DESIGN AND MANUFACTURE OF SMALL CENTRIFUGAL FLOATING PUMP TO INCREASING EFFECTIVENESS OF WATERING SHALLOTS Athoillah Azadi1, M. J. Tjaturetna Budiastuti, Novi Sulistyosari
Program Study of Agricultural Mechanization Technology, Indonesian Agricultural Engineering Polytechnic
Abstract
Shallots (Allium Ascalonicum L.) is a hotricultural commodity that has commercial value and high risk of failure. The availability of sufficient water in the dry season during the tuber formation period is a critical factor for cultivation. This study aims to design and manufacture a centrifugal water floating pump that is in accordance with the conditions of the shallot agroecosystem which will increase the efficiency and effectiveness of watering. This floating pump engine has a 1.5 kW gasoline motor as the main driver with a maximum vertical shaft rotation of 6500 rpm. The weight of the pump unit including fuel and oil is 13 kg so it is quite light and has high mobility. Based on the performance test, the maximum discharge of the pump at 50% valve opening is 169 liters/minute at 2200 rpm, and at 100% valve opening with a maximum discharge of 141 liters/minute at 2300 rpm. The average fuel consumption during the test was 0.48 liters/hour and can operate at a minimum water depth of 50 cm. A floating pump machine that has the ability to run automatically when operating to make it easier for farmers to water onions quickly and effectively.
