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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT JURNAL DINAMIKA VOKASIONAL TEKNIK MESIN JTT (Jurnal Teknologi Terapan) Journal of Renewable Energy and Mechanics Prosiding SNAST
Joke Pratilastiarso
Politeknik Elektronika Negeri Surabaya
Arts Humanities Automotive Engineering Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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PEMASANGAN SMART SOLAR WATER PUMP SEBAGAI ALAT IRIGASI SAWAH DI DESA GAYAM KABUPATEN BOJONEGORO Joke Pratilastiarso; Lohdy Diana; Erik Tridianto; Arrad Ghani Safitra
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 27, No 1 (2021): JANUARI-MARET
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v27i1.20801

Abstract

Proses irigasi merupakan faktor penting untuk menghasilkan produk pertanian yang berkualitas. Namun, mitra yang merupakan petani mengalami permasalahan irigasi antara lain biaya operasional dan bahan bakar dimana mitra masih menggunakan pompa diesel, serta ketidakamanan peralatan terhadap pencurian. Oleh karena itu, tujuan dari kegiatan ini yaitu membantu mitra dalam hal irigasi lahan pertanian dengan membuat pompa air tenaga surya yang disebut dengan Smart Solar Water Pump yang dilengkapi dengan sistem kontrol ketinggian air dan sistem keamanan. Metode yang digunakan dalam kegiatan ini diawali dengan diskusi dan pancangan sistem Smart Solar Water Pump, perizinan dengan mitra, diskusi dan sosialisasi dengan mitra, pemasangan alat dan instalasi sistem keamanan dan kontrol ketinggian air, pengujian awal, pendampingan, evaluasi, dan monitoring. Hasil kegiatan ini antara lain penerapan energi terbarukan yaitu Smart Solar Water Pump telah dapat dilaksanakan sebagai alat irigasi pada lahan pertanian mitra, mitra telah mampu mengoperasikan Smart Solar Water Pump secara mandiri, setelah dilakukan monitoring diperoleh hasil sistem pada Smart Solar Water Pump masih beroperasi secara baik, sistem keamanan berupa Short Message Service (SMS) juga berjalan efektif. Kata kunci: Irigasi, Pertanian, Smart Solar Water Pump, Sistem Kontro Ketinggian Air, Sistem Keamanan.
STUDI EKSPERIMEN PENGARUH JUMLAH PIPA SALURAN TERHADAP PERFORMA TURBIN FRANCIS Afif Nur Ayu Shadrina; Joke Pratilastiarso; Achmad Bahrul Ulum
PROSIDING SNAST Prosiding SNAST 2018
Publisher : IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The large population growth requires Indonesia to continue to build new power plants by utilizing the diversity of energy resources in Indonesia. PLTA is an integrated power system in a dam by utilizing the mechanical energy of the water flow to rotate the turbine. The francis turbine is one of the important components of hydropower that serves to convert or convert the potential energy form that water possesses into mechanical energy. Water flowing from the pipeline from a certain height can convert to pressure energy before entering the guide vane and some of the pressure energy is converted into kinetic energy as it passes through the guide vane. Some of that energy will drive the shaft or runner. The pipeline that serves to direct the flow before entering the spiral case can be varied by the number of single pipes up to three pipelines. The francis turbine is designed in a laboratory scale with a runner dimension of 30 cm and the number of 10 blades has a pipe dimension of 8.9 cm. The test results show that the trendline when using 2 pipelines is better than the other pipeline variation with the highest efficiency value of 6.2%.francis turbine
STUDI EKSPERIMEN SUPLAI GENERATOR OXYHYDROGEN MENGGUNAKAN KATALIS KOH Hendrik Elvian Gayuh Prasetya; Joke Pratilastiarso; Rif'ah Amalia; Mardatillah Intan F
Jurnal Teknologi Terapan Vol 5, No 1 (2019): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1035.66 KB) | DOI: 10.31884/jtt.v5i1.155

