Abstract

Nowadays, direct media use in learning energy is rarely found. Therefore, the authors intended to design a mini micro-hydro power plant (MHPP) in order to give direct experiences to students. This study generally aims to develop a mini MHPP consisting of equipment design, component selection, and the MHPP assembly. A test on discharge, heights, and produced power is then conducted. The data acquired are then analyzed in terms of either Pteotirik or Preal power using a predetermined equation. An analysis to the factors influencing the P values is then carried out. The power input of resulted from the water discharge management is 35.64 mW, while that of the power output is 9,61 mW. The efficiency of the MHPP set is by 26.96% which is considered quite low due to such factors as turbine blades, penstock pipes, generators, and the shift from water potential energy to other types of energies which is inevitable. It is expected that the developed mini MHPP is applicable as practicum learning media giving a lot of such learning experiences to students as to identify how hydroelectric power plant is, how the water energy shifts into electric energy, how high the electricity produced is, and to analyze factors influencing how high and low the electricity produced by a power plant.

Highlights

  • Electricity consumption from renewable energy sources seems to be very poor

  • This study generally aims to develop a mini micro-hydro power plant (MHPP) consisting of equipment design, component selection, and the MHPP assembly

  • It is expected that the developed mini MHPP is applicable as practicum learning media giving a lot of such learning experiences to students as to identify how hydroelectric power plant is, how the water energy shifts into electric energy, how high the electricity produced is, and to analyze factors influencing how high and low the electricity produced by a power plant

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Summary

Introduction

Electricity consumption from renewable energy sources seems to be very poor. More than 80 percent of the power plant's electricity supply comes from fossil fuels. Each university needs to prepare their students both for a good understanding of current energy issues and for technical training in the planning of a micro-hydropower plant as a source of new and renewable energy needs For this reason, in the midst of the supply of electrical energy sources from fossil fuels whose presence is increasingly depleted and requires special attention, in particular energy is an important aspect to research, such as electrical energy, mechanical energy, it is necessary to prepare real learning media about this issue (energy). In designing a micro hydro power plant, there are many items to consider, such as field topographical surveys, calculation of water levels and discharge, components of construction work (dams, spillways, intakes, channels, Penstock), turbine type range, and specifications of the generator (Nasir, 2014; Sungai et al, 2008). Pelton's turbine blade is struck by this water pressure, making it spin The efficiency of this transformation of energy depends on the rotor's nozzle, shape and material. A four-poles generator with a rotation of about 1500 rpm is commonly used for micro hydro

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