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INTERACTION OF MOLTEN URANIUM WITH ELECTRICAL PENETRATING TUBE OF A BOILING WATER REACTOR DURING SEVERE ACCIDENT Rindi Wulandari; Sutanto Sutanto; Asril Pramutadi Andi Mustari
GANENDRA Majalah IPTEK Nuklir Volume 23 Nomor 2 Juli 2020
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17146/gnd.2020.23.2.5816

Abstract

INTERACTION OF MOLTEN URANIUM WITH ELECTRICAL PENETRATING TUBE OF A BOILING WATER REACTOR DURING SEVERE ACCIDENT. Fukushima accident was the first severe accident of a BWR type which the core was melted leading to RPV failure at the bottom head. Regarding its complex structures of the bottom head, the scheme of failure is different from that of previous reactor severe accidents that ever happened (i.e. TMI-2 and Chernobyl accidents). There is a lot of penetration tubes through the bottom head leading to a complex interaction between corium and the structures. Eutectic reaction is possible to happen due to high temperature leading to a rapid failure of the RPV. Therefore, it is important to understand the phenomenon of interaction between corium and the structures. In this study, an interaction between molten uranium and structure of electrical tube, one of the penetration tubes, was analyzed by using MPS-LER method. Fluid dynamics of the MPS-LER simulation was validated by experiments of fluid flow by using water and oil.Calculation results of the fluid flow showed a good agreement with that of experiments.The MPS-LER was applied to calculate the penetration rate of molten uranium which flowed through the wall of the electrical tube at the bottom head of a BWR. The penetration rate was high due to eutectic reaction. The rate achieved 555.56 µm/s. Conservatively, it took less than 1 minute of time for the molten uranium to melt the tube wall with a thickness of 1.232 cm.
Pengembangan E-MODUL Fisika Dasar untuk Pembelajaran Online Berbasis Android Mobile Rindi Wulandari
PAKAR Pendidikan Vol 18 No 2 (2020): Published in July 2020
Publisher : Pusat Pengembangan Ilmiah dan Penelitian Mahasiswa Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pakar.v18i2.198

Abstract

WHO (The World Health Organization) has declared Covid-19 a pandemic that has posed a contemporary threat to humans. This pandemic has succeeded in making mass decommissioning of activities, including activities in the field of education, this has led to a massive transition in the world of higher education to promote online education. Module is one of the teaching materials that can be used in learning and can support the effectiveness of the learning process. The purpose of this research is to create basic physics e-modules in order to access learning materials easily, efficiently, and fun based on android. This stage of research is preliminary study, desaign development, and testing. The results of this study in the form of e-modules and feasibility test surveys on a limited scale, e-modules that have been made show a fairly good feasibility results.
Perencanaan Pembangunan Posko Tanggap Darurat Covid-19 di Kelurahan Perbutulan Kecamatan Sumber Kabupaten Cirebon Rindi Wulandari; Aditia Alisyah
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 11, No 1 (2021): Juli 2021
Publisher : LPPM UNINUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30999/jpkm.v11i1.1232

Abstract

Pandemi Covid-19 telah memasuki Indonesia pada awal tahun 2020. Berbagai langkah dilakukan untuk mengurangi resiko penyebaran pandemi Covid-19 termasuk beberapa kebijakan pemerintah. Salah satunya memprioritaskan penggunaan dana desa dan memberikan stimulus bantuan penanganan covid-19. Kegiatan pengabdian masyarakat ini bertujuan untuk merenanakan design dan RAB pembuatan posko tanggap darurat Covid-19 di Kelurahan Perbutulan Kecamatan Sumber Kabupaten Cirebon. Hasil pelaksanaan pengabdian berupa design gambar dan rancangan RAB serta peninjauan lokasi yang akan dibangun posko tanggap darurat Covid-19. Diharapkan dengan adanya kegiatan pengabdian masyarakat ini dapat menjadi bahan pertimbangan bagi pihak Kelurahan Perbutulan dalam memanfaatkan dana desa untuk mendukung program pemerintah yakni memutus rantai penyebaran virus Covid-19.
Rancang Bangun Pengukur Suhu Tubuh Berbasis Arduino Sebagai Alat Deteksi Awal Covid-19 Rindi Wulandari
Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2020: Prosiding SNFA (Seminar Nasional Fisika dan Aplikasinya) 2020
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prosidingsnfa.v5i0.46610

