Kamil, M. Gh. Mohammed and Kassim, M. S. and Mahmood, R. A. and Mahdi, L. AZ (2022) Modeling of Heat Transfer and Steam Condensation Inside a Horizontal Flattened Tube. Fluid Dynamics & Materials Processing, 18 (4). pp. 1-14. ISSN 1555-256X
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Text (Published Version)
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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.
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| Item Type: | Article (Commonwealth Reporting Category C) |
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| Refereed: | Yes |
| Item Status: | Live Archive |
| Faculty/School / Institute/Centre: | Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -) |
| Faculty/School / Institute/Centre: | Current – Faculty of Health, Engineering and Sciences - School of Engineering (1 Jan 2022 -) |
| Date Deposited: | 21 Apr 2022 05:35 |
| Last Modified: | 21 Apr 2022 05:35 |
| Uncontrolled Keywords: | Condensation; flow pattern structure; heat transfer rate; flow in horizontal pipe; flow behaviour; EES modelling |
| Fields of Research (2020): | 40 ENGINEERING > 4017 Mechanical engineering > 401706 Numerical modelling and mechanical characterisation |
| Identification Number or DOI: | doi:10.32604/fdmp.2022.018938 |
| URI: | http://eprints.usq.edu.au/id/eprint/47836 |
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