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All Journal Jurnal Teknik Mesin Indonesia
Dwi Aries Himawanto
Staff Jurusan Teknik Mesin, Fakultas Teknik, Universitas Sebelas Maret
Aerospace Engineering Automotive Engineering Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pembuatan dan pengujian turbin propeller dalam pengembangan teknologi pembangkit listrik tenaga air piko hidro (PLTA-PH) dengan variasi debit aliran Henanto Pandu Dewanto; Dwi Aries Himawanto; Sukmaji Indro Cahyono
Jurnal Teknik Mesin Indonesia Vol 12 No 2 (2017): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1083.684 KB) | DOI: 10.36289/jtmi.v12i2.72

Abstract

Hydroelectric power plants (hydropower) with a power generated capacity of less than 5 kW called "Pico Hydro" (hydropower-PH). Pico Hydro is one of the renewable energy sources that are environmentally friendly. In this study aims to: (1) the manufacture hydropower plants Pico Hydro energy-efficient, renewable and environmentally friendly; (2) determine the efficiency of the turbine with the testing of flow variation; (3) determine the efficiency of generator. Designing and making portable water turbines are easily in the manufacture, operation, and maintenance and has a high efficiency and effectiveness that can use the method of reverse engineering. The production process is performed to create a turbine by the lathe and welding processes. While the materials used are mild steel. Results of this study were found that: (1) the manufacturing process of hydropower plants Pico Hydro can be performed easily by the public; (2) the type of turbine used in hydropower-PH testing is a propeller turbine with 4 blades; (3) flow measurement with V-Notch method showed the following actual debit are 5.38 x10-3 (m3/s), 6.62 x10-3 (m3/s), 7.69 x10-3 (m3/s) and 8.84 x10-3 (m3/s. Turbine efficiency is 3.59 %, 4.26 %, 5.66 % and 7.54 %. The efficiency of the generator has a value of 39.31 %, 40.51 %, 32.55 % and 30.45 %.
Analisa thermogravimetry pada pirolisis limbah pertanian Yulius Widiardi Pratomo Wiyoto; Eko Prasetyo Budiana; Dwi Aries Himawanto
Jurnal Teknik Mesin Indonesia Vol 11 No 1 (2016): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (640.526 KB) | DOI: 10.36289/jtmi.v11i1.47

Abstract

The potential for biomass to supply much larger amounts of useful energy with reduced environmental impacts. Pyrolysis and other thermochemical conversion processes offer an important opportunity for utilization of biomass and waste. Pyrolysis of biomass can be described as the direct thermal decomposition of the material in the absence of oxygen to obtain an array of solid (char), liquid (tar) and gas products. Pyrolysis agricultural waste are produced tar, char and organic component. The thermal behaviour of selected biomass as rice straw, cassava peel, rice husk, saw dust and corncob was investigated using a thermogravimetric analyzer (TGA). Thermogravimetry has proved to be a useful tool in elucidating the decomposition of various biomass material. In thermogravimetric analyzer have RS Key and Adam Utility to convert data from TGA to computer. Sampel weight used 20 gram with heating rate 15 oC/min, maximal temperature 600 oC, holding time 10 minute and irrigated with 100 ml/min gas nitrogen. Result in this research indicates that drying process occur loss weight agricultural residu consecutive 5,35 %, 9,28 %, 12,91 %, 7,83 % and 7,82% and volatile matter in rice straw: 53,16 %, cassava peel: 60,28 %, rice husk: 48,24 %, saw dust: 64,32 % and corncob: 66,71 %.
Co-Authors Eko Prasetyo Budiana Henanto Pandu Dewanto Sukmaji Indro Cahyono Yulius Widiardi Pratomo Wiyoto