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Abstract
Abstract： To further study the effect of building gypsum added with doubleshell micronanocapsules with phase changing materials on heat and moisture transfer in porous walls, a model of the coupled heat and moisture in porous material with phase changing micronanocapsules was proposed. The thermal parameters of capsule interface were given by using pair potential and multibody potential of interface molecular dynamics, and by taking into account the feature of phase changing micronancapsules from the outside to the inside in phase transition. Meanwhile, the hydrophilic nature of outside shell and the effect of gypsum porporsit on the coupled heat and moisture by water adsorbed/desorbed were considered, and the moisture parameter model of capsule interface was proposed. And computer software was utilized to solve the equation of the added or nonadded material to deal with the simulation and measured data. The results show that the model can be used to simulate the heat and moisture transfer process in porous wall with phase change capsules.
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Received: 20 January 2015
Published: 29 January 2016
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