Multitek Indonesia最新文献

{"title":"APLIKASI PENDETEKSI LEVEL DAN SUHU PERTALITE BERBASIS IOT (INTERNET OF THINGS) MENGGUNAKAN THINGSPEAK","authors":"Meisya Fujiyanti Muhara","doi":"10.24269/MTKIND.V15I1.3067","DOIUrl":"https://doi.org/10.24269/MTKIND.V15I1.3067","url":null,"abstract":"Abstrak Keterlambatan pengisian ulang tangki pendam disebabkan masih digunakannya sistem pengukuran manual yang membuat pekerja harus mengukur persediaan BBM terlebih dahulu. Dengan demikian diperlukan sistem monitoring dengan menggunakan komputer dan internet agar mengefisienkan waktu. Thingspeak adalah salah satu sistem monitoring dari Internet of Things yang tidak memiliki noise pada saat pengirimannya. Hasil grafik Thingspeak diambil dari data Arduino IDE melalui NodeMCU ESP8266, sistem harus selalu berada pada jangkauan wifi agar dapat berjalan dengan baik dan benar. Tampilan hasil pada Arduino IDE dan hasil yang diperoleh dari sensor ultrasonik dan sensor suhu menunjukan hasil yang sama, yang disebabkan tidak adanya noise atau  error. Suhu yang dihasilkan sensor LM35 memperoleh data rata-rata pada suhu 26.38°C, data yang ditampilkan pada sistem Thingspeak dan Arduino IDE memiliki nilai yang sama. Abstract The delay in refilling the buried tank is due to the use of a manual measurement system which requires workers to first measure the supply of fuel. Thus a monitoring system using computers and the internet is needed in order to save time. Thingspeak is a monitoring system from the Internet of Things that has no noise during delivery. The results of the Thingspeak graph are taken from the Arduino IDE data through the NodeMCU ESP8266, the system must always be within wifi range so that it can run properly and correctly. The results display on the Arduino IDE and the results obtained from the ultrasonic sensor and temperature sensor show the same results, due to the absence of noise or error. The temperature produced by the LM35 sensor obtains an average data at a temperature of 26.38 ° C, the data displayed on the Thingspeak and Arduino IDE systems has the same value.","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43561658","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":"THE EFFECT OF FRYING TEMPERATURE AND TIME IN VACUUM FRYING MACHINE ON THE IMPROVEMENT OF THE QUALITY OF APPLE CRISPS","authors":"Nely Ana Mufarida, A. Abidin, Fitriana Fitriana","doi":"10.24269/mtkind.v15i1.3146","DOIUrl":"https://doi.org/10.24269/mtkind.v15i1.3146","url":null,"abstract":"The frying temperature in the frying process using a vacuum frying machine can be designed according to your needs. Usually used for frying at low temperatures so that damage to aroma and taste can be avoided. The purpose of this study was to analyze the effect of temperature and frying time on a vacuum frying machine on improving the quality of apple chips so that apple chip products can be obtained according to consumer desires. The temperatures used for frying are 50, 55, and 60oC with time variations of 40, 50, and 60 minutes. This aims to avoid changes in color and taste to obtain optimal quality apple chips. The water content of fried apples is 85% - 86.5%. The maximum capacity of the frying tube is 2 kg with a requirement of 12 liters of cooking oil. The main processed ingredients used in this study were manalagi varieties of apples. The resulting chips have a delicious, sweet, crispy texture, and have a yellow color. The higher the temperature and the longer the frying time, the air content tends to decrease. This is caused by higher heat which causes greater evaporation of air from inside the material. The results of the fried ingredients are more crunchy because evaporation at a low boiling point allows more air content to evaporate.","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43476214","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":"ANALISIS USABILITY APLIKASI LAPORAN LABA RUGI BERBASIS WEB MENGGUNAKAN METODE SYSTEM USABILITY SCALE","authors":"Jamilah Karaman, Adi Fajaryanto