Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Investigation of Pool Boiling Heat Transfer on Modified Copper and Aluminum Surfaces
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.
Investigation of Pool Boiling Heat Transfer on Modified Copper and Aluminum Surfaces
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.
Investigation of Pool Boiling Heat Transfer on Modified Copper and Aluminum Surfaces
Lecture Notes in Civil Engineering
Mansour, Yasser (Herausgeber:in) / Subramaniam, Umashankar (Herausgeber:in) / Mustaffa, Zahiraniza (Herausgeber:in) / Abdelhadi, Abdelhakim (Herausgeber:in) / Ezzat, Mohamed (Herausgeber:in) / Abowardah, Eman (Herausgeber:in) / Galal, Mariam Khaled (Autor:in) / Alnaimat, Fadi (Autor:in) / Mathew, Bobby (Autor:in) / Said, Zafar (Autor:in)
Proceedings of the International Conference on Sustainability: Developments and Innovations ; 2024 ; Riyadh, Saudi Arabia
17.11.2024
8 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Enhancement of Pool Boiling Heat Transfer Coefficients Using Carbon Nanotubes
| British Library Online Contents | 2007
EXPERIMENTAL ANALYSIS OF POOL BOILING HEAT TRANSFER USING STAINLESS STEEL
| BASE | 2025