| Téléchargement | - Voir la version finale : Fire and smoke control in transport tunnels (PDF, 706 Kio)
- Voir le manuscrit accepté : Fire and smoke control in transport tunnels (PDF, 1.2 Mio)
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| Auteur | Rechercher : Kashef, Ahmed1 |
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| Éditeur | Rechercher : Klote, John H. |
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| Affiliation | - Conseil national de recherches du Canada. Construction
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| Format | Texte, Chapitre de livre |
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| Sujet | road tunnels; bridges; fire; ventilation; tenability; numerical modeling; tests; standards |
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| Résumé | Reflective insulations are being used in attics, flat roof and wall systems. Numerical modelling and experimental investigations were conducted to assess the thermal performance of assemblies with reflective insulations. In this paper, the present model was used to verify the use of the ASTM C-518 test method for measuring the effective thermal resistances (R-values) of sample stacks comprising reflective insulations. Two tests were conducted on sample stacks using heat flow meter apparatus. The sample stack consists of two EPS layers and a reflective insulation installed in between. The model predictions agreed with measured heat fluxes within ±1%. The paper also discusses the combined effect of heat transfer by convection and radiation in the airspace facing the reflective insulation, showing that the derived R-value from the test data resulted in underestimation of the effective R-value of the sample stack. |
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| Date de publication | 2012-10-22 |
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| Dans | |
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| Langue | anglais |
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| Numéro du CNRC | NRC-CONST-55311 |
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| Numéro NPARC | 21242583 |
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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 | e5addb99-a2fd-4471-927d-6be236939e22 |
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| Enregistrement créé | 2013-02-18 |
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| Enregistrement modifié | 2020-06-03 |
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