Cobantoro","doi":"10.24269/mtkind.v15i1.3126","DOIUrl":"https://doi.org/10.24269/mtkind.v15i1.3126","url":null,"abstract":"","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47417320","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 SISTEM INFORMASI BUKU TAMU PADA DINAS PEMUDA, OLAHRAGA DAN PARIWISATA KOTA BALIKPAPAN DENGAN METODE PERSONAL EXTREME PROGRAMMING","authors":"Ahmad Maulana Fikri, I. P. D. Arthawan Sugih Prabowo","doi":"10.24269/MTKIND.V14I2.2568","DOIUrl":"https://doi.org/10.24269/MTKIND.V14I2.2568","url":null,"abstract":"ABSTRAK Pada Dinas Pemuda, Olahraga dan Pariwisata (DPOP) Kota Balikpapan, teknologi informasi kerap digunakan pada kegiatan operasional pegawai. Namun, tidak semua kegiatan operasional pegawai telah diakomodasi oleh teknologi informasi. Salah satunya yaitu proses administrasi tamu yang datang ke DPOP Balikpapan yang masih menggunakan buku tamu. Waktu yang cukup lama dapat terjadi dalam proses perekapan tiap bulannya dari pihak DPOP Balikpapan. Selain itu, human error juga kemungkinan besar akan terjadi jika proses administrasi tamu masih berbasis kertas karena proses perekapan data secara manual. Oleh karena itu, dilakukan penelitian di DPOP Balikpapan dengan merancang dan membangun Sistem Informasi Buku Tamu (SI-KUTA) berbasis website khusus untuk DPOP Balikpapan dengan metode Personal Extreme Programming (PXP). Metode  PXP memungkinkan terjadinya komunikasi yang baik antara pengembang laman web dengan klien. Implementasi metode PXP sangat cocok digunakan pada penelitian ini dikarenakan kebutuhan klien yang dapat berubah sewaktu-waktu seiring dengan jalannya proses pengembangan sistem. Hasil dari penelitian ini berupa implementasi dari aplikasi SI-KUTA yang dapat digunakan oleh pegawai DPOP Balikpapan. Dengan dibuatnya aplikasi SI-KUTA, pegawai DPOP Balikpapan khususnya Subbagian Umum dapat dengan mudah merekap, menghitung dan menyimpan data-data pengunjung DPOP Balikpapan. ABSTRACT At the Balikpapan City Youth, Sports and Tourism Office (DPOP), information technology is often used in employee operational activities. However, not all employee operational activities have been accommodated by information technology. One of them is the administration process of guests coming to DPOP Balikpapan who are still using guest books. This certainly requires quite a long time in the recording process each month from the DPOP Balikpapan. In addition, human error is also likely to occur if the guest administration process is still paper-based due to the manual data recording process. Therefore, research was conducted at DPOP Balikpapan by designing and building a Website-based Guest Book Information System (SI-KUTA) specifically for DPOP Balikpapan using the Personal Extreme Programming (PXP) method. The PXP method allows for good communication between the website developer and the client. The implementation of the PXP method is very suitable to be used in this study because the client's needs can change at any time along with the course of the system development process. The results of this research are the implementation of the SI-KUTA application that can be used by Balikpapan DPOP employees. With the application of SI-KUTA, DPOP Balikpapan employees, especially the General Subdivision, can easily recap, calculate, and store DPOP Balikpapan visitor data .","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46648300","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 SENSOR NODE PADA WIRELESS SENSOR NETWORK UNTUK MENDETEKSI KEBAKARAN DI LINGKUNGAN PERUMAHAN","authors":"Rima Riyanti","doi":"10.24269/MTKIND.V14I2.3060","DOIUrl":"https://doi.org/10.24269/MTKIND.V14I2.3060","url":null,"abstract":"ABSTRAK Kebakaran merupakan bencana yang tidak dapat diprediksi dan dapat terjadi kapan saja. Ketika kebakaran terjadi, sebelum satuan pemadam kebakaran tiba di lokasi kejadian, biasanya upaya pemadaman dilakukan oleh warga setempat dengan peralatan seadanya. Untuk meminimalisir terjadi dan menyebarluasnya kebakaran, maka dibuatlah sebuah Wireless Sensor Network sebagai Pendeteksi Kebakaran. Penelitian ini berfokus pada node sensor