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Measurement of latent heat of tetra-n-butylammonium bromide (TBAB) hydrate / Tatsunori Asaoka in International journal of refrigeration, Vol. 36 N° 3 (Mai 2013) 

Public ISBD [article]  in International journal of refrigeration > Vol. 36 N° 3 (Mai 2013) . - pp. 992–997 Titre : Measurement of latent heat of tetra-n-butylammonium bromide (TBAB) hydrate Titre original : Mesure de la chaleur latente de l'hydrate du bromure de tétra-n-butylammonium Type de document : texte imprimé Auteurs : Tatsunori Asaoka, Auteur ; Hiroyuki Kumano, Auteur ; Maki Serita, Auteur Année de publication : 2013 Article en page(s) : pp. 992–997 Note générale : Refrigeration Langues : Anglais (eng) Mots-clés : Thermal  storage;  Latent  heat;  Hydrate;  Ice  slurry Résumé : Tetra-n-butylammonium bromide (TBAB) hydrate has favorable properties as a thermal storage material. For example, the phase change temperature, which is from 0 to 12 °C, is suitable for use in air conditioning, and the latent heat is relatively large. Thus, the thermophysical properties of TBAB hydrate, such as latent heat, are of considerable interest. In this study, a large size of pure TBAB hydrate crystal was formed and the latent heat of TBAB hydrate was measured by melting the crystal. The latent heat of TBAB hydrate type 1 was estimated to be 210 kJ kg−1, while that for type 2 hydrate was 224 kJ kg−1. These values agree with literature values estimated from the variation of specific enthalpy of TBAB hydrate slurry, but are 10% larger than the other literature values measured using DSC. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712003544 [article] Measurement of latent heat of tetra-n-butylammonium bromide (TBAB) hydrate = Mesure de la chaleur latente de l'hydrate du bromure de tétra-n-butylammonium [texte imprimé] / Tatsunori Asaoka, Auteur ; Hiroyuki Kumano, Auteur ; Maki Serita, Auteur . - 2013 . - pp. 992–997. Refrigeration Langues : Anglais (eng) in International journal of refrigeration > Vol. 36 N° 3 (Mai 2013) . - pp. 992–997 Mots-clés : Thermal  storage;  Latent  heat;  Hydrate;  Ice  slurry Résumé : Tetra-n-butylammonium bromide (TBAB) hydrate has favorable properties as a thermal storage material. For example, the phase change temperature, which is from 0 to 12 °C, is suitable for use in air conditioning, and the latent heat is relatively large. Thus, the thermophysical properties of TBAB hydrate, such as latent heat, are of considerable interest. In this study, a large size of pure TBAB hydrate crystal was formed and the latent heat of TBAB hydrate was measured by melting the crystal. The latent heat of TBAB hydrate type 1 was estimated to be 210 kJ kg−1, while that for type 2 hydrate was 224 kJ kg−1. These values agree with literature values estimated from the variation of specific enthalpy of TBAB hydrate slurry, but are 10% larger than the other literature values measured using DSC. En ligne : http://www.sciencedirect.com/science/article/pii/S0140700712003544