| Download | - View accepted manuscript: Natural convection heat transfer within multi-layer domes (PDF, 863 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1016/S0017-9310(00)00195-2 |
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| Author | Search for: Laouadi, A.1; Search for: Atif, M. R.1 |
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| Affiliation | - National Research Council of Canada. NRC Institute for Research in Construction
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| Format | Text, Article |
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| Abstract | Domes have become increasingly popular in modern building designs. Glazed domes are used to bring daylight and solar heat into the indoor space. For domes with multiple spaced layers of glazings, there is little information available on natural convection heat transfer within these layers. This information is required for the evaluation of the dome thermal performance (e.g., the U-factor). This paper presents a numerical study on heat transfer by laminar natural convection within multi-layer domes with uniform spacing heated from the outside. The flow and temperature fields within the domed enclosure were obtained using the control volume approach combined with the fully implicit scheme. Correlations for the heat transfer as a function of the dome shape and the gap spacing between the layers were developed under steady state conditions. The results showed that the convection heat transfer for fully hemispheric domes (half of spheres) may reach more than 13% higher than that for low profile domes (hemispherical caps) for small gap spacings (gap spacing-to-radius ratio. The critical gap spacing that yields the maximum heat transfer was quantified for each dome shape. |
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| Publication date | 2001-05-01 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NRC number | NRCC 43954
NRC-IRC-9860 |
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| NPARC number | 20331286 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 3b1bbeb2-84a5-40de-8db0-7b1ca1a842b2 |
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| Record created | 2012-07-18 |
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| Record modified | 2020-03-27 |
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