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Machine translation
1. (WO1980001073) METHOD FOR FORMING AQUEOUS HEAT-STORAGE COMPOSITIONS HAVING PROLONGED HEAT-STORAGE EFFICIENCIES
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1980/001073    International Application No.:    PCT/US1979/000489
Publication Date: 29.05.1980 International Filing Date: 13.07.1979
IPC:
C09K 5/06 (2006.01), F24J 2/34 (2006.01)
Applicants:
Inventors:
Priority Data:
961161 16.11.1978 US
Title (EN) METHOD FOR FORMING AQUEOUS HEAT-STORAGE COMPOSITIONS HAVING PROLONGED HEAT-STORAGE EFFICIENCIES
(FR) PROCEDE DE PREPARATION DE COMPOSITIONS AQUEUSES D"EMMAGASINAGE DE CHALEUR AYANT DES EFFETS PROLONGES D"EMMAGASINAGE DE LA CHALEUR
Abstract: front page image
(EN)Method for forming aqueous heat-storage compositions useful in space heating applications herein the compositions contain fumed silicon dioxide and a phase-change material which absorbs and stores heat as it is heated above its phase-change temperature and releases stored heat as it is cooled below its phase-change temperature. This method comprises adding the fumed silicon dioxide to water at an elevated temperature under high shear mixing conditions to form a dispersion followed by addition of the phase-change material. Suitable articles for containing these compositions comprise thin cells (16, 18) within a core volume (14) provided within hollow slabs (12) and separated by water vapor-impermeable membrane (20).
(FR)Dans un procede de preparation de compositions aqueuses d"emmagasinage de chaleur utiles dans des applications de chauffage, les compositions contiennent du bioxyde de silicium fume et un materiau de changement de phase qui absorbe et emmagasine la chaleur au fur et a mesure qu"il est chauffe au dessus de sa temperature de changement d"etat et degage de la chaleur emmagasinee au fur et a mesure qu"il est refroidi en dessous de sa temperature de changement d"etat. Cette methode comprend l"addition de bioxyde de silicium fume dans de l"eau a une temperature elevee sous forte agitation pour former une dispersion suivie de l"addition du materiau de changement d"etat. Des objets appropries pour contenir ces compositions comprennent des cellules fines (16, 18) dans un volume central (14) amenage dans des tranches creuses (12) et separees par une membrane impermeable a la vapeur d"eau (20).
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)