Reusing Plastic Bottles in Energy- and Construction

摘要

This paper investigates the use of irresolvable and permanent garbage in environment to build an energy saving wall in cold and hot climatic conditions. The wall is mainly constructed from plastic bottles which provide lightness. The bottles, filled with water to store solar energy, are confined between two walls and able to provide wall stability. Transparent twin wall polycarbonate sheets have been selected as the external surface in order to let the bottles receive solar energy. The inner layer is opaque and fire resistant. A tarpaulin with a reflective inner face is used to prevent heat loss during cold and heat conditions. As the empirical results of the built sample (45 * 65 cm) indicate, in cold season, the wall stores the solar energy during the day and transfers the heat indoors (by conduction) at nights, when the tarpaulin covers the exterior. In hot season, the tarpaulin protects the wall from sunlight during the day. At night the wall transfers the heat outdoors in the absence of the tarpaulin. A comparison of the alternative wall with similar kinds of contemporary construction walls addresses it considerably light.