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All Journal Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Rekayasa Mesin Journal of Community Development Jurnal Teknik Terapan (J-TETA) J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Azamataufiq Budiprasojo
Jurusan Teknik Mesin Fakultas Teknik, Universitas Brawijaya
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Nursing Public Health Social Sciences

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Engine Combustion Efficiency and Performance of Exhaust Pipe Fuel Preheating System Budiprasojo, Azamataufiq; Irawan, Andik
Jurnal Rekayasa Mesin Vol 9, No 1 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (446.321 KB) | DOI: 10.21776/ub.jrm.2018.009.01.1

Abstract

The Exhaust Pipe Preheated Fuel System (EP2FS) is a fuel preheating system that utilizes wasted heat from the muffler. Fuel heating aims to improve the homogeneity of fuel and air mixtures to improve the combustion process in the engine. Making EP2FS requires careful design and calculation because the fuel temperature should not exceed 60oC so as not to evaporate. Design and calculation, using heat transfer theory of helical heat exchanger. A ready-made system will be applied in motor vehicles to be tested for combustion efficiency and performance.
Pengaruh Variasi Sudut Water Injector Berbentuk Diffuser Terhadap Fenomena Flooding Pada Aliran Dua Fase Cair – Udara Vertikal Berlawanan Arah Budiprasojo, Azamataufiq; Soenoko, Rudy; Wahyudi, Slamet
Jurnal Rekayasa Mesin Vol 4, No 3 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.509 KB)

Abstract

Flooding phenomenon becomes a looses in countercurrent two-phase flow of air-liquid in vertical pipe. Water injector sattached in to the pipe prevents the looses occur. With the use of water injector, liquid will flow attached to the inside wall of the pipe, so the air will flow freely in the middle of the pipe. New design of water injectors in diffuser shape, will be studied to replace the old annular water injectors. 10 o , 15 o , and 20 o of water injector angle will be varied to find which ones can make slowing down flooding. This Research will seek water injectors with the most slowing down flooding, indicating by it superficial velocity, fluid flow, and flow patterns. Abetter Water injector is in whis have ability to handle higher flow rate and higher superficial velocity. The best water injectors in a row is a water injector with 10 o , 20 of angle.Keywords : two phase, counter current flow, flooding, water injector, flow pattern.
Kekuatan Mekanis Antibacterial Resin Campuran Titanium Dioksida Budiprasojo, Azamataufiq; Erawantini, Feby
Jurnal Rekayasa Mesin Vol 12, No 1 (2021)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2021.012.01.24

Abstract

The aim of this research is to analyze the effect of Titanium Dioxide (TiO2) nanoparticles as resin concentrate on mechanical strength. The tested mechanical strength is Bending strength, Impact Strength, and Microhardenest Strength. The types of resin used in this study were acrylic resin without conventional modification and acrylic resin with an additional 0.01 gr and 0.06 gr of TiO2. Specimen dimensions are made revered to ISO 20795-1 (2008) standard specifications. Mechanical strength was determined by using the universal testing machine, Izod pendulum impact testing machine, and also Vickers microhardness tester. From the analysis, the researcher found that the bending strength of resin acrylic was greatly decreased by increasing the TiO2 concentration. It happens in both TiO2 0.01gr and 0.06gr of acrylic resin compared to the non TiO2 resin. The impact strength of 0.01gr TiO2 acrylic resin was significantly increased compared to non TiO2 acrylic resin. But on the other hand for 0.06gr acrylic resin, impact strength was decreased and recorded the lowest impact strength. The highest Micro hardness strength was found in 0.06gr TiO2, It is significantly increased compared to 0.01gr TiO2 and 0gr TiO2. The general conclusion is, adding 0.01gr TiO2 nanoparticles as concentrated into acrylic resin can significantly increase the bending strength, bending strength, and microhardness strength. Meanwhile, adding 0.06gr Tio2 nanoparticles as concentrated into acrylic resin can only increase the bending strength and the microhardness strength, but not for its impact strength.
Bactericidal Activity of Resin-Titanium Dioxide and Ultraviolet in Killing Escherichia Coli Bacteria Budiprasojo, Azamataufiq; Erawantini, Feby
Rekayasa : Jurnal Penerapan Teknologi dan Pembelajaran Vol 19, No 1 (2021): July 2021
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/rekayasa.v19i1.30329