untuk mengimplementasikan WSN. Penelitian ini menunjukkan pengimplementasian sensor api KY-026 sebagai pendeteksi api, sensor gas MQ-7 sebagai pendeteksi asap, dan sensor suhu DHT22 sebagai pendeteksi suhu udara. Hasil akhir dari penelitian ini adalah setiap sensor memiliki karakteristik yang berbeda. Sensor suhu DHT22 bersifat linear, memiliki nilai sensitivitas 3,9855, dan repetabilitas sebesar 99,11%. Perbandingan nilai suhu antara nilai yang terukur pada sensor dengan alat standar tipe HTC-2 memiliki error sebesar 0,26%. Pada sensor gas, nilai sensitivitas yang dihasilkan ketika kondisi tidak ada asap yaitu 0,01 dan kondisi ada asap yaitu 0,002. Nilai repetabilitas ketika tidak ada asap yaitu 58,4% dan kondisi ada asap yaitu 79,8%. Pada sensor api, nilai sensitivitas yang dihasilkan dari sumber api balok kayu yaitu 0,0029 dan sumber api lilin yaitu 0,0567. Nilai repetabilitas yang dihasilkan sumber api balok kayu yaitu 90,5% dan sumber api lilin yaitu 85,1%. ABSTRACT Fire is a disaster that cannot be predicted and can happen at any time. When fires occur, before the fire department arrives at the scene, usually a fire suppression attempt is made by local residents with makeshift equipment. To minimize the occurrence and spread of fires, acreated Wireless Sensor Network was as a Fire Detection. This research focuses on instrumentation systems to implement WSN. This research shows the implementation of the KY-026 fire sensor as a fire detector, the MQ-7 gas sensor as a smoke detector, and the DHT22 temperature sensor as a temperature detector. The result of this research is that each sensor has different characteristics. DHT22 temperature sensor is linear, has a sensitivity value of 3,9855, and repeatability of 99,11%. Comparison of the temperature value between the measured value on the sensor with the standard type HTC-2 device has an error of 0,26%. In the gas sensor, the sensitivity value that is produced when the condition is no smoke is 0,01 and the condition of the smoke is 0,002. The value of repeatability when the condition is no smoke is 58,4% and the condition of smoke is 79,8%. In the fire sensor, the sensitivity value generated from the wood beam fire source is 0,0029 and the candle fire source is 0,0567. The value of repeatability produced by wood beam fire sources is 90,5% and the candle fire source is 85,1%.","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41474877","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":"SHARING DEVICES DAN DOKUMEN MELALUI WIRELSS LAN DAN CLOUD CONNNECTION UNTUK MENDUKUNG PHYSICAL DISTANCING PADA MASA PANDEMIK COVID-19","authors":"Jumail Jumail","doi":"10.24269/MTKIND.V14I2.2972","DOIUrl":"https://doi.org/10.24269/MTKIND.V14I2.2972","url":null,"abstract":"ABSTRAK Physical distancing merupakan salah satu metode yang dianjurkan oleh Pemerintah Indonesia dan juga World Health Organization (WHO) untuk memutus penyebaran Covid-19. Bagaimanapun banyak masyarakat masih mengabaikan anjuran ini baik ditempat-tempat umum, transportasi umum, maupun dilingkungan kerja baik di wilayah perkotaan maupun di pedesaan, baik di lingkup swasta maupun pemerintah sendiri. Dari penelitian yang telah di lakukan di wilayah kantor pemerintah desa Kubangsari, Kabupaten Brebes, Jawa Tengah physical distancing sulit dilakukan selain ruang kerja yang terbatas juga kebutuhan akan penggunaan devices dalam bekerja seperti komputer, printer, dan juga distribusi dokumen mengharuskan pengguna untuk terkoneksi langsung baik antar pengguna maupun pengguna dengan devices dan document secara fisik. Ketersediaan jaringan wifi / wireless dilingkungan kantor pemerintah desa memungkinkan untuk dilakukan instalasi jaringan LAN untuk sharing devicse dan cloud connection untuk distribusi dokumen sehingga pengguna dilingkungan kantor pemerintah desa tidak perlu untuk berkumpul saat mencetak dokumen dan mengkoneksikan devices sehingga physical distancing dapat di terapkan. 