Numerical study of heat transfer from a wall incorporating a phase change material
A numerical study of the thermal behavior of walls made up of construction materials used in Algeria and walls containing a phase change materials is presented. The model, based on the enthalpy formulation, is described by an equation of heat transfer. This equation is solved by an implicit method of finite differences and algorithm of Thomas. We analyzed the influence of the wall’s thickness and its composition on the evolution during the time of the temperature of the inside face of thewall.
As plant engineers scrutinize the energy requirements of their plants, they must eventually confront the costs associated with maintaining a comfortable working environment. These costs are especially high for buildings erected before energy became a high-priced commodity. The reduction of heating (or cooling) loads in a plant is naturally tied to improved control of heat flow in and out of the building. In any given building envelope, regulating the flow of heat can be achieved by providing barriers that retain heat. Insulation materials are designed to retain this heat in the building. The focus of this article is on the current state of the art in building insulation technology. Insulation materials and systems are described according to their application characteristics for reference and selection by the specifying plant engineer.