| Téléchargement | - Voir le manuscrit accepté : Determination of the overall heat transmission coefficient (u-value) of vacuum glazing (PDF, 549 Kio)
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| Auteur | Rechercher : Simko, T. M.; Rechercher : Elmahdy, A. H.1; Rechercher : Collins, R. E. |
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| Affiliation | - Conseil national de recherches du Canada. Institut de recherche en construction du CNRC
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| Format | Texte, Article |
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| Conférence | ASHRAE Symposium: 01 June 1998, Toronto, Ontario |
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| Sujet | Performance thermique |
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| Résumé | The heat flow through a 1m x 1m sample of vacuum glazing has been measured in two independent ways. One measurement method uses a guarded hot box to make a direct determination of overall heat-transmission coefficient under standard test conditions. The other method uses a small-area guarded hot plate (specially designed for this purpose) to measure the local radiative and (negligible) gas conductance between the glass sheets. This instrument is also used to validate calculations of the heat flow through the support pillars. The overall heat flow is then obtained by combining the contributions from these processes with those due to heat flow through the conducting edge seal. The results obtained with the two methods are in very good agreement for the same external conditions. These results provide the first independent validation of estimates of heat flow through vacuum glazing based on the five separate processes that contribute to this heat transfer. |
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| Date de publication | 1999 |
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| Dans | |
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| Langue | anglais |
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| Publications évaluées par des pairs | Oui |
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| Numéro du CNRC | NRCC 41907
NRC-IRC-8118 |
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| Numéro NPARC | 20331437 |
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| Exporter la notice | Exporter en format RIS |
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| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
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| Identificateur de l’enregistrement | 109b672b-8052-4e45-ae14-47b122923905 |
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| Enregistrement créé | 2012-07-18 |
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| Enregistrement modifié | 2020-03-20 |
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