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Pembuatan Alat Ukur Kecepatan Angin Optocoupler dengan SMS Berbasis Mikrokontroler Suryadi, Dedi; Al Ayufhi, Syahlahudhin; Suryono, Ahmad Fauzan; Maimuzar, Maimuzar
ROTASI Vol 21, No 3 (2019): VOLUME 21, NOMOR 3, JULI 2019
Publisher : Departemen Teknik Mesin, Fakultas Teknik, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.739 KB) | DOI: 10.14710/rotasi.21.3.187-192

Abstract

Energi listrik merupakan elemen penting dalam berbagai aspek kegiatan manusia. Kebutuhan listirk ini meningkat dengan meningkatnya populasi manusia. Solusi yang dapat diberikan dalam masalah ini adalah energi terbarukan, salah satunya adalah energi angin. Untuk memanfaatkan energi angin, perlu untuk mengetahui potensi angin di daerah yang akan dipasang pembangkit. Penelitian ini akan membuat alat ukur kecepatan angin yang dapat mengukur dan merekam data angina dengan menggunakan optocoupler. Alat ukur ini juga dilengkapi dengan sistem SMS untuk akses datanya dalam jarak jauh. Sehingga alat ini dapat berfungsi bukan hanya sekedar pengukur kecepatan angin tetapi juga bisa mengirim data kepada operator melalui SMS. Dalam penelitian ini, mikrokontroler yang digunakan adalah Arduino Mega 2560. Selanjutnya, alat ukur hasil rancangan dibandingkan dengan alat ukur standar sebagai validasi. Berdasarkan hasil pengujian meninjukkan bahwa alat ukur kecepatan angin berhasil dibuat dan dapat digunakan untuk mengukur potensi angin
Analisa Kekerasan dan Ketebalan Permukaan Lapisan Hasil Elektroplating Kuningan Pada Baja Rakiman Rakiman; Hanif Hanif; Menhendry Menhendry; Maimuzar Maimuzar; Yuli Yetri
JST (Jurnal Sains Terapan) Vol 7, No 1 (2021): JST (Jurnal Sains Terapan)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v7i1.1114

Abstract

Korosi merupakan proses spontan yang terjadi pada logam karena pengaruh lingkungan. Terbentuknya korosi dipermukaan logam tidak bisa dicegah, tetapi bisa diperlambat proses terjadinya. Salah satu usaha untuk memperlambat laju korosi adalah dengan melakukan pelapisan (elektroplating) pada permukaan logam tersebut. Telah dilakukan proses elektroplating kuningan pada baja karbon rendah ST-37  dengan variasi waktu 10 menit, 15 menit, 20 menit dan 25 menit serta variasi suhu larutan elektrolit 40°C, 45°C, 50°C, dan 55°C. Karakteristisasi lapisan dilakukan dengan menggunakan mikroskop stereo dan kekerasan dengan uji keras Vicker. Hasil pengujian menunjukan bahwa peningkatan waktu dan suhu berbanding lurus  dengan ketebalan dan kekerasan yang dihasilkan. Nilai ketebalan dan kekerasan terendah ditemukan pada 40°C dengan waktu 10 menit 11,323 μm 182,4 VHN, dan nilai rata-rata ketebalan dan kekerasan tertinggi diperoleh pada 25 menit dengan suhu 55°C yaitu 29,333 μm dan 218,8 VHN.  Dari hasil yang diperoleh dapat disimpulkan bahwa peningkatan waktu dan suhu yang diberikan berbanding lurus dengan ketebalan dan kekerasan. Nilai ketebalan dan kekerasan tertinggi diperoleh pada 25 menit dengan suhu larutan 55°C.
Pengujian Alat Modifikasi Alternator Mobil Menjadi Listrik Rumah Naufal Noverdi; Eka Sunitra; Maimuzar Maimuzar
Jurnal Teknik Mesin Vol 11 No 1 (2018): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

