{"title":"Rancang Bangun Automatic Transfer Switch (ATS) Hybrid Daya PLN Dan PLTS Pada Sistem Hidroponik","authors":"Cyntia Widiasari","doi":"10.35143/elementer.v9i1.5878","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5878","url":null,"abstract":"Hydroponic system requires continuous circulation of water to grow plants. To prevent the risk of stopping the circulation of this water, another source of electrical energy is used to backup power sources if there is a blackout at PLN. So, in this research Automatic Transfer Switch (ATS) system was designed in Hydroponics to maintain water circulation. In which this ATS has a contractor that two power sources that can flow and cut off electric current, which is also connected to the MK2P Relay as an inverter switch, and the MCB as a component protector. The backup power source is used by PLTS connected to the inverter, where the inverter is supplied by a battery that is charged by solar panels as a backup power source. The results of this design show that the transfer delay from PLN to PLTS for about 1,52 seconds and PLTS to PLN is 5.40 seconds. The delay is caused by TDR delay set for about 5 seconds to connected to PLN. As well as the reliability that results form this system is also balanced and can provide electric voltage u to 100% performance with experiments using different delays such as 1, 2, 3, 4, and 5 seconds for 10 trials which can turn on a maintain water circulation on hydroponics.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122654124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Mechanical Properties of ST 37 Carbon Steel on the Variation of SMAW Current Strength and Bending Angle","authors":"Dibyo Setiawan","doi":"10.35143/elementer.v9i1.5886","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5886","url":null,"abstract":"Proses sambungan las SMAW adalah salah satu teknik sambungan logam yang digunakan di Industri. Merujuk kepada kegiatan studi terdahulu belum dilakukan eksperimen dengan variasi kuat arus yang lebih tinggi diatas 80 A untuk sambungan material ST 37. Tujuan penelitian ini untuk menganalisis sifat mekanik sambungan las SMAW pada material baja ST 37 ketebalan 8 mm., metode pendekatan menggunakan eksperimen sambungan las SMAW dengan memberikan variasi kuat arus, yang diterapkan yaitu 90 A, 100 A dan 110 A, sudut kampuh 600 dan 700. Hasil analisis sifat mekanik baja karbon ST 37 diperoleh kesimpulan, semakin besar variasi kuat arus dan sudut kampuh 600 Semakin besar nilai kuat tariknya, lain halnya pada sudut kampuh 70\u00000 terjadi penurunan angka kuat tarik pada 90 A sebesar 399,94 N/mm2 ke 100 A sebesar 385,35 N/mm2, namun saat di naikkan ke 110 A angka kuat tarik meningkat menjadi 482,54 N/mm2. Hasil uji kekerasan diperoleh bahwa untuk semua variasi kuat arus dan sudut kampuh, daerah weld metal memiliki angka hasil uji keras yang dominan dengan angka tertinggi sebesar 234 HV, di ikuti daerah HAZ untuk hasil menengah dan hasil terendah terjadi pada base metal.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"298 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134540034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Sistem Cerdas Pemantau Kesehatan Pasien Lanjut Usia Berbasis IoT (Hardware)","authors":"Amelia Cahyana","doi":"10.35143/elementer.v9i1.5998","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5998","url":null,"abstract":"The Internet of Things (IoT) is a technological innovation that is widely used in science, including the field of health sciences. An intelligent health monitoring system for elderly patients is only one of the IoT applications that might be developed in the field of health sciences. This system must be implemented so that doctors can ascertain the patient's status and that patients can be monitored from home rather than having to visit the hospital for checkups. Therefore, a device is required to make it simpler for patients and medical professionals to check the three vital signs—heart rate, oxygen saturation, and body temperature. Vital signs are a variety of physiological statistical measurements that are used to assess a patient's health state, particularly in elderly people (elderly) who are ill or at risk. With the use of this instrument, the patient can provide the doctor with information on his vital signs, making it simpler for the doctor to identify the patient's condition and treat the patient. This tool's design makes use of the MAX30100 sensor, which measures oxygen saturation and heart rate. Then comes the MLX90614 sensor, which measures body temperature. The microcontroller (ESP32) processes the sensor before sending the data to the MySQL database. The percentage accuracy rate for testing the heart rate is 96.15%, the percentage accuracy level for testing the oxygen level is 97.4%, and the percentage accuracy level for testing the body temperature is 98.3%.