Abstract

Abstract: Maintaining health is very important for life especially in the current Covid-19 pandemic. One of the protocols imposed by the government for people who do in public spaces or open facilities is to check body temperature. In this study, arduino-based body temperature gauges were designed to have reminder alarms if the body temperature was above 37.30 and connected to a computer device via bluetooth. This body temperature gauge utilizes the DS18B20 sensor to measure temperature in celsius (0C). Body temperature data is also displayed on the 16x2 (cm) LCD found on the appliance. The test results of body temperature measuring instruments compared to thermo guns and have a deviation range of 1.16% - 2.02%. This body temperature gauge is expected to be installed in public places that need to conduct checks on the people who will be active in the room, the operator can stand at the control table so that it does not come into direct contact with the community.Abstrak: Menjaga kesehatan merupakan hal yang sangat penting bagi kehidupan terutama di masa pandemi Covid- 19 sekarang. Salah satu protokol yang diberlakukan oleh pemerintah bagi masyarakat yang berkegiatan di ruang umum atau fasilitas terbuka adalah memeriksa suhu tubuh. Dalam penelitian ini dibuat rancang bangun alat pengukur suhu tubuh berbasis arduino yang memiliki alarm pengingat jika suhu tubuh berada diatas angka 37.30 dan terhubung ke perangkat komputer melalui bluetooth. Alat pengukur suhu tubuh ini memanfaatkan sensor DS18B20 untuk mengukur suhu dalam satuan celcius (0C). Data suhu tubuh juga ditampilkan pada LCD 16x2 (cm) yang terdapat pada alat. Hasil pengujian alat ukur suhu tubuh dibandingkan dengan thermo gun dan memiliki rentang penyimpangan 1.16% - 2.02%. Alat pengukur suhu tubuh ini diharapkan dapat dipasang di tempat-tempat umum yang membutuhkan untuk melakukan pemeriksaan terhadap masyarakat yanga akan beraktifitas diruangan tersebut, operator dapat berdiri di meja kendali sehingga tidak kontak langsung dengan masyarakat.
AUTOMATIC DOOR SIMULATOR DESIGN BASED ON ARDUINO UNO USING PROTEUS SOFTWARE Rindi Wulandari
Journal of Green Science and Technology Vol 5, No 2 (2021): VOL 5, NO 2 (2021): JOURNAL OF SCIENCE AND TECHNOLOGY VOL. 5 NO. 2 SEPTEMBER 202
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v5i2.5710

Abstract

In this pandemic era, doors in public places are one of the objects that can be an intermediary for the transmissionof the Covid-19 virus. That's why various kinds of developments in the field of technology are designed to provide an alternative in avoiding the transmission of the Covid-19 virus through doors in public places.The purpose of this study is to design an Arduino Uno-based automatic door simulator using Proteus software. The sensor used in this system is a PIR (Passive Infra Red) sensor. The way the system works is that when the PIR sensor detects someone's movement, the Data OUT Pin will be HIGH. Because this pin is connected to the Arduino, it will detect this HIGH Signal and detect that someone is approaching the door and will provide input to the DC motor, then the DC motor will move to the right or left to pull the door. From the simulation results, the delay between sensor readings and the movement of the DC motor is about 3 to 5 seconds.
DESIGN PROTOTYPE OF SMART DETECTOR ENVIRONMENT SYSTEM ON SEMICONDUCTOR DETECTOR STORAGE (HPGE) Rindi Wulandari
Journal of Green Science and Technology Vol 6, No 2 (2022): JOURNAL OF GREEN SCIENCE AND TECHNOLOGY VOL.6 NO.2 SEPTEMBER 2022
Publisher : FAKULTAS TEKNNIK UNIVERSITAS SWADAYA GUNUNG JATI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33603/jgst.v6i2.7067

Abstract

The HPGe detector is a device that should be cooled when used and can be operated at room temperature. For this reason, it is necessary to monitor the temperature and humidity in the HPGe detector storage area to produce optimal performance. This research was focused on designing a Smart Detector Environment System as a means of monitoring and automatic control of temperature and humidity in the HPGe detector storage. Temperature and humidity detection in the system was carried out by the DHT22 sensor connected to Arduino Uno and the motor driver module. Arduino uno gave the command "00000011" to detect the temperature in the chamber, and "00000101" to start the detection of humidity in the chamber, then the data generated by the DHT22 sensor would be displayed and processed by LabVIEW, which was used to move the fan to regulate the temperature and humidity in the system with the condition that the lamp on the chamber was left on (manual).  The results obtained were in the form of a design and automatic control of temperature and humidity monitoring and control in the HPGe detector storage whose temperature could be adjusted automatically according to the needs of the HPGe detector.
Rancanga Bangun Sistem Irigasi Otomatis Berbasis RTC Menggunakan Solar Panel Rindi Wulandari
IJEIS (Indonesian Journal of Electronics and Instrumentation Systems) Vol 12, No 2 (2022): Oktober
Publisher : IndoCEISS in colaboration with Universitas Gadjah Mada, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijeis.78422

