UNCONVENTIONAL TECHNOLOGIES FOR SAVING ENERGY AND REDUCING POLLUTION: CASE STUDY FOR EFFECT OF GREEN SURFACES IN IMPROVING THE CITY ENVIRONMENT

Elham Mounir Baddour, Nada Mohammed Al-Tanji, Isam Mohammed Abdel-Magid

Abstract


The aim of this research is to provide energy and reduce proportion of air pollution with greenhouse gases, as well as contribute significantly to noise reduction through use of non-traditional solutions such as planting of roofs of buildings.
Beds were manufactured to resemble three types of surfaces or beds: 1) simulates dense green surfaces planted with flowers 2) replicates large green surfaces planted with green grass with a thickness growth layer of 7, 14 and 21 cm, for each, these surfaces were compared to the third one 3) represents traditional surface tiles. Experimental results showed that efficiency of noise reduction increases with an increase in thickness of medium of growth. Noise reduction ratios for dense green surface and wide green surface attained 29.49, 33.9, 40.39%, and 33.24, 41.50, 48.24%,
respectively, as compared to conventional surface and following medium of growth. Results showed that green surfaces had a great ability to modify temperature inside houses. Nevertheless, effect of large green surfaces was better than dense green surfaces. Percentage of thermal change of wide green surface recorded 16.56 to 29.63% and dense green surface indicated values of 12.27 to 20.99 m as compared to traditional surface according to medium of growth. This is where efficiency of temperature adjustment increases with thickness of growth medium. Ratio of increase of oxygen
for wide green surface was 54%, while oxygen content over condensed green surface was 36% when compared to conventional surface. Thus, it is recommended to use wide, dense green surfaces to save energy, reduce noise pollution, increase oxygen in surrounding environment, and reduce pollution from vehicle exhaust, laboratories and other sources.

Keywords


green; broad; dense surfaces; noise pollution; temperature; oxygen

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