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All Journal Jurnal Rekayasa Mesin JTM-ITI (Jurnal Teknik Mesin ITI) STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Jurnal Teknik Mesin Indonesia Piston: Jurnal Teknologi DEDIKASI : Jurnal Pengabdian Kepada Masyarakat
Ronald Akbar
Institut Tekonologi Indonesia, Tangerang-Banten, Indonesia
Aerospace Engineering Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences

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Perancangan Boiler untuk Proses Sterilisasi pada Baglog Jamur Tiram Akbar, Ronald
JTM-ITI (Jurnal Teknik Mesin ITI) Vol 3, No 1 (2019): Jurnal Teknik Mesin ITI
Publisher : Institut Teknologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (509.833 KB) | DOI: 10.31543/jtm.v3i1.245

Abstract

The production process is the core of an industry that certainly relies on a variety of equipment to help the process run. Oyster mushroom baglog industry is one of the agricultural industries that needs to be developed in its production equipment because of its good market prospects and high economic potential with a clear market segment. But there is a problem that often faced by the baglog farmers, the problem is the sterilization process from baglog itself is not good, so the quality of the oyster mushroom will decrease or worse is the crop failure. Therefore an appropriate boiler is needed that it can increase the yield and quality of a baglog oyster mushroom industry. Boilers that are designed will follow the existing standards, which are in accordance with the ASME (American Society of Mechanical Engineers) Boiler and Pressure Vessel Code (BPVC) standards and coupled with simulations in the form of adding loads to the boiler model using Pro Engineer Wildfire 4.0 software.
Implementasi MBKM dalam Meningkatkan Kualitas Produk Makanan "Tek Noeni" dan Minuman Kesehatan "Saina Quantum Nusantara" Di Kota Tangerang Selatan Iyus Hendrawan; Yenny Widianty; Muhami Muhami; Ronald Akbar; Muhammad Kurniadi Rasyid; Khairul Jauhari; Achmad Zaki Rahman
Dedikasi : Jurnal Pengabdian Kepada Masyarakat Vol. 1 No. 2 (2022): DEDIKASI : Jurnal Pengabdian Kepada Masyarakat
Publisher : Lembaga Layanan Pendidikan Tinggi Wilayah III DKI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53276/dedikasi.v1i2.14

Abstract

Pemerintah melalui kebijakan Merdeka Belajar Kampus Merdeka (MBKM) senantiasa meningkatkan relevansi pendidikan tinggi guna mempersiapkan sumber daya manusia dalam menyambut Indonesia Emas 2045.  Salah satu kebijakan MBKM adalah mampu terimplementasikan hasil-hasil penelitian bagi masyarakat luas, termasuk turut serta meningkatkan perekonomian bagi UMKM melalui hilirisasi ilmu dan teknologi, sehingga mampu mengoptimalkan proses produksi dan  meningkatkan daya saing produk. Program pengabdian yang merupakan hasil implemtasi MBKM diterapkan pada dua UMKM yaitu umkm Tek Noeni yang bergerak pada bidang makanan Dadak Rendang serta UMKM Saina Quantum Nusantra yang memproduksi hidrosol dan astiri. Teknologi hasil MBKM yang diterapkan kepada mitra UMKM yaitu Teknologi proses produksi yang meliputi alat pengaduk, mesin seamer, alat pasteurisasi,  dan alat destilasi. Peningkatan kapasitas (capacity building) yang meliputi berbagai pelatihan diantaranya digital marketing Metode dan tahapan penerapan atau implementasi hasil kepada UMKM Mitra meliputi tahapan identifikasi  kebutuhan Mitra, pelatihan dan introduksi empat alat produks serta pelatihan untuk menghasilkan produk berkualitas serta membangun jejaring pasar lewat digital marketing.Hasil pelaksanaan program pengabdian telah dintroduksian empat alat produksi dan dilakukannya peningkatan capacity buliding bagi kedua mitra UMKM.
Two-Phase Flow Pattern Map pada Pipa Horizontal dengan Permukaan Halus (Review Paper) Akbar, Ronald
Jurnal Rekayasa Mesin Vol 17, No 3 (2022): Volume 17, Nomor 3, Desember 2022
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v17i3.3692

Abstract

Untuk mengetahui pola (rejim) aliran dua fase yang mengalir pada suatu pipa, sampai sekarang terdapat dua metode yang dapat dilakukan yaitu dengan menggunakan high speed camera dan memprediksinya dengan menggunakan flow pattern map. Banyak penelitian terkait perancangan two-phase flow pattern map dilakukan dikarenakan mahalnya teknologi high speed camera ini yang membuat tidak semua peneliti dapat memiliknya. Pada penelitian ini, dilakukan sebuah review berbagai jurnal terkait penelitian two-phase flow pattern map aliran yang mengalir pada pipa horizontal dengan permukaan halus. Dari 18 jurnal dari berbagai peneliti dengan berbagai keadaan yang telah direview, didapat beberapa hasil yang didapatkan diantaranya : dengan berjalannya waktu diketahui bahwa penggunaan fluida kerja dalam penelitian berkembang dari air dan udara menjadi refrijeran, pipa yang digunakan semakin mengecil diameternya, dan dalam penelitiannya divalidasi dengan menggunakan high speed camera. Kemudian flow pattern map versi dahulu dikhawatirkan menimbulkan delay yang besar apabila dipaksa memprediksi data penelitian dengan fluida kerja refrijeran dan pipa skala mikro. Dari penelitian review ini dapat disimpulkan bahwa flow pattern map versi Wojtan et al. [11] dianggap reliable dan memungkinkan untuk digunakan pada penelitian-penelitian berikutnya.
Analisis rugi kalor selama proses pemanasan pada semi-spherical plenum stainless steel 316 berdasarkan perubahan setting suhu pemanasan Zavi Indasyach Moreno; Ronald Akbar; Almira Citra Amelia; Hilman Adrian; Jeff Michael Johanes; Putut Hery Setiawan; Hyundianto Arif Gunawan; Ragil Sukarno; Darwin Rio Budi Syaka; Mulya Juarsa
Jurnal Teknik Mesin Indonesia Vol. 18 No. 2 (2023): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v18i2.498

