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Pollutants removal from combustion gases during diesel engines operation is one of the most widely known environmental applications of activated carbons. In order to guarantee the successful removal of contaminants and pollutants on activated carbons, the development of new adsorbents has been increasing in the last few years. This paper presents a systematic study for cleaning diesel engines of CO, SO2, NO2 and H2S using the process of physical adsorption on novel adsorbents obtained from tropical biomasses. The combustion gases were qualitative and quantitative analyzed by Gas Chromatography. The use of this simple method is a valuable alternative to meet emission standards in Developing Countries. It was demonstrated that the agricultural wastes studied here are a feasible alternative for granular activated carbons preparation for pollutants removal during diesel engines operation, approaching its efficiency to the commercial Catalytic Converters.
This study is one of a few studies which have investigated the use of agricultural wastes as alternative source for activated carbons preparation. The products synthetized trough this systematic investigation has the adequate adsorbent properties for environmental applications like pollutants removal during diesel engines operation.
On Generation of Renewable Energy from Road Traffic
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This paper investigates the possibility of generating green power from day to day road traffic. This source of green energy is obtained from the proposed systems that harness the wasted energy such as the kinetic and vibrated energy from everyday traffic. These include two proposed systems that were designed and implemented using the MATLAB-Simulink platform. In the first proposed system, the renewable energy is generated using compressed air which is suitable for developing countries and the second proposed system is designed such way to another system to deduce electricity by harvesting the kinetic and vibration energy. The second proposed system is suitable for a developed country based on the implementation expenditures. The system was designed considering all the factors that involved producing a realist outcome. These factors include the load factor, heat loss, power loss, frictional losses and the switching losses that dwell into the field of fluid mechanics, power electronics and element analysis. The system performance was also determined by considering the nature and characteristic properties of the materials, motors and generators used; and the usage time of the system. As a result, incorporating the necessary factors involved in the system designing, the power generated under traffic rate condition at peak and off peak hours for each system was estimated. The obtained results proved that substantial amount of power are generated during peak traffic hours using the two proposed methods.
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