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120934388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rancang Bangun dan Pengaruh Susunan Pisau Setengah Helix pada Mesin Pencacah Limbah Sayur","authors":"Nurcahya Nugraha","doi":"10.35143/elementer.v9i1.5991","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5991","url":null,"abstract":"Limbah sayur adalah sisa sayuran yang layu dan membusuk. Biasanya limbah sayur cenderung hanya menjadi sampah yang berujung di tempat pembuangan. Sampah-sampah tersebut masih mengandung kadar air yang tinggi dan memiliki potensi untuk dimanfaatkan sebagai pakan ternak atau pupuk kompos. Namun terdapat kendala dalam pemanfaatannya, kendala utama dalam pemanfaatan limbah sayur yang akan dijadikan sebagai pakan ternak adalah ukuran limbah sayur yang masih cenderung terlalu besar sehingga tidak dapat dimanfaatkan langsung sebagai pakan ternak. Oleh karena itu, diperlukan teknologi yang dapat mempermudah proses pencacahan. Salah satu teknologi pencacah yang tepat untuk memanfaatkan limbah sayur adalah mesin pencacah limbah sayur. Mesin pencacah limbah sayur dirancang menggunakan poros horizontal dan digerakkan oleh motor listrik AC dengan daya 1 hp. Digunakan mekanisme pulley dan belt untuk mereduksi putaran dan mentransmisikan daya dari motor ke pisau pencacah. Pada mesin pencacah ini digunakan susunan pisau setengah helix dan susunan sejajar. Pada mesin ini dilakukan pengujian untuk mengetahui kelebihan pemilihan pola susunan pisau setengah helix dibandingkan dengan pola susunan pisau sejajar, serta untuk mengetahui kapasitas pencacahan yang dimiliki oleh mesin. Pada penelitian ini dilakukan percobaan menggunakan kecepatan putar 1800 rpm. Mesin pencacah dengan susunan pisau setengah helix memiliki kapasitas pencacahan sebesar 231,4 kg/jam, lebih besar dibandingkan dengan susunan pisau sejajar yang memiliki kapasitas 89 kg/jam. Oleh karena itu kapasitas pencacahan susunan pisau setengah helix lebih besar dibandingkan kapasitas pencacahan susunan pisau sejajar.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123515026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"DESAIN SISTEM PEMADAM KEBAKARAN MENGGUNAKAN METODE WATER SPRAY DAN FOAM SEBAGAI INSTALASI PERLINDUNGAN KEBAKARAN PADA TANGKI FLUIDA FAATY ALKOHOL","authors":"Dianita Wardani","doi":"10.35143/elementer.v9i1.5903","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5903","url":null,"abstract":"Tangki TK-7201, TK-7202, dan TK-7203 berisikan Faaty Alkohol pada plant industri Gresik diketahui belum memiliki alat proteksi terhadap kebakaran serta pada tangki memiliki beberapa resiko tinggi seperti kebocoran atau faktor external yang memungkinkan terjadinya kebakaran. Sehingga dibuthkan media foam untuk pemadaman kebakaran pada permukaan fluida dalam tangki sesuai standar NFPA 11 (Standard for Low Medium and High Expansion Foam) dan didukung dengan media air untuk water spray system sesuai standar NFPA 15 (Standard for water spray system) yang berguna untuk pendinginan serta pencegahan dari kerusakan akibat kebakaran pada tangki lainnya dan diharapkan tidak ikut terbakar. Modeling dimensi nozzle water spray atau sprinkler mengunakan ANSYS dipilih nozzle water spray dengan luaran 9 mm untuk sistem proteksi. Pada desain sistem perpipaan foam mengunakan diameter pipa utama 6 inch dan 4 inch untuk pipa cabang. Pada desain instalasi water spray mengunakan mengunakan pipa ukuran 10 inch untuk pipa utama, ukuran 6 inch untuk pipa cabang, dan ukuran 3 inch untuk pipa pembagi. Instalasi ini menggunakan 39 water nozzle / sprinkler dengan jarak antar nozzle adalah 2 meter. Total headloss pada instalasi water spray didapatkan nilai sebesar 60,18m. Total headloss pada instalasi foam didapatkan nilai sebesar 55,85 m. Pada instalasi sprinkler didapatkan daya pompa hasil perhitungan sebesar 110,97 kW. Pada instalasi foam didapatkan daya pompa hasil perhitungan sebesar 6,27 kW. Pompa yang digunakan pada desain yaitu Ebara 65 x 50 FSJA untuk sistem pemadam foam dan Ebara 250 x 200 FS4NA untuk sistem water spray.