Yau, Yat Huang and Rajput, Umair Ahmed (2023) Performance evaluation of an architecturally-designed vertical high capacity linear slot diffuser in a tropical atrium. Architectural Science Review, 66 (1). pp. 53-69. ISSN 0003-8628, DOI https://doi.org/10.1080/00038628.2022.2140988.
Full text not available from this repository.Abstract
This paper proposed a new approach for the efficient air conditioning of large tropical buildings. The current study has two objectives: the design and numerical investigations of the performance of vertically oriented high capacity linear slot diffusers (HCLSD) in an atrium building and the verification and validation of the different turbulence models through laboratory-scale experiments. The HCLSD was investigated with varying angles of inclination of the blades (phi = 0(o) to 25(o)) for the in-depth performance analyses. The performance was evaluated by monitoring and comparing the velocity and temperature profiles along the vertical lines drawn at different locations in the studied domain. A relatively longer jet throw was noticed through quantitative analysis at phi = 0(o). Note that more than 33% increment in the face velocity was recorded at this angle. The corresponding terminal velocity of 0.225 m/s was observed at 8 m distance from the diffuser face. The detailed investigations at 0(o) deflector angle (case-1) were carried out for velocity, temperature field, and thermal comfort indices, i.e. PMV and PPD models. For the occupied zone, the thermal comfort indices were found within the acceptable ranges (i.e. PMV = + 0.1 to +0.9 and PPD = 4% to 20%).
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya (Grant No: RK005-2020), IIRG Grant (Grant No: IIRG014-2019A), Pakistan Government |
| Uncontrolled Keywords: | CFD simulation; Tropical atrium; Slot diffuser; Turbulence model; Deflector angle |
| Subjects: | N Fine Arts > NA Architecture T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 28 Nov 2023 08:56 |
| Last Modified: | 28 Nov 2023 08:56 |
| URI: | http://eprints.um.edu.my/id/eprint/39344 |
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