Abstract

Reactor core melting in a semi-spherical geometry has released heat during severe accidents in nuclear reactors, where the heat-dissipating characteristics need to be studied. So, the study aims to determine the temperature distribution phenomenon and the heat loss rate in stainless steel 316 semi-spherical. This study used a semi-spherical plenum to simulate nuclear reactor debris by experimental methods. Experiments were carried out using four temperature variations from 50oC, 100oC, 150oC, and 200oC. The measuring instrument used is a K-type thermocouple that has been installed at 14 predetermined points. Data taken are the process of increasing and decreasing the temperature in the semi-spherical plenum and the value of the heat loss rate. Based on the experimental results, it was found that the characteristics of the increase and decrease in temperature during the heating and cooling processes at each thermocouple point tended to be the same. Heat loss values that were obtained at temperatures of 50oC, 100oC, 150oC, and 200oC were 354.235 watts, 670.714 watts, 1442.303 watts, and 2064.727 watts. The value of the heat loss will increase in proportion to the size of the setting temperature. The heat loss rate value for all experiments exceeds 50%.
Pemanfaatan Software Heat Transfer Research Inc. (HTRI) dalam Perancangan Double-Pipe Heat Exchanger Ronald Akbar
STRING (Satuan Tulisan Riset dan Inovasi Teknologi) Vol 8, No 1 (2023)
Publisher : Universitas Indraprasta PGRI Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/string.v8i1.16098

Abstract

The design of a double-pipe heat exchanger has been carried out. This study aimed to compare the overall heat transfer coefficient from the double pipe heat exchanger design with the HTRI software output results. The overall heat transfer coefficient value in the manual calculation process is 221.53 W/m2K. The design process with HTRI software was carried out by inputting data from design cases into the software. From the running results, the overall heat transfer coefficient is 213.58 W/m2K. The results compared to produce a deviation of 3.67%. The results of this deviation are considered very good because it is far below the deviation value targeted in this study, which is .  The HTRI software is beneficial as a validation tool and a complement to the heat exchanger design process.
Optimasi Penggunaan Energi Terbarukan pada Budidaya Lele Bioflok di Pandeglang dengan HOMER Rudi Purwo Wijayanto; Ronald Akbar; Imam Arif Raharjo
Piston: Jurnal Teknologi Vol 9 No 1 (2024): Juni 2024
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v9i1.59

Abstract

The bioflock catfish farming method presents advantages in terms of enhancing feed efficiency and reducing chemical usage. However, it faces challenges in higher energy consumption compared to conventional methods. Additionally, not all farming locations are situated near residential areas and connected to the PLN grid; some are located in remote areas without PLN grid access. This study aims to assess the potential and effectiveness of renewable energy utilization using HOMER Pro for bioflock catfish farming in Pandeglang, West Java. Pandeglang has an average solar radiation intensity of 5.27 kWh/m²/day and an average wind speed of 4.99 m/s, making it suitable for the utilization of solar panels and wind turbines as renewable energy sources. A bioflock catfish farming operation with a capacity of 2 tons per cycle requires 13.14 kWh/day of energy, with a peak load of 1.74 kW. Using HOMER Pro, this study explores 11 scenarios with various generator configurations. The most optimal scenario involves the use of solar panels with a capacity of 1.58 kW combined with energy from PLN, resulting in a renewable energy utilization rate of 39.2%. The cost of energy produced in the optimal scenario is Rp 1,019.00/kWh, with an Internal Rate of Return (IRR) of 20%, a Return on Investment (ROI) of 16%, and a Break-Even Point (BEP) of 5 years. The best scenario yields a Net Present Cost (NPC) of Rp 81,100,000, which is 19% lower than the baseline scenario's NPC of Rp 100,000,000 over the 20-year project period.
Co-Authors Achmad Zaki Rahman Almira Citra Amelia Darwin Rio Budi Syaka Hilman Adrian Hyundianto Arif Gunawan Imam Arif Raharjo Iyus Hendrawan Jeff Michael Johanes Khairul Jauhari Muhami Muhami Muhammad Kurniadi Rasyid Mulya Juarsa Putut Hery Setiawan Ragil Sukarno Rudi Purwo Wijayanto Yenny Widianty Zavi Indasyach Moreno