ABSTRACT
ABSTRACT: Due to the rising demand for cheap and economical electric energy, balanced by requests for its resource-saving production, natural draft cooling towers have grown to enormous heights. Simultaneously, their shells developed to the largest existing reinforced concrete shell structures. Compared to shell roofs or shell tanks, cooling tower shells are exposed on both faces to the plant environment, generally aggressive media due to fossil fuel. Additionally in German power stations, aggressiveness in the cooling towers' interiors is slightly increased by release of cleaned flue gases therein, saving a smoke stack as gas dissipation device.
