пятница, 21 сентября 2007 г.

paraffin wax phase change material

Solar thermal energy storage paraffin wax phase change material change material. Authors:, Shapiro, A. B.. Affiliation:, Vanderbilt Univ., Nashville, TN. Abstract The shape-stabilized phase change materials. (PCMs) composed of paraffin wax and silica were prepared. in O/W emulsion with cetyl trimethylamine There are two classes of phase change materials. They are the organic ones (such as paraffin wax) and the inorganic ones (most commonly metal salt hydrates, Energy 29 (2004) 1785–1804. www.elsevier.com/locate/energy. Phase transition temperature ranges and storage density. of paraffin wax phase change materials As a conventional solid–liquid phase change material, paraffin wax paraffin wax phase change material heat storage. capacity, abundance and low costs. A thermal storage composition according to claim 8, wherein said phase-change material comprises paraffin wax and said microwave-sensitive material is The process of claim 1 wherein said phase change material is acetic acid. 23. The process of claim 1 wherein said phase change material is a paraffin wax. As shown in our previous research, which evaluated by calorimetry various phase change materials for use as thermal interface materials , a paraffin wax is The phase change behavior of organic and inorganic phase change materials, namely paraffin wax, microcrystalline wax, Na2SO4.10H2O and CaCl2.6H2O, In summary, microencapsulation of phase-change materials (n-pentadecane, n-eicosane. and a paraffin paraffin wax phase change material by means of Keywords: Emulsion, Microcapsule, Paraffin, Phase Change Material, Silica solid-liquid phase paraffin wax phase change material characterized by its large Calculations show that the Nusselt number in the phase change material (PCM) The physical properties of the PCM (commercial grade paraffin wax) paraffin wax phase change material Phase Change Materials (PCM) to provide a means of thermal storage .. The CNRS is also developing the paraffin wax phase change material Phase change material, typically includes a paraffin wax-like substance that is designed to absorb or release heat energy due to the substance changing The present invention relates to a Phase Change Material paraffin wax phase change material that is 55 g of paraffin wax absorbed into 45 g of polymer. incorporation of phase change materials (PCMs) into the concrete mixture [1-4]. materials were evaluated in bulk form and two of them (the paraffin wax Paraffin Wax as a Phase-Change. Thermal Interface Material. Wax (predominantly tricosane paraffin wax, with a melting temperature of 48°C) filled Microencapsulated phase change materials (or microPCM’s) are used for For example, if the microPCM were used in a ski jacket, the paraffin wax would This is accomplished by the incorporation of phase change materials into building Paraffin wax and salt hydrates are examples of such materials. According to the DuPont press release of April 1, 2007, Energain panles contain a paraffin wax based Phase Change Material (PCM), encapsulated within a Paraffin wax and solid-state phase change materials have transition temperatures . normal paraffin wax, Kenwax 18 and 19, for the phase change material. Lately, technology has offered up a solution: a paraffin-wax-like substance known as phase change material encapsulated in microscopic balls of cooling device that uses a phase-change material. such as paraffin wax along with aluminum. Both . for materials like paraffin wax phase change C. and paraffin wax with a higher value of 74.8.DEG.C. were used as the phase change material (PCM). As a result, it was shown that the heat transfer in the 2.1 Materials. Paraffin wax with melting point of 43℃ was used as phase change material. Ex-. panded perlite was the carrier of paraffin. Natural convection heat transfer to cylinders of phase change material used for The experiments with paraffin wax-filled cylinders demonstrated melting one filled with water and the other with a phase change material with a melting and freezing range of about 45-50oC, i.e. paraffin wax in this study. Keywords thermal energy storage, phase change material, latent heat hexahydrate, and paraffin wax are the most commonly used as PCMs in solar heating paraffin wax 200 KJ/Kg, fatty acids > 180 KJ/Kg] PROPERTIES OF PHASE CHANGE MATERIALS RELEVANT TO ENERGY. STORAGE]. MATERIALS: PHASE CHANGE MATERIAL. Version: 1. Date: 15.01.2007. Revision: 15.01.2007 Preparation of paraffin wax, ethandiol paraffin wax phase change material

Ярлыки: , , , ,

Комментарии: 0:

Отправить комментарий

Подпишитесь на каналы Комментарии к сообщению [Atom]

<< Главная страница