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Licensed Unlicensed Requires Authentication Published by De Gruyter July 11, 2022

Effect of engraved concentric circles on pool boiling of water

Saurabh Singh , Manoj Kumar and Anil Kumar Patil ORCID logo EMAIL logo
From the journal Kerntechnik


Pool boiling takes place when a stagnant liquid is placed on a surface above the saturation temperature of the liquid. Thermal studies have attracted a large number of researchers working in different segments of the industry to meet the heating and cooling demands of each individual. The pool boiling is a highly effective technique of convective heat transfer to maintain the system operation under safe temperature and safe temperature limits for better performance and longevity. This study investigates the effect of engraved concentric circles on aluminium disc in de-ionized water. The experiments are conducted by varying pitch ratio (P) and indentation ratio (I) of engraved concentric circles in the range of 0.0125–0.05, and 0.002–0.008, respectively. The maximum enhancement in the boiling heat transfer coefficient is found to be 21.11% more than that of a plain surface corresponding to the pitch ratio of 0.0125 and indentation ratio of 0.008.

Corresponding author: Anil Kumar Patil, Department of Mechanical Engineering, DIT University, Dehradun 248009, Uttarakhand, India, E-mail:

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: None declared.

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.


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Received: 2022-04-20
Published Online: 2022-07-11
Published in Print: 2022-10-26

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