5 dari 8 pegawai dikantor kepala desa Kubangsari, Kecamatan Ketanggungan, Kabupaten Brebes, yang terlibat dalam survey telah memberikan feedback bahwa 100% aktivitas kerja melibatkan pembuatan dan distribusi dokumen, dan 80% pekerjaan memerlukan koneksi pada perangkat komputer dan printer, jadi kontak fisik antara staf (manusia), dokumen dan perangkat (devices) akan selalu terjadi setiap hari. Melalui penelitian ini disampaikan bagaimana instalasi devices pada jaringan LAN dan document sharing melalui pemanfaatan cloud connection dilakukan untuk mendukung physical distancing mencakup setup infrastruktur jaringan LAN dan cloud connection. ABSTRACT Physical distancing is one of the methods recommended by the Government of Indonesia and the World Health Organization (WHO) to stop the spread of Covid-19. However, many people still ignore this recommendation both in public places, public transportation, and in the work environment, both in urban and rural areas, both in the private and government spheres. Based on the research conducted at Kubangsari village government office, Brebes, Central Java, physical distancing is difficult to apply due to limited workspace and the need to use computers and printers and document distribution. It requires users to connect directly between users, users with physical devices, and documents. The availability of a wireless network within the village government office allows for the installation of a LAN network for sharing devices via a cloud connection for document distribution so that users in the village government officials do not need to gather when printing documents and connecting devices so that physical distancing can be applied effectively. 5 out of 8 employees at the head office of Kubangsari village, Ketanggungan District, Brebes Rege","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43993981","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":"OPTIMASI SINGLE RESPONSE PROSES RESISTANCE SPOT WELDING PADA PENGGABUNGAN BAJA BEDA MATERIAL MENGGUNAKAN METODE EKSPERIMENTAL TAGUCHI","authors":"S. Sukarman, Amri Abdulah","doi":"10.24269/MTKIND.V14I2.3076","DOIUrl":"https://doi.org/10.24269/MTKIND.V14I2.3076","url":null,"abstract":"ABSTRAKArtikel ini menyajikan analisis eksperimental pengoptimalan resistance spot welding (pengelasan titik resistansi) yang telah berhasil dilakukan menggunakan mesin spot welding dengan sistem gaya penekan pneumatik (pressure force system/ PFS) pada kedua elektrodanya. Optimasi dilakukan dengan mengabungkan baja beda material galvanis (SGCC-JIS G 3302) dengan baja karbon rendah SPHC (JIS 3131). Baja SGCC merupakan pelat lembaran SPCC-SD (JIS 3141) yang dilapisi seng (Zn) dengan ketebalan sekitar 18.5 mikron. Lapisan seng dengan ketebalan yang cukup signifikan, menyebabkan penurunan sifat mampu lasnya. Penelitian ini bertujuan untuk mendapatkan hasil pengujian tegangan tarik geser (shear-tensile strength) tertinggi dari parameter resistance spot welding  yang ditentukan. Penelitian menggunakan metode Taguchi 4-variabel dan kombinasi level eksperimen. Kombinasi level ekperimen yang digunakan yaitu, 2-level untuk parameter pertama dan 3-level untuk tiga parameter lainnya. Hasil optimasi didapatkan kekuatan geser-tarik tertinggi pada 5758.96 N yang dicapaai pada squeeze time-22 cycles, welding current-27 kA, welding time-0.6 detik dan holding time-15 cycles. Pengaruh yang signifikan didapat pada welding current dengan delta S / N ratio sebesar 1.21. Parameter signifikan lainya berturut-turut adalah welding time, squeeze time, and holding time. Nilai delta S / N rasio masing-masing adalah  0,95, 0,65 dan 0,19. ABSTRACTThis study presents an experimental optimization of resistance spot welding performed using a pneumatic force (electrode) system (PFS) machine. Optimization was carried out to joint the galvanized steel (SGCC  JIS G 3313) with low-carbon steel (SPHC JIS 3131). SGCC is an SPCC-SD (JIS 3141) plate coated zinc (Zn) with a thickness of about 18.5 microns. A zinc coating, with significant thickness layers, causes the weldability of the metal to decrease. This study aims to obtain the tensile shear strength test results from the specified resistance spot