Abstract

Escherichia coli (E.Coli) harms the environment in human digestion. E coli causes diarrhoea if one consumes food or drink that is not clean or exposed to bacteria. This research aims to produce a specimen that combines resin coated with TiO2 and partly ultraviolet light to kill Escherichia coli bacteria. The method used in this research is experimental. The activity in this research is mixing TiO2 nanomaterial with resin, then varying the time and exposure to ultraviolet radiation. Furthermore, observations were made by comparing the number of bacteria found in the two specimens with SEM. Specimens were analyzed using digital image processing. The appearance of the white capsule is the bacteria. The grey bottom is the specimen conclusion in this study was that the TiO2 (titanium dioxide) and resin specimens and modified ultraviolet radiation were quite effective in killing E.coli which achieved a 91% reduction in the number of bacteria.
Sosialisasi Penggunaan Portabel Alat Pemantauan Suhu, Kelembaban dan Gas Ammonia Kandang Ayam Broiler Pada UKM Peternakan Hasanah Nari, Mochamad Irwan; Budiprasojo, Azamataufiq; Muhamad, Nur
Journal of Community Development Vol. 5 No. 3 (2025): April
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v5i3.1478

Abstract

UKM Peternakan Hasanah is a broiler chicken farming business with a closed house system established in 2022 in Sumber Baru Village, Jember Regency. This farm raises 10,000 chickens with a harvest period at the age of 28 to 32 days. One of the main problems is manual monitoring of temperature, humidity, and ammonia gas, resulting in a lack of precision and efficiency. As a solution, technology is applied in the form of a portable monitoring tool using a DHT22 sensor for temperature and humidity and an MQ137 sensor for ammonia gas. Data from the sensor is processed with ESP32 and stored on a microSD card. The implementation method used is Participatory Learning and Action (PLA), which involves partners in every stage, from situation analysis, tool making, mentoring, to evaluation. This program produces a monitoring tool that is cheap, portable, and easy to use, with an increase in partner understanding from 30% to 80%. As a result, the chicken mortality rate has decreased and the efficiency of cage management has increased. This program is expected to become a model for sustainable technology for broiler chicken farming in Indonesia.
Pengujian Jarak Dan Waktu Pengereman Serta Laju Keausan Kampas Rem Berbahan Komposit Kulit Buah Mahoni Dan Serbuk Kayu Jati Sabil, Loisa Gelaro; Pratama, Aditya Wahyu; Budiprasojo, Azamataufiq
Jurnal Teknik Terapan Vol. 3 No. 2 (2024): Oktober
Publisher : P3M Politeknik Negeri Jember

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Abstract

Kampas rem adalah komponen vital pada sepeda motor yang berperan dalam mengurangi kecepatan dan menghentikan laju kendaraan. Saat kendaraan melaju di kecepatan tinggi, kampas rem memiliki fungsi beban sebesar 90% dari komponen lainnya. Adapun penelitian ini membuat kampas rem berbahan komposit dengan memanfaatkan limbah dari serbuk kayu jati dan kulit buah mahoni dengan campuran resin polyurethane dan serbuk aluminium. Spesimen kampas rem V4 memiliki jarak dan waktu pengereman tersingkat dengan jarak 3,21 meter dan waktu 0,42 detik dan mendekati spesimen kampas rem pembanding dengan jarak 2,94 meter dengan waktu 0,39 detik. Pada spesimen kampas rem V4 sisi 2 memiliki nilai laju keausan 0,892 × 10-6 gram/detik.mm2 yang mendekati kampas rem pembanding sisi 2 dengan nilai laju keausan 1,513×10-6 gram/detik.mm2 dan spesimen kampas V2 sisi 1 memiliki nilai laju keausan 0,853×10-6 gram/detik.mm2 yang mendekati kampas rem pembanding sisi 1 dengan nilai laju keausan 1,746×10-6 gram/detik.mm2. Perbedaan hasil uji jarak dan waktu pengereman serta laju keausan ini dapat terjadi dikarenakan adanya perbedaan tingkat kekerasan tiap spesimen kampas rem. Perlu dilakukan pengujian lebih lanjut mengenai tingkat kekerasan spesimen kampas rem.
Pengaruh Penambahan Magnesium dan Seng Terhadap Kekuatan Tarik Dan Bending pada Aluminium 7075 dengan Metode Sand Casting Zain, Muhammad Riefdhany Fiqri; Pratama, Aditya Wahyu; Budiprasojo, Azamataufiq; Wahyudiono, Arif
Jurnal Teknik Terapan Vol. 3 No. 2 (2024): Oktober
Publisher : P3M Politeknik Negeri Jember

