Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.
Awad, M., Mostafa, H., Sultan, G., Elbooz, A., El-Ghonemy, A. (2020). Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.. EKB Journal Management System, 31(1), 15-24. doi: 10.21608/bfemu.2020.129417
Mohamed Mahmoud Mostafa Awad; Hesham Mostafa; Gamal Ebrahim Sultan; A. Elbooz; A. El-Ghonemy. "Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.". EKB Journal Management System, 31, 1, 2020, 15-24. doi: 10.21608/bfemu.2020.129417
Awad, M., Mostafa, H., Sultan, G., Elbooz, A., El-Ghonemy, A. (2020). 'Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.', EKB Journal Management System, 31(1), pp. 15-24. doi: 10.21608/bfemu.2020.129417
Awad, M., Mostafa, H., Sultan, G., Elbooz, A., El-Ghonemy, A. Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.. EKB Journal Management System, 2020; 31(1): 15-24. doi: 10.21608/bfemu.2020.129417

Enhancing Air Side Heat Transfer Coefficient of Flat Tube Air Cooled Condensers.

MEJ- Mansoura Engineering Journal
Article 19, Volume 31, Issue 1, March 2006, Page 15-24  XML PDF (571.6 K)
Document Type: Research Studies
DOI: 10.21608/bfemu.2020.129417
View on SCiNiTO View on SCiNiTO
Authors
Mohamed Mahmoud Mostafa Awad1; Hesham Mostafa email 2; Gamal Ebrahim Sultan3; A. Elbooz4; A. El-Ghonemy5
1Faculty of Engineering Mansoura University., Mansoura., Egypt
2Mechanical Eng. Dept., Higher Technological Institute, Tenth of Ramadan City, Egypt.
3Department of Mechanical Power Engineering, Mansoura University, Mansoura, Egypt
4Faculty of Engineering Mansoura University., Mansoura., Egypt.
5Higher Technological Institute, Tenth of Ramadan City, Egypt
Abstract
Forced convection heat transfer for air side over aluminum extruded micro-channel fat tubes, which used in air cooled condensers, was studied theoretically. Mathematical modeling of air flow outside the aluminum flat tubes were carried out to study the proposed inclination angles and evaluate the thermal performance for different operating parameters. A computational fluid dynamic software (CFD) is used to solve this problem. Two proposed cases for inclination of the flat tubes are studied. The first case is to make convergent and divergent channels for air Now, while the second case is tilting of all tubes in parallel to each other. Inclination for the flat tubes by a certain angle improves the convection side and in turn improves the overall thermal performance of the air cooled condenser. The theoretical results show that the optimum angle for the proposed two cases was about 4° with corresponding aspect ratio of 0.58. This leads to enhancement the heat transfer coefficient by factor (Kh) of 1.469 and 1.46 against increase in pressure drop factor (KP) of 2.12 and 1.95 for case-land cusc-2, respectively. 
Keywords
CFD; Flattened tube heat exchanger - air cooled condenser
Statistics
Article View: 107
PDF Download: 159