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Applied Sciences
Volume 12
Issue 17
10.3390/app12178666
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Article
Peer-Review Record

Experimental Study on the Heat Transfer Performance of Various Magnet Arrangements in a Closed Space Filled with Ferrofluid

Appl. Sci. 2022, 12(17), 8666; https://doi.org/10.3390/app12178666
by Hyun-Su Kang 1, Yun-Seok Choi 1, Hyeon-Seok Seo 2,* and Youn-Jea Kim 3,*
Reviewer 1: Anonymous
Reviewer 2: Anonymous
Appl. Sci. 2022, 12(17), 8666; https://doi.org/10.3390/app12178666
Submission received: 4 August 2022 / Revised: 22 August 2022 / Accepted: 25 August 2022 / Published: 29 August 2022
(This article belongs to the Special Issue NANO KOREA 2022 in Applied Sciences)

Round 1

Reviewer 1 Report

The authors evaluate the heat transfer performance of a ferrofluid.  They support their theoretical calculations by experiments.  The paper is interesting and may be useful to scientists working on heat removal from electronic circuits or machines.  I do not see anything in the paper that needs revision, so the paper could be published as is.  Still, I would like the authors to critically check their text again for clarity.  Sometimes, the text is difficult to comprehend.  For example, on lines 358 to 360, the authors say 'the results of the NPR method were obtained that the test results and NN 359 were better than that of this test'.  Does this mean the  experimental values obtained (the test results?) were in better agreement with the results predicted by model NN359 ?  There are a few other places in the text where the clarity could be improved. 

Author Response

Dear reviewer1

Thanks for your great comment. 

The answer sheet is attached

Thank you

Author Response File: Author Response.docx

Reviewer 2 Report

The authors presented experimental and numerical studies of the heat transfer performance of various magnet arrangements in a closed space filled with ferrofluid.

The properties of the nanoparticles are to be presented.

What is the type of the used surfactant?

Have you checked the stability of the suspension?

Have you measured the properties of the nanofluid?

An experimental uncertainty study is to be performed.

The temporal variations of the temperature are to be presented.

Have you measured the temperature of the nanofluid ? or only the glass?

The computational domain with the applied boundary conditions are to be presented in a figure.

A validation/verification of the numerical model is to be performed.

How is the total heat flux evaluated?

The boundary conditions are to be expressed mathematically.

More experimental and numerical results are to be presented.

Physical interpretations are to be added to the discussion

The English level is relatively low.

Author Response

Dear reviewer 2

Thanks for your great comment.

An answer sheet is attached.

Thank you

Author Response File: Author Response.docx

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