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Syarif Ishak Alkadri
Teknik Elektro, Politeknik Negeri Ketapang
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Rancang Bangun Sistem Kendali dan Monitoring Rumah Tinggal Menggunakan Smartphone Berbasis Mikrokontroler di Sukaharja Kabupaten Ketapang Syarif Ishak Alkadri
Politeknosains Vol 18 No 2 (2019): Jurnal Politeknosains Volume 18 Nomor 2 - September 2019
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Pratama Mulia Surakarta

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Abstract

A recent technological development in many developments such as small shophouses and residential houses has made practitioners create ideas that are very useful for society in life today, especially the number of theft cases that target residential houses. The occurrence of the theft was due to a lack of security, causing the thieves to intend to look for opportunities to enter the house. To overcome this problem arises the design and control systems using a smartphone-based microcontroller. The open source operating system on an Android smartphone can be used to make a light controller and servo motor application to play CCTV using Arduino UNO (Microcontroller AT Mega 328). Android applications are used as input commands to the microcontroller circuit via a bluetooth module connector. The servo motor controller system for playing CCTV uses 3 output pins on the microcontroller, and for the light controller system uses output pins 3,4,5,6,7,9,10,11,13 on the microcontroller, the light controller system pins are connected with 2.2K ohm resistor for lights with a current (DC), and for lamps with a current (AC) using relay modules, relay modules function as a switch. The results obtained by the servo motor can rotate 180º and 9 lights can work controlled with an Android smartphone.
Perancangan Turbin Air Cross-Flow dengan Efisiensi Maksimum untuk Pembangkit Listrik Tenaga Mikro Hidro (PLTMH) di Desa Bungan Jaya Kecamatan Putusibau Selatan Kabupaten Kapuas Hulu Provinsi Kalimantan Barat Syarif Ishak Alkadri
Politeknosains Vol 17 No 2 (2018): Jurnal Politeknosains Volume 17 Nomor 2 - September 2018
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Pratama Mulia Surakarta

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Abstract

To increase electricity access rate of the population in West Kalimantan Province needs to be done a variety of efforts in relation to supply of the electrical energy. One is through the “Pembangkit Listrik Tenaga Mikro Hidro (PLTMH)” as an alternative to reduce the use of “Pembangkit Listrik Tenaga Diesel (PLTD)” which requires a very large operating costs and are not environmentally friendly because it causes air pollution. PLTMH is able to generate electrical energy with environmentally friendly, and can reach the more remote or rural areas. The tools used to generate electricity using micro hydro power is cross-flow water turbine with main component is the turbine wheel (runner) and water spray (nozzle). To design a cross-flow water turbine in order to generate maximum efficiency, it is necessary to consider various design parameters such as angle of the water jet into the runner (angle attack), entry angle of the blade, the ratio of the inside diameter and outside diameter of the blade, as well as the number of blades. This study examines the value of these parameters in designing cross-flow water turbine construction has 27 meters head and water debit is 0.157 m3 in PLTMH Desa Bungan Jaya, Kecamatan Putusibau Selatan, Kabupaten Kapuas Hulu, West Kalimantan Province. The study found that in these locations can be designed cross-flow water turbines with a power of 37 kW and a maximum efficiency of 95%. In order to achieve this efficiency, the turbine is designed to transmit water inlet runner angle or angle attack of 22 °, the angle of the blade entered by 39 °, the ratio of inner diameter and outer diameter runner at 0.60, and the number of blades as much as 18 blade.
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