An Implicit Formulation for Calculating Final Conditions in Drainage Maneuvers in Pressurized Water Installations
, Dalia M. Bonilla-Correa 2, Aldo Lovo 3, Vicente S. Fuertes-Miquel 4, Gustavo Gatica 5, Rodrigo Linfati 6 and Jairo R. Coronado-Hernández 7
Round 1
Reviewer 1 Report (Previous Reviewer 2)
Nil
Author Response
This reviewer made some comments in a previous review, which were all addressed.
Reviewer 2 Report (New Reviewer)
Please see the attached file.
Comments for author File: 
Comments.pdf
Author Response
Please see enclosed file.
Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report (New Reviewer)
The Authors addressed my concerns with special attention. I really appreciated the new subsection on the validation of the theoretical approach. The paper can be accepted in present form. Residual typos can be tackled at the proofreading stage.
This manuscript is a resubmission of an earlier submission. The following is a list of the peer review reports and author responses from that submission.
Round 1
Reviewer 1 Report
The paper aims to model the Emptying processes in a pressurized system.The presented model is a standard one and it is analyzed with typical procedure of system analysis.
In my opinion this is not a scientific paper but its level is comparable to a master degree thesis. It is not suitable for publication in a scientific journal since it is not novel at all.
Reviewer 2 Report
Comment: The water pipeline can have a number of pipes in the branched form or looped. How can we apply the present approach to address such problems?
Comment: Equations 1 and 2 are the velocity of flow and acceleration. The same can be indicated in the paper.
Comment: Conclusion: “In this research was developed an implicit equation (see Equation 11) to compute” – change it as “In this research, an implicit equation (see Equation 11) was developed to compute”
Comment: What could be the emptying time? Is it not an important decision parameter expected by Engineers?
Comment: What does it make oscillation flow at the end of emptying the pipe? Any specific observation from the analysis? This aspect may be discussed in the results and discussion section. How other authors have presented this aspect?
Comment: The following two papers can be considered in the literature review as it is related to emptying the water distribution network pipeline.
Suribabu C.R. (2009) “Location and Sizing of Scour Valves in Water Distribution Network” ISH Journal of Hydraulic Engineering,15(2), 118-130.
Suribabu C.R. (2020) Optimal locations and sizing of scour valves in water distribution networks, Journal of Pipeline Systems and Engineering, ASCE, 11(1): 04019056:1-9.
