A Numerical Investigation on the Optimization of Uneven Flow in a Marine De-SOx Scrubber
Round 1
Reviewer 1 Report
The manuscript entitled " A numerical investigation on the optimization of 2 uneven flow in a marine De-SOx scrubber”, submitted to processes, may be accepted due to the following reasons.
The study is to optimize the uneven flow in a marine De-SOx scrubber. An effective three-dimensional simulation model of the scrubber was established and the evaporation and flow characteristics of the droplets inside the scrubber were simulated.
The paper is reasonably complete. The abstract reflects the main point of the paper correctly and adequately. The literature is reasonably reviewed, and there is not any inaccurate statement, equation, figure or typing errors in the manuscript. Therefore it is recommended that the article is accepted.
Author Response
Response to Reviewer 1 Comments
Dear Reviewer,
Thank you very much for your comments. The manuscript is entitled as follows: “A numerical investigation on the optimization of uneven flow in a marine De-SOx scrubber” (Manuscript ID: processes-869963). We also wish to take this opportunity to thank the reviewers for their constructive comments and valuable recommendations. We have carefully revised the manuscript according to your suggestion.
Thank you very much for the excellent and professional revision of our manuscript.
Yours sincerely,
Hao Guo
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The paper focuses on an interesting topic. The review of actual state of art has been correcntly adressed. The matematical model, provided in Section 2, is clear and well presented, as well as the numerical application performed in Section 3. The English usage is good and only some minor corrections and text editing need to be carried out. The paper can be certainly accepted for publication, at least in the Reviewer's opinion.
Author Response
Response to Reviewer 2 Comments
Dear Reviewer,
Thank you very much for your comments. The manuscript is entitled as follows: “A numerical investigation on the optimization of uneven flow in a marine De-SOx scrubber” (Manuscript ID: processes-869963). We also wish to take this opportunity to thank the reviewers for their constructive comments and valuable recommendations. We have carefully revised the manuscript according to your suggestion about the minor corrections and text editing.
Thank you very much for the excellent and professional revision of our manuscript.
Yours sincerely,
Hao Guo
Author Response File: Author Response.pdf
Reviewer 3 Report
The manuscript is about a numerical investigation on the optimization of uneven flow in marine De-SOx scrubber. The scope of this article is consistent with the requirements of the Journal Processes, but it requires minor revision in accordance with the comments below:
- There is no graphical abstract proposed. Although it is not a mandatory for the journal, it is advisable to include a graphical abstract.
- Not all symbols from equations (1) - (7) have been described in the text.
- Please unify the pressure units. In most cases it is Pa, whereas once there is bar.
- In table 1, the peak combustion pressure unit is Mpa and should be MPa.
Author Response
Response to Reviewer 3 Comments
Dear Reviewer,
Thank you very much for your comments. The manuscript is entitled as follows: “Effect of Pre-Combustion Chamber Nozzle Parameters on the Performance of a Marine 2-stroke Dual Fuel Engine” (Manuscript ID: processes-646970). We also wish to take this opportunity to thank the reviewers for their constructive comments and valuable recommendations. We have carefully revised the manuscript according to reviewers’ suggestion.
Our responses to the comments are listed below:
Point 1: There is no graphical abstract proposed. Although it is not a mandatory for the journal, it is advisable to include a graphical abstract.
Response 1: We have added a graphical abstract. The main modifications are as follows:
Point 2: Not all symbols from equations (1) - (7) have been described in the text.
Response 2: The main modifications are as follows:
where Sm denotes the source term of discrete phase acting on continuous phase. In momentum equation (2), p is the static pressure; indicates the stress tensor; ρ is density; is the gravity force; represents the external force; In energy equation (3), keff refers to the actual heat transfer coefficient considering the effect of turbulence; is called as the diffusion flux; Sh refers to the heat including chemical reaction.
Ideal gas law is，
|
(4) |
where T represents the gas temperature; m is the mass; V denotes the gas volume; R is the gas constant.
The standard k-ε turbulence model is used in the De-SOx scrubber model. The k equation and ε equation are：
|
|
(5) |
|
(6) |
where Gk is the turbulent flow energy due to the average velocity gradient; Gb is the term of turbulent kinetic energy due to buoyancy; ρ is density; YM represents the contribution of pulsating expansion in compressible turbulence; μt represents the turbulent viscosity; C1ε, C2ε, C3ε, Cμ are constants.
Point 3: Please unify the pressure units. In most cases it is Pa, whereas once there is bar. In table 1, the peak combustion pressure unit is Mpa and should be MPa.
Response 3: Yes, we have changed the pressure unit.
Thank you very much for the excellent and professional revision of our manuscript.
Yours sincerely,
Hao Guo
Author Response File: Author Response.pdf
