Investigation of Pool Boiling Heat Transfer on Modified Copper and Aluminum Surfaces

Mariam Khaled Galal, Fadi Alnaimat, Bobby Mathew, Zafar Said

Research output: Chapter in Book / Conference PaperConference Paperpeer-review

Abstract

This paper investigates pool-boiling heat transfer using surface modification, examining smooth and rough pin-finned surfaces on copper and aluminum. The study visualizes bubble formation and departure diameter, aiming to predict heat transfer coefficients (HTC) under different heat fluxes (HF). Four surfaces were tested: smooth copper, pin-fin copper, smooth aluminum, and rough pin-finned aluminum. Results reveal differences in bubble characteristics and formation/departure times between smooth and rough surfaces. For example, on smooth copper, bubble diameter sizes (low, medium, and CHF) were 0.2803 cm, 0.437 cm, and 0.67 cm, with corresponding formation and departure times of 0.2859 s, 0.305 s, and 0.4025 s. Pin-finned copper surfaces exhibited larger diameters (0.745 cm, 1.38 cm, 1.95 cm) and shorter times (0.184 s, 0.207 s, 0.417 s). Smooth aluminum surface had diameters (0.63 cm, 0.96 cm, 1.27 cm) and times (0.27s, 0.36s, 0.40s), while pin-finned aluminum showed sizes (0.24 cm, 0.30 cm, 0.83 cm) and times (0.11 s, 0.13 s, 0.21 s). The study concludes that rough pin-finned copper enhances boiling HTC and HF at lower wall superheat temperatures compared to the smooth surface. Keywords: Pool boiling, heat transfer, bubble dynamics, critical heat flux.

Original languageEnglish
Title of host publicationProceedings of the ICSDI 2024 - Proceedings of the 2nd International Conference on Sustainability
Subtitle of host publicationDevelopments and Innovations
EditorsYasser Mansour, Umashankar Subramaniam, Zahiraniza Mustaffa, Abdelhakim Abdelhadi, Mohamed Ezzat, Eman Abowardah
PublisherSpringer Science and Business Media Deutschland GmbH
Pages33-40
Number of pages8
ISBN (Print)9789819787111
DOIs
Publication statusPublished - 2025
Externally publishedYes
Event2nd International Conference on Sustainability: Developments and Innovations, ICSDI 2024 - Riyadh, Saudi Arabia
Duration: 18 Feb 202422 Feb 2024

Publication series

NameLecture Notes in Civil Engineering
Volume556 LNCE
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference2nd International Conference on Sustainability: Developments and Innovations, ICSDI 2024
Country/TerritorySaudi Arabia
CityRiyadh
Period18/02/2422/02/24

Bibliographical note

Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd. 2025.

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