. Readers will be convinced that the article’s objectives were totally fulfilled if the research findings clearly answer research questions.
Author Response
Dear reviewers,
Thank you very much to point out the English written issues and for your valuable comments and suggestions. We have revised the manuscript accordingly, and the detailed corrections are listed below point by point:
Reviewer #3: The authors presented an interesting numerical study on the influence of wall thermal effect on thermal impact of gas explosion. There are some aspects of the article that need to be improved as described below.
Q 1. Introduction: The sound of sustainability in this paper is not enough. To keep this article in the scope of the journal, authors should clearly state the sustainability contributions of their research paper. The research gap (in the sense of sustainability) should obviously be stated in the article, both theoretical gap and theoretical necessity. How the influence of wall thermal effect on thermal impact of gas explosion effect to the sustainability? (HINT: The scope of journal can be found in https://www.mdpi.com/journal/sustainability/about and the extension of sustainability to the SDGs is also found at https://www.undp.org/sustainable-development-goals )
Response: Thank you very much for your valuable and thoughtful comments. Coal is widely used as a raw material for various industries. The exploitation and utilization of coal resources promotes economic development. To achieve sustainable production of coal, it is necessary to effectively prevent and control related mining disasters. Gas explosion is a serious disaster in the production process of coal mines. There are many factors that affect gas explosion disasters, and the wall thermal effect is one of the factors that affect the impact damage of explosion. There is relatively little research on wall thermal effect, so corresponding research has been conducted this time. This manuscript is submitted in a special issue "Mining Risk and Safety Management". The submission website is as follows:
https://www.mdpi.com/journal/sustainability/special_issues/702037UI24
Special Issue "Mining Risk and Safety Management" -Special Issue Information
Dear Colleagues,
Mining industry plays an important role in the global growth. It has provided basic materials for the development of many manufacturing companies in different areas. For example, Coal as a traditional energy has been recovered and used for nearly two hundred years. Now, it still makes great contribution in developing countries, such as China. However, up to date, shallow coal resources have been largely reduced because of long-time mining activities. Therefore, the mining operations are moving to deeper and deeper reservoirs. In deep (coal) mines, the reservoir’s characteristics of high stress, high pore pressure, and extremely low permeability are the primarily key factors that could cause mining hazards and disasters. In the history of mining, thousands of lives have been killed and it is still an issue to eliminate all danger and secure workers’ health.
The purpose of this Special Issue is to prevent the occurrence of the mining risks and manage the safety environment in underground space. We need both new technologies and manage methods for mining safety improvement to be implemented in mining space. The main focus will be on original and unpublished research and review articles in areas including, but not limited to, the following:
(1) Mechanism of complex dynamic hazards in deep mines;
(2) Technologies introduced to lower geological stress and pore pressure;
(3) Coalbed methane or coal mine gas extraction;
(4) Numerical modelling of multiscale Multiphysics interactions of mining process;
(5) Utilization of low-concentration methane from coal mine gas extraction;
(6) Research and review on safety manage in mining industry.
We look forward to receiving your contributions.
Deadline for manuscript submissions: 15 July 2023 | Viewed by 1450.
Q 2. Literature review: As a result of journal name and scope, your article needs to be improved the sense of sustainability. This could be done by adding review and discussion related to “sustainability”. I recommended more than 10 references in sustainability related topics need to be addressed. However, superficial citations are not acceptable. Authors have to clearly state the impact or relevance of sustainability issues with the proposed topic.
Response: Thank you very much for your valuable and thoughtful comments. This manuscript is submitted in a special issue "Mining Risk and Safety Management".
Q 3. Discussion: This article does not have an active "discussion section” to show the theoretical contributions of this research to the scientific literature. The comparisons must include confirmatory findings (similarity of each findings) or counterintuitive findings (dissimilarity) to the results of published articles. Authors should argue how their research stands among other published papers within the body of knowledge. The active discussion section needs to be organized into subsections according to the research questions. If possible, one specific research question should be referred to each subsection. Readers will be convinced that the article’s objectives were totally fulfilled if the research findings clearly answer research questions.
Response: Thank you for your careful reading of our manuscript. The simple discussion is in each section.
　　The manuscript has been resubmitted to your journal. We look forward to your positive response.
　　Thank you very much!
　　Please contact me by E-mail: [email protected], if there are any questions.
Yours Sincerely
Guo Xu, Zhenzhen Jia, Qing Ye
April,15, 2023.
Author Response File: Author Response.docx
Reviewer 4 Report
The authors conducted a simulation study on the influence of the wall thermal effect on the gas explosion. The effective parameters such as stress distribution, thermal conductivity, displacement, and shock wave velocity were investigated systematically. There are some comments to enhance the quality of the paper:
1- The description font inside of Fig. 1 is not in English, so it should be revised.
2- It is helpful to add more information about two conditions in the caption of Fig. 3. Moreover, information about images on the left and right sides should be added to be more understandable.
3- What is the main purpose of adding the element number in Figures 4-6 (e.g., Fig. 4(a) for element A number 998)? If only the element part (e.g., A, B, C, etc) is representative of the measuring point, the element number can be deleted from the figures.
4- It is useful to add a brief summary of the practical conclusion (suggestion of parameters to be considered) to prevent a gas explosion. It can be added at the end of the results and discussion or conclusion.
