Estudo sobre o uso de microalgas na cobertura de edificações e sua influência na temperatura dos espaços arquitetônicos internos

Abstract

The properties observed in microalgae can assist in solving major problems facing humanity, such as hunger, energy shortages, soil fertilization, air and water pollution, as well as producing excellent dietary supplements and active principles for cosmetics. All this is possible thanks to the optimized process of photosynthesis and low energy expenditure of microalgae. How are grown in an aqueous medium to produce these solutions in places not conducive to food production as the Brazilian Northeast is possible. In temperate countries, where most of the studies on microalgae are developed, you can not hold a large-scale cultivation, but in tropical climates this problem does not exist. This paper will address the issue of reducing the internal temperature of buildings using microalgae. The cultivation system will be attached to the building in order to cover part of it, avoiding direct sunlight on the walls of the building, due to microalgae cultivation system will also not be heated too much because of photosynthesis, absorbing part of the light energy and converts it into organic compounds. Tests were conducted to identify the influence of the culture system and the influence of microalgae in the internal temperature. A mean difference of 2.6 ° C relative to the cultivation system and 0.5 ° C was observed on the microalgae. These results relate to a miniaturized prototype, but the effects of scaling, described in the working are by far too complex to be addressed, however it was shown that microalgae acted positively in reducing the tested room temperature. This finding opens the possibility for the exploration of new studies on larger scales to analyze comparatively effects.