welding parameters. The research used the Taguchi method using 4-variables and a combination of 2-level experiments. This research's practical level is 2-levels for the first parameter and 3-levels for the other parameters. The Taguchi experiment's optimization achieved the highest shear-tensile at 5758.96 N. This works performed at 22 cycles of squeeze time, 27 kA welding current, and welding time of 0.6 seconds and 15 cycles of holding time. The S / N ratio analysis results show that the welding current is the most significant to the outcome and followed by welding time, squeeze time, and holding time. The S / N delta ratio values are 1.21, 0.95, 0.65 and 0.19, respectively. ","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48936257","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":"ANALISA KOROSI ATMOSFERIK BAJA KARBON RENDAH DI KECAMATAN MEDAN BELAWAN","authors":"A. Affandi, Syifaul Huzni, A. M. Siregar, C. Siregar, A. R. Nasution, Iqbal Tanjung, S. Fonna","doi":"10.24269/MTKIND.V14I2.2841","DOIUrl":"https://doi.org/10.24269/MTKIND.V14I2.2841","url":null,"abstract":"ABSTRAK Korosi atmosferik sangat dipengaruhi oleh kondisi topografi dan iklim atau lingkungan, seperti temperatur, kelembaban, dan kandungan bahan kimia dalam udara sangat menentukan laju korosi. Kecamatan Medan Belawan adalah daerah pesisir Kota Medan  yang berbatasan langsung pada Selat Malaka. Kecamatan Medan Belawan akan difokuskan sebagai kawasan industri (industrial park) dan juga jasa penunjang aktivitas pelabuhan seperti pergudangan, pusat perkantoran, galangan kapal, dan industri perikanan.. Saat ini jembatan dan bangunan-bangunan konstruksi atau komponen logam seperti seng, tembaga serta besi-baja sudah terserang oleh korosi. Objektif dari penelitian ini adalah untuk melakukan analisis laju korosi atmosferik baja karbon rendah di kecamatan medan belawan di tiga titik lokasi dengan notasi yaitu  A, B, dan C. Spesimen uji yang digunakan pada penelitian ini adalah baja bentuk strip, baja segi empat, dan baja tulangan dengan proses pengukuran laju korosi mengikuti standart ASTM G-50 dan ASTM G-1. Pengukuran laju korosi dilakukan selama dua belas bulan, adapun hasil pengukuran laju korosi rata-rata di lokasi A : 0,573 mpy, laju korosi rata-rata di lokasi B : 0,604 mpy, dan laju korosi rata-rata lokasi C : 0.262 mpy. Maka dapat disimpulkan laju korosi baja karbon rendah di Kecamatan Medan Belawan dalam kategori outstanding dan sangat aman digunakan untuk kebutuhan konstruksi di lokasi tersebut. ABSTRACT Atmospheric corrosion is highly influenced by topographical and climatic conditions or environments, such as temperature, humidity, and chemical content in the air strongly determines the rate of corrosion. Medan Belawan Sub-district is a coastal area of Medan that borders directly on the Straits of Malacca. Medan Belawan Sub-district will be focused on an industrial park and also support services such as warehousing, office centers, shipyards, and fishery industries. Currently, bridges and construction buildings or metal components such as zinc, copper, and iron-steel have been attacked by corrosion. The objective of this research is to analyze the atmospheric corrosion rate of low carbon steel in the sub-district of Medan Belawan at three location points with the notation A, B, and C. Test specimens used in this study were strip-shaped steel, rectangular steel, and reinforcing steel with the corrosion rate measurement process follows the ASTM G-50 and ASTM G-1 standards. The measurement of corrosion rate was carried out for twelve months, As for the results of the measurement of the average corrosion rate of location A: 0.573 mpy, the average corrosion rate of locationt B: 0.604 mpy, and the average corrosion rate of location C: 0262 mpy. It can be concluded low carbon steel corrosion rate in Medan Belawan Sub-district in the outstanding category and very safe to used for construction needs in the location.","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49280889","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":"SIMULASI