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Abstract

This paper discusses the use of alternator cars into home electricity. This paper aims to overcome the energy crisis by reducing dependence on fossil energy sources by utilizing alternative energy sources or by developing technology in the form of alternator modifications, and also from this paper we can find out the optimum conditions of rotation and generating electricity. The workings of this alternator modification tool so as to produce electrical power that is using a motor as a drive connected to the alternator produced mechanical energy converted into electrical energy and from this alternator a voltage of 12 volts comes out and goes into travo to increase the voltage to 220 Volts. From the results of the testing of this final project, the effect of rotation on the production of electrical energy coming out on this alternator modification tool is if the rotation produced is high then the power output is also good and if the rotation is slowed the power coming out will also be small. The optimum condition of this test is at 1600rpm. Key words: keywords are written in 5 words which should be a subset of paper titles, written using lowercase letters except for abbreviations, and separated by comma punctuation for between words.
Pengaplikasian Mikrokontroler Arduino Uno Pada Simulasi Sistem Pengapian Mesin Bensin 4 Langkah (4 Silinder) Anggi Septiawan Putra; Nusyirwan Nusyirwan; Maimuzar Maimuzar
Jurnal Teknik Mesin Vol 10 No 2 (2017): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

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Abstract

The 4 stroke (4 cylinder) gasoline engine ignition system simulation based on the Arduino Uno microcontroller was designed as one of the modeling of conventional ignition system modification into an electronic ignition system based on the Arduino Uno microcontroller. Conventional ignition systems are modified by removing distributor components and replaced with microcontrollers as ignition system controllers. Spark plug and coil cables are replaced with Igniton coil that uses Igniter. Arduino Uno microcontroller is used as a controller that receives signals from the optocoupler sensor and activates the module relay so that the electric current enters the Ignition Trigger, the voltage needed by Igniton Trigger is 2 V by using a step down transformer to reduce the voltage. So that the Ignition Coil is active and produces a high voltage so that it can produce sparks on each spark plug. This Arduino Uno microcontroller processes data received from an optocoupler sensor
Alat Pengering Kerupuk Palembang Dengan Menggunakan Gas LPG Ridho Pratama Fajri; Maimuzar Maimuzar; Ruzita Sumiati
Jurnal Teknik Mesin Vol 10 No 2 (2017): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

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Abstract

This cracker dryer is made considering that there are still many cracker industries that use solar thermal energy directly to dry raw crackers before the frying process, so that the cracker production results will decrease due to inefficient drying process, therefore all obstacles are always experienced when using energy sunlight can be overcome by using a cracker dryer using gas (LPG). This cracker dryer has dimensions of length 550 mm x width of 450 mm x height of 1000 mm and size of drying rack with a length of 500 mm x width of 400 mm x height of 25 mm. This tool has 4 drying racks with a capacity of each rack 1.5 kg. This dryer uses the principle of convection that is utilizing heat energy generated from the heat of the fire produced through a gas-using stove (LPG), the radiated fire produces heat that enters the drying cabinet. Hot air is locked in a drying room, so that the heat can help the drying process of crackers
Kajian Potensi Air Pengerak Pompa Hidram untuk Mengairi Sawah di Daerah Pakandangan Kabupaten Padang Pariaman Ichlas Nur; Nota Effiandi; . Mulyadi; . Maimuzar; . Hendra
Jurnal Ilmiah Poli Rekayasa Vol 15, No 1 (2019): -
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (613.301 KB) | DOI: 10.30630/jipr.15.1.139

Abstract

Energy is needed in mobilizing a mechanism both electric energy and energy derived from fossils. Hydram pump is a device to raise water from a low place to a high place by utilizing water impacts without using renewable energy. In Pakandangan, Padang Pariaman Regency, there is a water source that cannot be utilized to flow through the rice fields around 10 Ha. Because the rice fields are higher with water sources. The methodology is to survey the location and design the dimensions of the hydram pump. The results obtained head data height of incoming water is 2.5 meters, the height of water lift to the shelter is 7 meters the flow of water entering the pump is 25 lt / sec. The dimensions of the pump are the result of the design of a hydram 1 size with an inside diameter of 2 inches
Pembelajaran E-Learning Berbasis Web Bagi Pengajar untuk Mendukung Kegiatan Perkuliahan di Politeknik Negeri Padang Maimuzar - -; Nasrul - -
Jurnal Ilmiah Poli Rekayasa Vol 12, No 2 (2017)
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (754.094 KB) | DOI: 10.30630/jipr.12.2.41

