HARNESS THE ENERGY FROM DRAINAGE SYSTEM BY USING A PICO TURBINE (PICO TURBINE)

Abstract

ABSTRACT In modern period, we require harnessing of energy from various possible opportunities in the living world, as non- renewable energy sources are limited and getting depleted day by day which need conservation and some new methods of unconventional energy resources for future. There is ample amount of energy available in the environment. But it is necessary the focus should there. The energy is available in the flowing water and the power was generated in the large amount but in this project the focus had been given on the harnessing energy from low amount of water. The elementary idea of the project i.e. harnessing energy from drainage system by using a cross flow pico-turbine. Which have usually minimum of i.e. a head of about .25 to 0.5 m for the discharge of the water coming out through the drainage system or the general irrigation systems . So in this project work the idea has been kept on focus that the energy must be harnessed whatever small amount that is it may be from 0.1 W -10 W. So two small size runner diameter 225 mm and the width 100 mm, which are identical but in opposite blade type was assembled on a frame so that they can be installed in a open channel of irrigation system or the municipal drainage system channel. But there must be some flow velocity available. In experiment the discharge was controlled by the sluice gate and the head was calculated with the upstream and down stream heads. The supply of water was done on a recirculation type experimental setup. The rpm of rotation was measured by using digital tachometer (rpm measuring device) and the torque was measured by rope brake dynamometer. Thus using this actual power was calculated and hence efficiency of the system was calculated. The results of this project are not much interesting in testing the generated power was of an amount of .01 W. Since there was a heavy friction whose order was 2 W was present in the model. But it was observed that very small size turbine can be installed in the system where the head available is .5 m – 10 m and discharge from 2 litre/s to 50 lit/ sec. The most advantageous thing about this project is that the cost of installation is very low. It is economical for a common man. The cost of the whole project is around Rs. 2000-5000. Not only this but also the method of installation of the project is very easy. The vi system is completely pollution free and it is not dangerous in operation as it is a small system.