Abstract
Energy has become a very serious problem in many countries, one of which is electric energy. Water is the latest energy that deserves to be developed and also utilized to the fullest. In addition to the source of our life, water is also an energy that can be utilized for a variety of things including the development of technology, such as the energy source for hydroelectric power generation such as pico hydro. An example of piko-hydro is a Pelton turbine that utilizes the flow of water from a height. Among other advantages, the power produced is large, simple construction, easy to maintain, the technology that is simple and easy to apply in isolated areas. In generating the maximum electric energy, research is conducted experimental studies of the influence of Pelton turbine head height variation of the electrical energy that is generated to turn on the laptop. The study was carried out in the ITATS H building using a variety of valve openings and head heights of 18º, 36º, 54º, 72º, 90º and 17, 12.5, and 9 meters on Pelton turbines. Based on research and data analysis, the greatest electrical power is obtained, which is 3.96 Watts at variations of the valve opening 90º and with a reservoir height of 17 meters. The maximum efficiency system achieved at the water reservoir height of the 17 meters with 90 valve openings is 14.56%. The results of the electrical power produced by this Pelton turbine can be used to charge the laptop for 2.18 hours
Highlights
Energy has become a very serious problem in many countries, one of which is electric energy
In Indonesia, electricity is supplied from the National Electricity Company or commonly known as PLN, which electricity is obtained from hydroelectric power plants as well as from other energy sources
This is compounded by access to remote areas that difficult road access makes installation cost of PLN's electricity installations increasing, so it is necessary to find an alternative source of energy to another
Summary
Energy has become a very serious problem in many countries, one of which is electric energy. To make a large-scale hydroelectric power plant would need a great cost so that it can increase the costs that must be borne by the public as consumers This is compounded by access to remote areas that difficult road access makes installation cost of PLN's electricity installations increasing, so it is necessary to find an alternative source of energy to another. From the literature studies that have been reviewed, valve openings and reservoir heights are analyzed in this study This is intended to determine the value of electrical energy and the efficiency value produced by the Pelton turbine system by loading the laptop. The energy is used to charge a laptop with an input power of 100-200 volts with a current of 1 Ampere (AC) and the frequency is 50-60 Hz, while the output itself is 19V and 1.75 Ampere (DC)
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