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"152 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127315398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rancang Bangun Sepeda Listrik Menggunakan Motor DC Brushless","authors":"Tianur Tianur","doi":"10.35143/elementer.v9i1.5933","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5933","url":null,"abstract":"Along with the times, technology in the transportation sector continues to develop rapidly. This is marked by the emergence of vehicles that are modern and practical to use. One example is an electric bicycle. electric bikes are a new option in development and alternative transportation. Because of these problems, a tool was made that can turn an ordinary bicycle into an electric bicycle. So that bicycle owners simply and easily turn ordinary bicycles into electric bikes. This tool uses a battery as its energy source and has a speed regulator that is placed on the bicycle handlebar. Which functions as a PWM regulator via a pulse generator. When a bicycle user turns the gas trhotle on the bicycle handlebar, the brushless motor at the bottom near the bicycle pedal attached to the rear tire will receive a PWM signal. When the gas throttle is pulled, the electronic speed control will activate, so the brushless motor rotates. And a brushless motor drives the rear wheels of the bike. This simple electric bicycle has a maximum speed of 27.1 km / h with a maximum rider weight of 100 kg.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129800915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rancang Bangun Alat Pemantau Dan Kontrol Kondisi Ruangan Green House Untuk Budidaya Tanaman Stroberi Berbasis Internet of Things (IoT)","authors":"Jonshon Tarigan","doi":"10.35143//elementer.v9i1.5877","DOIUrl":"https://doi.org/10.35143//elementer.v9i1.5877","url":null,"abstract":"Strawberries are horticultural crops that can grow well in subtropical regions. Strawberries require cool environmental conditions with temperatures between 17°C-20°C and humidity between 80% -90%. Cultivating strawberries in the tropics is a challenge in itself because of the temperature and humidity in this area. One way to cultivate strawberry plants in the tropics is to use a Green House. Green House is designed to maintain the temperature and humidity according to the needs of the strawberry plants. This study aims to create a system monitoring and controlling greenhouses using the internet of things. Users can monitor and control the condition of the Green House via an Android smartphone with the Blynk application. When the air temperature and humidity values are in the Green House, the system will work to readjust the temperature and humidity in the Green House. This system uses ESP32 as the control center and a DHT22 sensor to measure air temperature and humidity. Based on the results of the design and performance analysis of the tool, the accuracy of the air temperature gauge is 99.52% and the air humidity is 99.29%. The system successfully controlled the temperature and humidity in the Green House room for 23 days of testing.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126767264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Monitoring Pergeseran Tanah Tapak Tower Transmisi PT\u0000(PLN) Persero Dengan Menggunakan SMS Sebagai Notifikasi\u0000Peringatan","authors":"Wahyuni Khabzli","doi":"10.35143/elementer.v9i1.5973","DOIUrl":"https://doi.org/10.35143/elementer.v9i1.5973","url":null,"abstract":"Landslides are one of the causes of the collapse of the transmission tower of PT PLN (Persero) which caused power outages, therefore monitoring the shifting of the transmission tower tread is very necessary so that power outages due to the collapsed tower can be anticipated faster. In this study the authors made a study to monitor tower shifts by using Ultrasonic sensors and LVDT sensors (Linear Variable Differential Transducer), Ultrasonic sensors function to detect shifts from towers and LVDT sensors function to detect shifts from the left and right tread tower ground. In this research, there are three main sensors, namely 2 LVDT sensors and one Ultasonic sensor - each sensor is placed in a safe position from interference and has the least possibility of being affected by landslides, Ultrasonic sensors read the tower shift towards the sensor mounted on the center side and LVDT sensors read the shift ground tread tower on the left and right side of the tower. The sensor sends the signal then is converted by the ATMega 8535 microcontroller into a millimeter unit for LVDT sensors and centimeter meter for Ultrasonic sensors. To find out the changes that occur in the tower and tower ground. Every change in distance or the occurrence of a microcontroller shift sends event data in the form of tower numbers and tower shift distances from each sensor reading using SMS (Short Message Service) communication. The installed LVDT sensor has a reading accuracy rate of 98,05% for LVDT 1 and 98,98% for LVDT 2 in millimeters and an Ultrasonic sensor has a reading accuracy rate of 99,44% in centimeters.","PeriodicalId":308479,"journal":{"name":"Jurnal Elektro dan Mesin Terapan (ELEMENTER)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129562377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}