OPTIMASI KAPASITAS PLTS ATAP UNTUK RUMAH TANGGA DI SURABAYA","authors":"Elieser Tarigan","doi":"10.24269/mtkind.v14i1.2600","DOIUrl":"https://doi.org/10.24269/mtkind.v14i1.2600","url":null,"abstract":"Energi surya merupakan salah satu pilihan yang dapat digunakan untuk mengurangi pemakaian  sumber energi fosil yang persediaannya semakin menipis serta pemanasan global yang ditimbulkan akibat pemakaiannya. Pemerintah Indonesia telah mengusahakan pemanfaatn pembangkit listrik tenaga surya (PLTS) melalui berbagai kebijakan. Tulisan ini membahas  optimasi kapasitas PLTS atap (rooftop) untuk sebuah rumah tangga mengacu pada kebijakan pemerintah tentang PLTS atap yang berlaku saat ini. Studi kasus dilakukan terhadap sebuah rumah dengan perkiraan beban PLN terpasang 2,2 kVA dan kebutuhan energi listrik sekitar 13 kWh/hari, yang berada di Surabaya. Energi keluaran sistemPLTS  disimulasikan dengan software PVSpot dan SolarGIS. Untuk memenuhi kebutuhan listrik rumah tangga dalam studi kasus, sistem PLTS yang optimum adalah sekitar 3 kWp dengan sistem  inverter yang sesuai. Energi keluaran rata-rata bulanan sistem PLTS tersebut adalah .350 kWh dengan rentang terendah dan tertinggi masing-masing 203 kWh dan 350 kWh per bulan. Energi tersebut dapat memenuhi 90% kebutuhan energi rumah yang disimulasikan. Solar energy is one of the options that can be exploited to reduce fossil-based fuel which its availability is limited and global warming impact of its use. The Government of Indonesia has been promoting solar electricity use through various policies. This paper discusses the optimum capacity of the solar rooftop PV system specifically for households based on the most recent The Government policy.  A typical house with the grid capacity installed 2,2 kVA located in Surabaya is simulated. The daily energy demand of the house is about 13 kWh per day. Simulations were carried out using PVspot and SolarGIS. It is found that the optimum capacity of the rooftop PV system for the simulated house is 3 kWp with a suitable of the inverter system. The average energy output for such a system is 350 kWh per month, with minimum and maximum of 203 kWh and 350 kWh per month respectively. The system could provide 90% of electricity for the simulated household. ","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44091331","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 PENGENDALI VALVE TANGKI BAHAN BAKAR PADA KAPAL BERBASIS FIBER MEDIA CONVERTER","authors":"A. Z. Arfianto","doi":"10.24269/mtkind.v14i1.2018","DOIUrl":"https://doi.org/10.24269/mtkind.v14i1.2018","url":null,"abstract":"PT. XYZ adalah perusahaan yang bergerak dibidang building dan repair kapal. Kapal yang di bangun oleh PT. XYZ di desain dengan modern , nyaman dan tanguh. Sistem emergency tangki bahan bakar pada kapal yang dibangun oleh PT. XYZ sangat sederhana yaitu dengan cara kerjanya, pada saat ada kebakaran di sekitar area tangki bahan bakar, maka ABK kapal bergegas naik ke anjungan untuk menarik tali kawat agar katub tangki bahan bakar tertutup. Dengan kekurangannya sistem emergency tangki bahan bakar yang kurang baik, maka akan dibuatlah sistem pengendali tangki bahan bakar pada kapal secara otomatis menggunakan jaringan kabel optik. Sistem ini dirancang dengan pengontrolan jarak jauh dengan menggunakan komponen-komponen seperti motor servo untuk menarik tali kawat pada valve tangki bahan bakar, mikrokontroller untuk sambungan kontrol motor servo, Sensor api untuk mendeteksi bara api, konverter optik untuk sambungan kabel jaringan dan juga interface web untuk mengontrol sistem. Dari hasil pengujian, sistem ini dapat bekerja dan berfungsi dengan baik. Sensor api dapat membaca bara api dengan jarak minimal 2 cm dan maksimal 7 cm dengan kecepatan transfer data yang sangat cepat adalah 1.01 second . Hasil tersebut didapatkan setelah melakukan uji coba dengan beberapa kondisi.","PeriodicalId":31718,"journal":{"name":"Multitek Indonesia","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42947356","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}