Gravitational water vortex pico hydro power modeling for aquaculture implementation

Abstract

Nanotechnology and Graphene Research Centre (PRINT-G) of Universitas Padjadjaran is currently developing fine bubble generator (FBG) technology which is applied for the fisheries sector to process aquaculture wastewater into clean water and as an aerator. In its implementation, adequate energy is needed, but it can be applied with cheaper electricity costs, such as renewable energy sources. In this research, a gravitational water vortex pico hydro power (GWVPHP) plant modeling has been carried out. .This system can be used under 2 meters head condition and for small water flow, that is suitable to use in fishing pond locations that do not have high head and limited water. It is known that the velocity of water flow is 0.4 m/s, and the head is 1.6 meters with the height level of the water varying every 5 centimeters increase in the range of 5 to 50 centimeters. As a result, we obtained the minimum potential power of 111.9 Watt and a maximum of 1,558.2 Watt. In modeling, we assumed that we used turbine with 80 percent efficiency, thus we obtained the turbine generation power of 89.6 Watt, and a maximum of 1,246.6 Watt. In addition, the modeling also uses 3 phase AC generators with an efficiency value of 70 percent, so that a minimum generator generation power of 62.7 Watt is obtained, and a maximum of 872.6 Watt is obtained. Control panel also used with an efficiency of 70 percent, so that a minimum power that produced is 43.9 Watt, and a maximum of 610.8 Watt. Fine bubble generator (FBG) that used for aquaculture needs 125 Watt to be functioned. Thus, the power that had generated by the gravitational water vortex pico hydro power (GWVPHP) plant could be supplied the energy needs of fine bubble generator (FBG).