Liquid Nanofilms’ Condensation Inside a Heat Exchanger by Mixed Convection
Round 1
Reviewer 1 Report
This works numerically investigates the effect of dispersing Cu/Al nanoparticles on the film condensation falling inside a vertical two-parallel heat exchanger under mixt convection. Even if the study is interesting and may have several potential applications, the manuscript contains too many mistakes as to be published in the present form. In my humble opinion, I suggest a deep revision of the work and resubmission.
1) Check multiple mistakes (format/style, grammar, spelling, etc.). Pay notice that even the title is not well-written (It should be “exchanger” and not “ehancer”. Also revise “Keyword 1”, the style/format of references, etc.
2) Background is too short, authors should briefly revise previous similar investigations and better highlight the interest of present study. Last paragraph should contain a few sentences indicating followed approach.
3) Numerical modelling (section 2) should be described in deeper detail and supported by appropriate literature references. Do not merely list used equations. It is necessary to explain how initial conditions were selected/defined. A nomenclature section/table would be of great help for the reader.
4) In section 3, authors wrongly mention Table 1 (it should be Table 2). Table 1 is not even presented in the manuscript. In Table 1, authors should include (a) reference(s) to the source of gathered information.
5) Results and discussion should be the core of the article. But it only contains about 40 lines. Authors should provide further physical interpretation of obtained results. More literature comparison is also necessary.
6) Units are presented in mixed ways (with and without “slash”). Revise subscripts/superscripts. Allow a space between reported values and units. Do not use “Kg” but “kg” when referring to kilograms.
Author Response
Thank you very match for your pertinent comments. In the following, we presented in the attached file our commentaries and modifications made in order to improve the present paper.
Author Response File: 
Author Response.pdf
Reviewer 2 Report
The paper is well-written and could be accepted in its current form.
Author Response
Thank you very match for your accepting the review of this paper
Reviewer 3 Report
Title: Nanofluid Film Condensation by Mixed Convection Inside a 2 Vertical Heat Ehanger
Authors have investigated model related heat exchanger and mass diffusion in the presence of nanoparticle and thin film flow. I am suggesting quarries mentioned below
1. What is mean by ehanger. Define term regarding ehanger?
2. Revised your article by correcting grammatically and spelling mistakes.
3. What is specification of and in present model?
4. I suggested you adding physical applications in abstract section.
5. Geometries should be revised adding all conditions.
6. Define all terms of equations 1 to 4. Further, all general equations should be cited.
7. Also define vector forms of equations 1 to 4.
8. Define derivation of boundary conditions. Also cited it.
9. Flow chart of numerical approach should be added.
10. Nomenclature with SI units should be added.
11. Validation of problem should be mentioned.
12. Introduction should be revised adding flowing studies.
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Author Response
Thank you very match for your pertinent comments. In the following, we presented our commentaries and modifications made in order to improve the present paper.
Author Response File: Author Response.pdf
Round 2
Reviewer 1 Report
Authors have sufficiently improved their manuscript, I have no additional comments.
Reviewer 3 Report
Authors have respond well of all my questions. So, i accepted it in present form.