Abstract

Desa Sinarancang Kecamatan Mundu, Kabupaten Cirebon adalah salah satu desa penghasil pertanian terbaik di Kecamatan Mundu. Agriculture is becoming more productive today as a result of advances and new technologies such as sensors, devices, and information technology, which help generate a large amount of data penyiraman secara manual tersebut dirasa kurang efesien, dikarenakan membutuhkan banyak waktu, tenaga, finansial berupa uang, dan pemilik tanaman tidak bisa meninggalkan tanaman dalam kurun waktu yang lama. Oleh karena itu Sistem Irigasi Otomatis berbasis solar panel dibuat dan diimplementasikan. Pada alat ini digunakan RTC sebagai alat hitung waktu. RTC yang digunakan adalah jenis RTC DS 1307 compitable Arduino. Solar Panel digunakan sebagai catu daya pengganti PLN. Komponen sistem terdiri dari solar panel, control box, pompa, dan keran nozzle. Sistem sudah dilakukan pengujian dan tegangan untuk mengaktifkan pompa adalah sekitar 12 volt. Selang waktu untuk mengalirkan air pada keran nozzle saat pompa sudah aktif sekitar 6- 10 second. Sistem diimplementasikan dilahan kering dengan memanfaatkan sumber air disekitar lahan yang berasalal dari dataran yang lebih tinggi sehingga menjadi efektif untuk sistem penyiraman.
Aplikasi Teknologi PETIS Berbasis Solar Panel di Desa Sinarancang Kecamatan Mundu Kabupaten Cirebon Rindi Wulandari; Taryo; Nurdiyanto; Nunu Nugraha
Jurnal Pengabdian Nasional (JPN) Indonesia Vol. 4 No. 1 (2023): Januari
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LPPM) AMIK Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jpni.v4i1.91

Abstract

BUMDes Rancang Jaya has several activities such as a cafe business unit, village water management business unit, agricultural product management business unit, handicraft and industrial business unit. On agricultural land, there are several obstacles, one of which is the lack of resources to manage agricultural land. Automating plantation irrigation activities can change the paradigm from a manual and static system to a more dynamic system that leads to increased water use efficiency and leads to higher production yields. Application of solar panel-based PETIS Technology applications to increase the efficiency and effectiveness of farmers in managing their crops. Especially in surface water utilization systems as irrigation water and in the consistency of giving water to plants because PETIS Technology uses the RTC system, which is automatic watering based on the desired time based on solar panels. The method used is advocacy. Starting with conducting surveys and observations to analyze partner problems, assembling and testing tools, installing tools, and providing community assistance. Solar panel-based PETIS technology can be utilized for an automatic watering system on agricultural land in Sinarancang Village, which has a high level of efficiency because the electricity comes from solar panels that are free of charge.
Rancang Bangun Drone Flamethrower Alat Pembakar Layang-Layang Pada Saluran Transmisi Berbasis Arduino Taryo; Rindi Wulandari; Muhamad Riyad Ariwibowo; M. Angga Priyanto
G-Tech: Jurnal Teknologi Terapan Vol 8 No 1 (2024): G-Tech, Vol. 8 No. 1 Januari 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/gtech.v8i1.3747

Abstract

Bermain layang-layang disekitar saluran transmisi dilarang, Hal itu tertuang dalam PerMen ESDM Nomor 02 Tahun 2019 tentang Ruang Bebas dan Jarak Bebas Minimum yang diijinkan pada Saluran Udara Jaringan Listrik. Untuk membersihkan layang-layang dengan cara konvensional mengharuskan tim pemeliharaan menggunakan tongkat pembersih sampah yang menyangkut di jaringan konduktor atau cara tertentu lainnya. Alat tersebut berguna untuk membakar sampah layang-layang yang tersangkut pada saluran transmisi yang pengendaliannya menggunakan dua Controller yaitu transmitter dan receiver dengan arduino sebagai pusat kontrol. Hasil dari penelitian ini menunjukan bahwa berdasarkan hasil pengujian, hingga jarak 20 meter drone flamethrower ini dapat mengirim dan menerima perintah sesuai dengan yang diinginkan dan berhasil membakar layang-layang pada jaringan sistem tenaga listrik dengan ketinggian 17 meter dan rata-rata waktu pembakaran untuk membakar 1 layang-layang selama 13 detik. Maka dapat disimpulkan bahwa perancangan alat drone flamethrower dapat berjalan dengan baik.
RANCANG BANGUN HEALTH MONITORING SYSTEM BERBASIS INTERNET OF THINGS (IoT): ESP8266 DAN BLYNK Juju Juhaeriyah; Edo Agung N; Rindi Wulandari
bit-Tech Vol. 6 No. 2 (2023): bit-Tech
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/bt.v6i2.1036

Abstract

Health monitoring is important for living creatures. There are many things that are important factors in the health of living creatures, especially humans, including heart rate, body temperature and oxygen saturation. IoT technology is very helpful in the development of health technology so that it becomes possible to monitor patient health in real time and patient emergency information can be accessed easily. This research also aims to design an Android-based heart rate monitoring system using ESP8266 as a microcontroller. The sensor used is Max30102. The research method used is applied research, with experimental research methods. The research stages carried out were literature study, software design, hardware design, system testing, and analysis. The results of the research are the design of a patient health monitoring tool with three measured indicators, namely the patient's heart rate, body temperature and oxygen levels. The system can monitor in real time based on Internet of Things and can be accessed by Android and iOS. From the study results, it was found that the Android-based health monitoring system has an accuracy rate of 97.63% and it can be said that the system can be used for patient measurements. With details, 96.71% is the accuracy level for measuring heart rate, 96.45% accuracy level for measuring oxygen levels in the patient's body, and 99.75% accuracy level for measuring patient temperature.