Abstract

Oxyhydrogen  is  the  most  promising  gas  which  significantly  can  reduce  the  fuel consumption  and  the  number  of  emissions  that  produced,  by  adding  the  gas  into combustion  chamber.  To  utilize  decreasing  emissions,  this  paper  study  about  added oxyhydrogens  gas  on  combustion  process  (hybrid)  in  motor  fuel.  This  paper  focuses  on evaluating  the performance  (power, mass  flow, and efficiency)  of oxyhydrogen generator with  12V source  voltage,  while  for  the  generator  installation  circuit  is  done  in  parallel which  is  expected  to  produce  maximum  oxhydrogen  gas  content.  The  type  of  electrolyte used as a generator solution is a base  ????????????  concentrate (1, 3, 5, 7, 9 gram / Li ter), basic solution  ????????????  is  chosen  because  it  has a tendenc to produce a  lot of hydrogen gas.  The methods are design the generator, string the generator and the measuring instrument up, and also the performance testing. As the result, the higher consentrate of the catalyst, the higher the power needed, the higher  mass flow produced, and the higher efficiency that obtained by using parallel electrode aligntment.
Studi Eksperimen Performa Helical Darrieus Turbin Farming Lohdy Diana; Prima Dewi Permatasari; Joke Pratilastiarso; Arrad Ghani Safitra
Jurnal Dinamika Vokasional Teknik Mesin Vol 7, No 2 (2022)
Publisher : Department of Mechanical Engineering Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/dinamika.v7i2.53500

Abstract

Mengadopsi potensi aliran air bawah laut, turbine farm dapat diterapkan pada saluran irigasi pertanian. Hal tersebut memiliki potensi dan realisasi yang lebih memungkinkan mengingat jumlah area pertanian di Indonesia masih sangat luas. Tujuan dari penelitian ini adalah untuk mengetahui performa turbin. Penelitian ini menggunakan rancang bangun Helical Darrieus Turbine Farm yaitu berupa saluran aliran air dan pembuatan beberapa turbin. Turbin arus laut dengan tipe helical darrieus sebanyak tiga buah diletakkan di dalam water flume. Kondisi dan geometri water flume dilakukan pendekatan sesuai dengan kondisi aktual saluran irigrasi pertanian yaitu kecepatan air 0.4 m/s. Penelitian dilakukan secara eksperimen di dalam laboratorium. Hasil penelitian menunjukkan pada kecepatan putar terbesar yaitu sebesar 22 rpm, didapatkan nilai torsi 0.035 Nm. Hubungan antara tip speed ratio dengan koefisien torsi menunjukkan tren yang meningkat. Nilai tertinggi koefisien torsi hasil pengujian adalah 0.065. Pada TSR maksimal nilai Cp juga maksimal. Koefisien performa maksimal pada turbin sebesar 0.051. Berdasarkan hasil tersebut desain turbin memerlukan modifikasi dengan memperpanjang jarak antar turbin sehingga menghasilkan performa yang lebih tinggi.
Analysis of Fluid Flow Characteristics Across the Darrieus Turbine in Irrigation Channels: ANALISA KARAKTERISTIK ALIRAN FLUIDA MELINTASI TURBIN DARRIEUS PADA SALURAN IRIGASI Joke Pratilastiarso; Lohdy Diana; Nu Rhahida Arini; Faris Hilmi Kurniawan; Firdaus Fhudoli Putra
Journal of Renewable Energy and Mechanics Vol. 6 No. 01 (2023): REM VOL 6 NO 01 2023
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/rem.2023.vol6.no01.10905

Abstract

This study simulated the characteristics of the fluid flow that passes through the Darrieus turbine before installation and testing were carried out. The purpose of knowing the flow characteristics can determine the profile and position of the maximum speed so that the design and placement of the turbine can be improved. The research method was carried out using dynamic fluid computational simulations in three-dimensional form with steady state conditions, discretization using second-order, with convergent conditions when it reached 10-6. The simulation results show that the position of the flow above the turbine had the lowest value because the fluid flowed relatively without disturbance which caused the velocity to had a value almost the same as the incoming fluid velocity. The fluid velocity increased when it was in line 2 and line 3 or across the turbine. This was due to the turbulence generated by the rotation of the turbine. While the speed on line 4 or below the turbine had a lower value than line 2 and line 3. This was due to the position below the turbine so that the turbine rotation did not have an impact on speed. At the four line positions the velocity increased at Y=0.7 m or when the fluid hits the turbine. This increase in fluid velocity was expected to turn the turbine. The results also included the flow distribution in the form of a streamline in several positions where the flow that was in contact with the channel wall had a low velocity value due to friction with the wall.
Co-Authors Achmad Bahrul Ulum Afif Nur Ayu Shadrina Arrad Ghani Safitra Erik Tridianto Faris Hilmi Kurniawan Firdaus Fhudoli Putra Hendrik Elvian Gayuh Prasetya Lohdy Diana Mardatillah Intan F Nu Rhahida Arini Prima Dewi Permatasari Rif'ah Amalia