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All Journal ELKHA : Jurnal Teknik Elektro Jurnal Otomasi Kontrol dan Instrumentasi Vokasi
Eko Widagdo
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mathematics

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Optimisasi Pola Pembebanan Daya Mesin Pembangkit Listrik Diesel SWD 16 TM 410 Terhadap Efisiensi Konsumsi Bahan Bakar Widagdo, Eko
ELKHA: Jurnal Teknik Elektro Vol 5, No 2 (2013): Edisi Bulan Oktober 2013
Publisher : Faculty of Engineering, Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (287.869 KB) | DOI: 10.26418/elkha.v5i2.4613

Abstract

Abstract PLTD Sungai Raya is one of the generation and distribution units electricity in PT PLN (Persero) Sector Kapuas. Generator engine used is SWD 16TM 410 with fuel con-sumption Marine Fuel Oil (MFO), which was still quite high fuel consumption. Therefore, research is necessary to study the fuel consumption savings that can help to reduce operating cost. In this study, the purpose is to study loading pattern optimization engine power plant on fuel efficiency, both theoretically and collected data. Based on the calculation and processing of the data, produce specific fuel consumption (SFC) with value of a minimum of 0.23378 liters / kWh at maximum load of 5.884 MW. The cal-culation of value theoretically share a minimum SFC 0.2058 liters/kWh with a maximum load of 6.5214 MW. The efficiency of the fuel obtained for 11.97%, and the efficiency of the power load by 10.82%. This study illustrated that the loading pattern would have an impact on the need for fuel efficiency and engine performance. Keywords Patterns of loading, MFO, optimi-zation, specific fuel consumption (SFC), Efficiency
Analisa Kekerasan dan Kekuatan Tarik pada ST 60 Pasca Hardfacing Welding dengan Variasi Kuat Arus Las dan Elektroda Rd 260 3,2 mm Sutrisno, Sutrisno; Azmal, Azmal; Widagdo, Eko
Vokasi: Jurnal Publikasi Ilmiah Vol. 19 No. 2 (2024): Vokasi: Jurnal Publikasi Ilmiah
Publisher : Politeknik Negeri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31573/jv.v19i2.991

Abstract

Welding is needed to fill holes in castings, increase the hardness of the tool layer and equipment or worn components. Damage usually occurs on the wheel shaft of the truck that rubs against the bushing. The purpose of this study was to determine the effect of the hardfacing welding method with variations in current of 90 A, 110 A and 120 A using RD 260 electrodes measuring 3.2 mm on surface hardness and tensile strength. The method used was experimental, aimed at testing and comparing ST.60 material that was not hardfacing welded and hardfacing welded. The results of the study obtained the highest average hardness value in hardfacing welding with a current of 120 A of 202.89 HV, the lowest average hardness value in specimens without hardfacing welding was 97.1 HV and hardfacing welding with a current of 90 A obtained an average hardness value of 104.80 HV and hardfacing welding with a current of 110 A obtained an average hardness value of 112.37 HV. For the average value of tensile strength (σtrk) without hardfacing welding is 660.67 N/mm², the tensile strength in hardfacing welding decreases where for a current of 90 A it is 567.80 N/mm², a current of 110 A the tensile strength (σtrk) is 568.88 N/mm² and 120 A the tensile strength (σtrk) is 574.11 N/mm². This shows that the surface hardness increases with increasing current in hardfacing welding and the tensile strength value will decrease.
Pengembangan Sistem Akuisisi Data Otomatis Berbasis Arduino Untuk Alat Uji Unjuk Kerja Turbin Air Alfeus Sunarso; Uray Vicky Ramadhan; Dominikus Sulistiono; Agato Agato; Eko Widagdo; Dwi Handoko; Aripin Manurung
Jurnal Otomasi Kontrol dan Instrumentasi Vol 11 No 2 (2019): Jurnal Otomasi Kontrol dan Instrumentasi
Publisher : Pusat Teknologi Instrumentasi dan Otomasi (PTIO) - Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/joki.2019.11.2.4

Abstract

Pada eksperimen untuk mempelajari unjuk kerja turbin air, diperlukan pengukuran beberapa parameter seperti tekanan  dan  debit  air  yang  masuk  ke  turbin  serta kecepatan  putar  dan  gaya  pengereman  turbin.  Untuk mempermudah  eksperimen  tersebut,  dikembangkan sistem  akuisisi  data  otomatis  menggunakan  perangkat keras dan perangkat lunak open source  berbasis Arduino. Pengembangan sistem tersebut dilakukan melalui tahap perancangan,  implementasi  dan  pengujian.  Sistem dirancang  memiliki  pengendali  mikro  yang  membaca sinyal  dari  sensor  tekanan,  debit,  gaya  dan  proximity. Sinyal tersebut diolah dan kemudian ditampilkan ke LCD serta  disimpan ke dalam kartu memori secara berkala. Untuk  mewujudkan  rancangan  tersebut  berbagai perangkat  dirangkai  dengan  papan  pengendali  dan fungsinya diuji dengan memasukkan program tertentu ke pengendali  mikro.  Untuk  perangkat  sensor,  dilakukan kalibrasi  dengan  membandingkan  nilai  pembacaannya dengan  nilai  pembacaan  alat  ukur  komersial.  Hasil pengujian  sistem  keseluruhan  menunjukkan  bahwa sistem  telah  berfungsi  dengan  baik.  Pengendali  mikro telah dapat membaca dan mengolah sinyal dari berbagai sensor, menampilkan  data  ke  LCD,  serta  menyimpan data  ke  kartu  memori.  Dengan  demikian,  pengukuran dan  pencatatan  berbagai  parameter  eksperiman  dapat dilakukan  secara  otomatis,  sehingga  pengujian  unjuk kerja  turbin  dapat  dilakukan  secara  sistematis  dan komprehensif.
Co-Authors Agato Agato Alfeus Sunarso Aripin Manurung Azmal, Azmal Dominikus Sulistiono Dwi Handoko Sutrisno, Sutrisno Uray Vicky Ramadhan