Modeling of Heat Transfer and Steam Condensation Inside a Horizontal Flattened Tube
Article
Article Title | Modeling of Heat Transfer and Steam Condensation Inside a Horizontal Flattened Tube |
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Article Category | Article |
Authors | Kamil, M. Gh. Mohammed (Author), Kassim, M. S. (Author), Mahmood, R. A. (Author) and Mahdi, L. AZ (Author) |
Journal Title | Fluid Dynamics & Materials Processing |
Journal Citation | 18 (4), pp. 1-14 |
Number of Pages | 14 |
Year | 2022 |
Publisher | Tech Science Press |
Place of Publication | United States |
ISSN | 1555-256X |
1555-2578 | |
Digital Object Identifier (DOI) | https://doi.org/10.32604/fdmp.2022.018938 |
Web Address (URL) | https://www.techscience.com/fdmp/v18n4/47298 |
Abstract | This work investigates the steam condensation phenomena in an air-cooled condenser. The considered horizontal flattened tube has a 30 mm hydraulic diameter, and its length is a function of the steam quality with a limit value between 0.95 and 0.05. The mass flow rate ranges from 4 to 40 kg/m2.s with a saturated temperature spanning an interval from 40°C to 80°C. A special approach has been implemented using the Engineering Equation Solver (EES) to solve a series of equations for the two-phase flow pattern and the related heat transfer coefficients. A wavy-stratified structure of the two-phase flow has been found when the mass rate was between 4 and 24 kg/m2.s. In contrast, an initially annular flow is gradually converted into a wavy stratified flow (due to the condensation process taking place inside the flattened tube) when the considered range ranges from 32 to 40 kg/m2.s. |
Keywords | Condensation; flow pattern structure; heat transfer rate; flow in horizontal pipe; flow behaviour; EES modelling |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401706. Numerical modelling and mechanical characterisation |
Institution of Origin | University of Southern Queensland |
Byline Affiliations | Mustansiriyah University, Iraq |
School of Mechanical and Electrical Engineering | |
University of Technology, Iraq |
https://research.usq.edu.au/item/q7359/modeling-of-heat-transfer-and-steam-condensation-inside-a-horizontal-flattened-tube
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Modeling of Heat Transfer and Steam Condensation Inside a Horizontal Flattened Tube.pdf | ||
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