Author Response
Dear reviewers,
Thank you very much to point out the English written issues and for your valuable comments and suggestions. We have revised the manuscript accordingly, and the detailed corrections are listed below point by point:
Reviewer #4: The authors conducted a simulation study on the influence of the wall thermal effect on the gas explosion. The effective parameters such as stress distribution, thermal conductivity, displacement, and shock wave velocity were investigated systematically. There are some comments to enhance the quality of the paper.
Q 1. The description font inside of Fig. 1 is not in English, so it should be revised.
Response: Thank you for your careful reading of our manuscript. They were revised.
Q 2. It is helpful to add more information about two conditions in the caption of Fig. 3. Moreover, information about images on the left and right sides should be added to be more understandable.
Response: Thank you for your careful reading of our manuscript. They were added.
Q 3. What is the main purpose of adding the element number in Figures 4-6 (e.g., Fig. 4(a) for element A number 998)? If only the element part (e.g., A, B, C, etc) is representative of the measuring point, the element number can be deleted from the figures.
Response: Thank you for your careful reading of our manuscript. The number is representative of unit location.
Q 4. It is useful to add a brief summary of the practical conclusion (suggestion of parameters to be considered) to prevent a gas explosion. It can be added at the end of the results and discussion or conclusion.
Response: Thank you for your careful reading of our manuscript. They were revised.
　　The manuscript has been resubmitted to your journal. We look forward to your positive response.
　　Thank you very much!
　　Please contact me by E-mail: [email protected], if there are any questions.
Yours Sincerely
Guo Xu, Zhenzhen Jia, Qing Ye
April,17, 2023.
Author Response File: Author Response.docx
Round 2
Reviewer 3 Report
The authors were not answer any comments.
Therefore, I cannot accept this paper until all issues were resolved.
1) Could you please just put a little sentence to link your contribution to the "sustainability"? Is it more difficult than trying to explain that your paper was under the scope of special issue of the journal name "SUSTAINABILITY"?
2) I need more explanation for the "discussion", not only the easy sentence that the discussion is in each section. Could you please convince me to believe that your discussions were exist? Where are them? Which are their line numbers?
In conclusion, your answers is unacceptable.
Author Response
Dear reviewer,
Reviewer #3: The authors were not answer any comments. Therefore, I cannot accept this paper until all issues were resolved.
Q 1. Introduction: The sound of sustainability in this paper is not enough. To keep this article in the scope of the journal, authors should clearly state the sustainability contributions of their research paper. The research gap (in the sense of sustainability) should obviously be stated in the article, both theoretical gap and theoretical necessity. How the influence of wall thermal effect on thermal impact of gas explosion effect to the sustainability? (HINT: The scope of journal can be found in https://www.mdpi.com/journal/sustainability/about and the extension of sustainability to the SDGs is also found at https://www.undp.org/sustainable-development-goals )
Q.1 second: 1) Could you please just put a little sentence to link your contribution to the "sustainability"? Is it more difficult than trying to explain that your paper was under the scope of special issue of the journal name "SUSTAINABILITY"?
Response: This manuscript is submitted in a special issue "Mining Risk and Safety Management". This manuscript is in the scope of the journal. The reviewer is not familiar with this special issue and we can understand him. But he is still entangled in this question, and I no longer accept his unreasonable requirement.
Q 2. Literature review: As a result of journal name and scope, your article needs to be improved the sense of sustainability. This could be done by adding review and discussion related to “sustainability”. I recommended more than 10 references in sustainability related topics need to be addressed. However, superficial citations are not acceptable. Authors have to clearly state the impact or relevance of sustainability issues with the proposed topic.
Response: This manuscript is submitted in a special issue "Mining Risk and Safety Management". I hope the reviewer is familiar with the special issue "Mining Risk and Safety Management" before making comments.
Q 3. Discussion: This article does not have an active "discussion section” to show the theoretical contributions of this research to the scientific literature. The comparisons must include confirmatory findings (similarity of each findings) or counterintuitive findings (dissimilarity) to the results of published articles. Authors should argue how their research stands among other published papers within the body of knowledge. The active discussion section needs to be organized into subsections according to the research questions. If possible, one specific research question should be referred to each subsection. Readers will be convinced that the article’s objectives were totally fulfilled if the research findings clearly answer research questions.
Q3. second:：2) I need more explanation for the "discussion", not only the easy sentence that the discussion is in each section. Could you please convince me to believe that your discussions were exist? Where are them? Which are their line numbers?
Response: In scientific papers, result analysis and discussion are often put together; the title is Result Analysis and Discussion. The relevant discussion is already in the Result Analysis and Discussion. Not every journal's paper is written according to the reviewer's format. So, I no longer accept the unreasonable requirement of this reviewer and will not make any further modifications.
　　The manuscript has been resubmitted to your journal. We look forward to your positive response.
　　Thank you very much!
　　Please contact me by E-mail: [email protected], if there are any questions.
Yours Sincerely
Guo Xu, Zhenzhen Jia, Qing Ye
April, 21, 2023.
Author Response File: Author Response.docx
Round 3
Reviewer 3 Report
I cannot give much more comments.
In my humble opinion, your paper is very interesting and it can be improved.
