NUMERICAL SIMULATION OF HYDROGEN STORAGE IN ACTIVATED CARBON STORAGE SYSTEM

Abstract

The new millennium has seen a of the energy on mankind. It has also seen a lot of effect related to by the energy from fossil fuels. Hydrogen is on focus due to its pollution release higher energy content per kilogram. The volumetric density of hydro en is very less thus storing hydrogen as been a problem due to its low density. Many o ,)ion's have been tried till now to come up with a optimal hydrogen storage tank, but, p ne with success. One of the promising techniques is to store the hydrogen in activated/bon. ion was carried out to analysis the thermal aspects of hydrogen storage system. flow governing equations were solved with energy governing equation and D-A model. results show that a good agreement with experimental values. The effects of pressure, temperature and adsorption were analyzed. The various important parameters such as mass flow rate, porosity and thermal conductivity of the bed was analyzed and their impact on pressure, temperature and adsorption were plotted. The increase in mass flow rate is directly proportional to the rise in temperature. It also reduces the charging time of the cylinder and increases the rate of adsorption but keeping absolute adsorption constant for a given pressure. The increase in porosity of the bed leads to rise in adsorption value due to better access to the micro-pores. The filling time also reduces with increase in porosity but temperature as not much influence on porosity. The thermal conductivity increase reduced the temperature inside the cylinder. The hot region was also shrinking. The reduction in the temperature lead to the increase in the absolute adsorption levels of the storage tank.