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Abstract

Permintaan kualitas produk yang semakin meningkat sejalan dengan kebutuhan dan permintaan dari pasar. Aluminium merupakan salah satu bahan yang sering digunakan dalam industri. Salah satu metode yang umum diterapkan dalam pembentukan aluminium adalah metode pengecoran cetakan pasir. Tujuan dari pada penelitian ini untuk mengetahui pengaruh penambahan magnesium dan seng pada aluminium 7075 terhadap nilai uji tarik dan uji bending dengan metode pengecoran cetakan pasir. Variabel yang digunakan yaitu variabel bebas yang terdiri dari spesimen variasi 1 menggunakan bahan aluminium sebanyak 200g, spesimen variasi 2 menggunakan bahan aluminium sebanyak 188g dengan campuran magnesium sebanyak 12g dan spesimen variasi 3 menggunakan bahan aluminium sebanyak 188g dengan campuran seng sebanyak 12g. Hasil pengujian pada uji tarik diperoleh bahwa tegangan tertinggi terjadi pada spesimen variasi 2 mencapai 63,86 MPa dan perpanjangan sebesar 6,36 mm. Sedangkan pada uji bending kekuatan tertinggi pada spesimen variasi 1 dengan hasil 290,83 MPa. Hasil spesimen terbaik pada uji tarik dapat diimplementasikan pada pembuatan suspensi kendaraan, sedangkan pada uji bending dapat diimplementasikan pada pembuatan swing arm.
Pengembangan Rancangan Monitoring Tegangan dan Suhu Baterai Rakitan Lithium Ion 18650 dengan Metode ADDIE Karimah, Cahyaning Nur; Zain, Alex Taufiqurrohman; Suranto, Dwi Djoko; Budiprasojo, Azamataufiq; Malik, Abdul
J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Vol. 9 No. 2 (2025): J-Proteksion
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/jp.v9i2.2687

Abstract

Baterai Lithium sebagai sumber energi kendaraan listrik harus dioperasikan dalam kondisi yang baik. Dalam penggunaan baterai Lithium ion khususnya baterai rakitan 18650 sering ditemui permasalahan baterai overcharge dan overdischarge yang membuat kapasitas baterai berkurang. Kapasitas yang tidak sama dalam baterai rakitan akan membuat kondisi sel-sel baterai semakin buruk. Dampak selanjutnya adalah baterai dapat mengalami kenaikan suhu yang signifikan yang mengakibatkan baterai bisa meledak dan terbakar. Perlu adanya alat Monitoring baterai untuk memantau kondisi baterai. Melalui penelitian ini, dapat membantu pengguna untuk memonitor kondisi tiap sel baterai saat digunakan sehingga dapat mencegah aktivitas operasional yang berlebihan yang membuat lifetime baterai menjadi pendek atau bahkan lebih rentan untuk meledak dan terbakar. Penelitian ini bertujuan untuk mengembangkan alat Monitoring baterai dengan metode ADDIE yang merupakan metode kerangka desain yang memuat proses analisis, desain, development, implementation, dan evaluation. Rancangan Monitoring baterai dapat memantau kondisi sel baterai rakitan realtime melibatkan sensor PZEM untuk mengetahui arus dan tegangan keluaran dan pemantauan suhu kerja saat baterai digunakan dengan NTC sensor. Hasil evaluasi dari alat Monitoring dibandingkan dengan alat ukur menghasilkan tingkat error yang sangat kecil dan akurasi data yang dihasilkan mendekati 100%. Maka dapat disimpulkan bahwa alat Monitoring baterai bekerja secara fungsional dan akurat.
Co-Authors Abdul Malik Aditya Wahyu Pratama Alex Taufiqurrohman Zain Arif Wahyudiono Cahyaning Nur Karimah, Cahyaning Nur Feby Erawantini Irawan, Andik Irawan, Andik MUHAMAD, NUR Nari, Mochamad Irwan Rudy Soenoko Sabil, Loisa Gelaro Slamet Wahyudi Suranto, Dwi Djoko Zain, Muhammad Riefdhany Fiqri