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Journal : Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)

Photovoltaic Solar Energy as a Power Source for Coal Waste Measurement Equipment Nurhalim Dani Ali; Feranita Feranita; Yoga Pratama; Noveri Lysbetti Marpaung; Iswadi Hasyim Rosma; Suwitno Suwitno
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 67 No 2 (2023): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36842/jomase.v67i2.346

Abstract

Coal mines are generally located in very remote areas and so far from the reach of the power grid. This study designs a coal waste measurement device using solar energy as the power source. The parameter being measured for coal waste is its acidity level to determine water quality standards. The test results show that the photovoltaic (PV) system is capable of supplying power to the pH meter device for a duration of 24 hours with a battery capacity of 18 Ah. The total load of this system is 5.6983 Watts. With variations in load and different weather conditions such as clear, cloudy, and overcast, the solar panel voltage can effectively meet the load requirements within the voltage range of 16.7 volts to 20.9 volts.
Calculation of Power Losses in Primary Distribution Line 20 kV with Point-To-Point Sequential Method Ervianto, Edy; M, Noveri Lysbetti; Nurhalim, Nurhalim; Amri, Rahyul
Journal of Ocean, Mechanical and Aerospace -science and engineering- Vol 54 No 1 (2018): Journal of Ocean, Mechanical and Aerospace -science and engineering- (JOMAse)
Publisher : International Society of Ocean, Mechanical and Aerospace -scientists and engineers- (ISOMAse)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (753.468 KB) | DOI: 10.36842/jomase.v54i1.51

Abstract

All electric power cannot be distributed well to consumers caused of Power-Losses caused by technical and untechnical losses. Power-Losses caused by technical issue in Distribution-Network caused-by resistance substance in conductor which is permanent. An ideal conductor must not has resistance, but in reality, every matter has resistance towards electric. Main possibility of Power-Losses in Distribution-Network is natural situation of network itself, such-as length of network always tends to increase. Aim of research is to calculate Power-Losses that absorbed by conductor in Primary-Distribution-Line-20kV with Point-to-Point Sequential Method while it loaded. The highest Power-Losses occurred in conductor OL–Melati Street with RST-Phases are 4766,441Watt, 4335,654Watt, 4003,747Watt, respectively. The biggest Power-Losses is on conductor of OL–Melati Sreet, whereas current and resistance are bigger than others. Total Power-Losses absorbed-by conductor is 72135.99Watt that the smallest losses, obtained from measuring of used real load on each Distribution-Transformer. Percentage of Power-Losses towards used power on Lobak-Feeder 1.3177%.
Co-Authors Abu Yazid Raisal, Abu Yazid Afrianti, Dedeh Kurnia Aielsa Naomi Athaya Akbar Hanafi Siregar Albert Timbul Siregar Ali, Nurhalim Dani Alwi, Rangga Aminuyati Amirul Latief Azzmi Amzah, Ridho Al Andhi, Rahmat Rizal Anhar Anhar Anhar Anisa Lutfia Antonius Rajagukguk Antonius Rajagukguk Antonius Rajagukguk, Antonius Ayunda Widia Kusuma Azwir Rezari Celfin Chandro Nainggolan Siahaan Dani Ali, Nurhalim Daniati, Septania Dedy Nurahmadin Demiza, Khosfikra Desty, Hygiana Prima Dewi Fitri Novita Pasaribu Dian Yayan Sukma, Dian Yayan Dwi Nur Indah Sari, Dwi Nur Indah Edy Ervianto Eka Novvala Dewi Eko Marjan Elfrida Nova Sartika Elirza Halena Elizabeth, Ivena Era Yohana Oktaviani Silalahi Esther Joan Ruthmika Sianturi Fadli Julianto Erga Fahmi, Ziddan Fakhriyah, Salsabila Febrizal Ujang Feranita Feranita Ferdian, Fhinta Syahila Feri Candra Fiki Sanora Firdaus Firdaus Fitria Sari Guspi Candra Hadiwandra, T Yudi Hassan, Rohana Henti Nuraini Napitupulu Hygiana Prima Desty Ibrahim, Sajid Illahi, Hayatul Izzi, Mambaul Jelita Mianarta Rajagukguk Jesslin Halim Kelvin Rainey Salim Mahindra, Syaputra Dwi Mar Qosim Marbun, Andreas Marlina Octa Venita Gultom Marsaulina Marpaung Maulana, Farhan Muhammad Ilham Muhammad, Satyo Mulia Sakti Rambe, Mulia Sakti Nofri Afandi Noviana, Eka Rani Nuraini, Dwi Nur Indah Sari Nurhalim Dani Ali Nurhalim Nurhalim Nurhalim Nurhalim, Nurhalim Nursaldila Nursaldila Nurul Whusto Octavia, Bunga Okpi Pranata Reskha Okta Rivaldi Padang, Junelka Lisendra Pratama, Muhammad Yogi Purnomo, Karin Dwi Putri, Katya Blinda R., Antonius Rahyul Amri Raja Hizkia Hutabalian Ramadhan, Ashry Ramadhan, Riyan Putra Ramadhan, Roza Syahputra Rani Fitri Arya Ningsi Raudah, Aulia Reski Lasari Ridho Al Amzah Rio Juan Hendri Butar Butar Rio Juan Hendri Butar-Butar Rizka Dwi Saputri Rosiki, Muhammad Habib Rosma, Iswadi Hasyim Sakti Hutabarat Sakti Hutabarat Sakti Hutabarat Salhazan Nasution Saputra, Muhammad Hakim Saputri, Rizka Dwi Septiyandi Kurniawan Settian Dwi Cahaya Siagian , Ruben Cornelius Siregar, Vivi Devina Siti Zubaidah Sofinanda Sari Solly Aryza Surya Sahri Ramadhan Suwitno Taruli Devi Sihombing Ummi Sri Rahmadhani Vadri, Yasminne R.A.S Valendino, Muhammad Wakhidah Rohayati Wijaya, Puri Yasminne R.A.S Vadri Yoga Pratama Yohanes, Edwin Yudha Hadi Martha Zahrah Fadhilah