Surface Modification Utilizing Photolithography Process for Pool Boiling Enhancement: An Experimental Study

2021 ◽  
pp. 1-16
Author(s):  
Hesam Moghadasi ◽  
Hamidreza Fathalizadeh ◽  
Ali Mehdikhani ◽  
Hamid Saffari
Keyword(s):  
Experimental Study ◽  
Surface Modification ◽  
Pool Boiling ◽  
Boiling Enhancement ◽  
Photolithography Process

Pool Boiling CHF Enhancement on a Zircaloy-4 Surface With Micro/Nano Scale Modification

2009 ◽  
Author(s):  
Ho Seon Ahn ◽  
Chan Lee ◽  
Hyungdae Kim ◽  
Hang Jin Jo ◽  
Soon Ho Kang ◽  
...  
Keyword(s):  
Experimental Study ◽  
Heat Flux ◽  
Surface Modification ◽  
Surface Treatment ◽  
Nuclear Power ◽  
Power Plants ◽  
Pool Boiling ◽  
Heating Surface ◽  
Thermal Systems ◽  
Multi Scale

The need to operate thermal systems, including those in nuclear power plants, below the critical heat flux (CHF) requires inconvenient compromises between economy and safety. This has led to much research aimed at enhancing the CHF. CHF enhancement was recently noticed in nanofluids where the heating surface was fouled by nanoparticles. We attempted to imitate the micro/nano multi-scale structure of nanoparticle fouling by surface modification. In this study, surface treatment was used to change the surface wettability of a Zircaloy-4 heater. A pool boiling apparatus was developed based on the results of the surface treatment, and an experimental study was performed to investigate the increase in CHF.

Experimental Study on Structured Surfaces for Nucleate Pool Boiling Enhancement

2017 ◽  
Author(s):  
Vishal V. Nirgude ◽  
Mayank Modak ◽  
Avadhesh K. Sharma ◽  
Santosh K. Sahu
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Atmospheric Pressure ◽  
Boiling Heat Transfer ◽  
Heat Transfer Performance ◽  
Pool Boiling ◽  
Transfer Performance ◽  
Structured Surfaces ◽  
Wall Superheat ◽  
Boiling Enhancement

In the present experimental study an attempt has been made to study the boiling heat transfer characteristics of variety of enhanced surfaces. Three different copper test surfaces: polished copper and two structured surfaces were used in the present investigation. The heat transfer performance of each surface is studied under saturated pool boiling conditions at atmospheric pressure by using water and isopropyl as pool liquid. The effect of intersecting tunnel geometry with 0.5 mm and 1 mm depth on heat transfer performance has been studied. The comparison of heat transfer coefficient indicates that the intersecting tunnel structure enhanced the boiling heat transfer performance and reduced the wall superheat at given heat flux inputs.

Experimental study of pool boiling enhancement for surface structuring with inclined intersected mesochannels using WEDM method on copper surfaces

2019 ◽  
Vol 139 (3) ◽  
pp. 1849-1861 ◽  
Author(s):  
Hamid Saffari ◽  
Hamidreza Fathalizadeh ◽  
Hesam Moghadasi ◽  
Shahab Alipour ◽  
Seyed Mostafa Hosseinalipour
Keyword(s):  
Experimental Study ◽  
Pool Boiling ◽  
Copper Surfaces ◽  
Surface Structuring ◽  
Boiling Enhancement

Nanoscale Surface Modification Techniques for Pool Boiling Enhancement: A Critical Review and Future Directions

2010 ◽  
Author(s):  
Yen-Wen Lu ◽  
Satish G. Kandlikar
Keyword(s):  
Surface Modification ◽  
Critical Review ◽  
Pool Boiling ◽  
Future Research ◽  
Design Consideration ◽  
Future Directions ◽  
Nanoscale Structures ◽  
Boiling Enhancement ◽  
Surface Modification Techniques ◽  
Theoretical Developments

New discoveries presented in the last decade for enhancing boiling performance utilizing nanoscale structures on surfaces are critically examined in this paper. Since the mechanism for such a phenomenon is not fully understood, this review mainly focuses on the implementation of nanostructures on these surfaces as well as on the interpretation of underlying phenomena for changing the boiling performance. Design consideration and theoretical developments are also discussed followed by practical aspects of nanostructure manufacturing. The issues related to performance, ease of fabrication and durability (whenever available) are reviewed and recommendations are made for future research in this emerging area.

ALUMINUM FOAMS FOR WATER POOL BOILING ENHANCEMENT

2018 ◽  
Author(s):  
Luca Doretti ◽  
Hossein Sadafi ◽  
Giulia Righetti ◽  
Kamel Hooman ◽  
Giovanni Antonio Longo ◽  
...  
Keyword(s):  
Pool Boiling ◽  
Water Pool ◽  
Aluminum Foams ◽  
Boiling Enhancement
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