Abstract

We-based e-Learning System can be used to support lecture’s activity. Lecturer as a teacher need a servise of the Sistim which suitable for their activities. Lecturer’s activities consist of delivering materials, discussion and interaction with their students. Because of that the aplication design is needed to support the activities of lectures.             Designing the web based e-Learning System is intended to give a service on the lecture. Lecture can do their teaching activities, delivering the materials and administering it using this e-Learning aplication. From the student side, they have to receive the materials easily from anywhere at anytime. This research have an objective to design a web based e_learning System which give an adequate service supporting the lecturer’s activities. Lecture can use this aplication ti deliver their materials, communicating and interacting with their student, observing the progress of students and give result of learning evaluation from the web.             The design and implementation of this e-learning application is based on the requirement of the users. The users consist of lecturer, student, quest, and administrator. The process of aplication design is built within Sistimatical stages. After finishing the design process, the aplication is implemented on the real Sistim. Doing the design testing and functional is to test if the aplication can go well together with design and funtionality.e-Learnign aplication that has been built is designed based on lecturer’s need when doing their lecture’s activities. This e-Learning aplication can be used as contribution for building new aplication or5 improving others that has already exist.
PKM Pembuatan Pupuk Kompos Limbah Pertanian Yuli Yetri; Rakiman; Maimuzar; Rahmi Hidayati; Feidihal
Bahasa Indonesia Vol 19 No 02 (2022): Sarwahita : Jurnal Pengabdian kepada Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/sarwahita.192.3

Abstract

Kelompok Tani Cahaya Baru Nagari Persiapan Lubuk Gadang Barat Kecamatan Sangir Kabupaten Solok Selatan telah mendapat penyuluhan dari tim pengabdian masyarakat Politeknik Negeri Padang. Sosialisi yang diberikan adalah tentang bagaimana cara membuat pupuk kompos dari limbah pertanian. Permasalahan yang ditemukan adalah petani sering kekurangan pupuk untuk memupuk tanamannya. Sehingga untuk memenuhi kebutuhannya harus membeli pupuk dengan harga yang mahal. Solusi yang ditawarkan untuk mengatasi permasalahan yang terjadi pada kelompok tani tersebut adalah memberikan penyuluhan cara membuat pupuk kompos dari limbah pertanian. Dengan memberikan penyuluhan ini diharapkan kelompok tani dapat menyediakan pupuk alami untuk kebutuhan petani di desa Bumi Ayu umumnya dan kelompok tani Cahaya Baru khususnya. Kontribusi mendasar pada khalayak sasaran adalah setelah program pengabdian ini diharapkan petani mampu membuat pupuk kompos yang dapat digunakan sebagai pupuk alam untuk mengatasi ketergantungan terhadap pupuk kimia, sehingga dapat menjaga kesuburan tanah di lahan pertanian.
Analisis Heatmap Korelasi dan Scatterplot untuk Mengidentifikasi Faktor-Faktor yang Mempengaruhi Pelabelan AC efisiensi Energi Desmarita Leni; Muchlisinalahuddin .; Maimuzar .; Haris .; Hendra .
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13133

Abstract

This research aims to evaluate the factors that affect AC energy efficiency using statistical analysis methods. The data used is energy-efficient AC labeling data obtained from the Directorate General of New, Renewable, and Energy Conservation Energy (EBETKE) database. Violin plots are used to see the distribution of the data, a correlation heatmap is used to display the level of correlation between variables, and scatterplots and R-squared values are used to visualize linear relationships and measure the strength of the relationship. The results of the study show that efficiency has a very strong positive correlation with rating, with a correlation coefficient of 0.75, while it has a weak negative correlation with other variables. The R-squared value obtained for the linear relationship between efficiency and rating is 0.56, which indicates that 56% of the variation in efficiency can be explained by the variation in rating. This result shows that rating is a very influential factor on AC energy efficiency.
Perancangan Mesin Pemutar Gerabah Dengan Kekuatan Tumpuan Maksimal 10 kg Sir Anderson; Yazmendra Rosa; Khairul Amri; Maimuzar Maimuzar; Hendra Hendra; Aqli Ridawansyah
Jurnal Teknik Mesin Vol 16 No 1 (2023): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.16.1.980

Abstract

Pottery is an art craft made from clay which besides having a high use value also has a pretty good aesthetic value. Pottery craft business has existed in Indonesia since ancient times until now. This business has a deficiency in the production machine part, where the production machine still uses human power as the main driving force during the rotation during the pottery making process. Therefore, a modification of a better pottery turning machine is needed to support the pottery craft business. The design of this pottery turning machine uses a working drawing design of a pottery turning machine product with a rotating speed that can be adjusted according to work requirements via a speed control pedal. The pottery turning machine has a strong construction with machine specifications of length 760 x width 400 x height 700 mm, with the addition of 2 pulleys with a first pulley diameter of 2.5 inches, and a second pulley diameter of 12 inches with a connecting belt using type A-57. And by using umbrella gears with a ratio of z1 = 25 and z2 = 50 with a maximum pedestal capacity of 10 kg.