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Optimasi UV-Photolithography Aligner dan Photomask Menggunakan Produk Komersial untuk Microfabrication Delffika Canra; Dedi Suwandi
Jurnal Teknologi Terapan Vol 2, No 1 (2016): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (582.472 KB) | DOI: 10.31884/jtt.v2i1.22

Abstract

The high price of a UV-photolithography aligner on the market is the reason for designing and characterize low cost UV-photolithography aligner. Photolithography process is simple but it needs patience, enable to modify photolithography aligner by using commercial components and certainly low price. The objective of this study is analyzing the ability of a commercial product in UV-photolithography process, search optimum exposure time and resolution. The method of photolithography process to be used is the method of contact alignment. Commercial UV lamps and cheap photomask are main component in this study. With a light intensity of 0.2 mW/cm2 require the exposure time at least 50 seconds. The smallest achievable resolution depends on the resolution photomask. The Results of smallest resolution is 165 m with a percentage error 10% of the original design.
ANALISIS KEKUATAN BALL VALVE AKIBAT TEKANAN FLUIDA MENGGUNAKAN FINITE ELEMENT ANALYSIS Meri Rahmi; Delffika Canra; Suliono Suliono
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (531.669 KB) | DOI: 10.31884/jtt.v4i2.122

Abstract

Valve (katup) sebagai salah satu produk industri, sangat dibutuhkan oleh perusahaan yang bergerak mengontrol aliran cairan untuk efisiensi. Kebutuhan tentang ini banyak digunakan oleh perusahaan makanan, obat-obatan, minuman, pembangkit listrik dan industri minyak dan gas. Tujuan penggunaan valve adalah untuk membatasi dan mengontrol cairan pada kondisi tekanan tinggi. Salah satu katup yang sering digunakan adalah ball valve, yaitu katup dengan tipe gerak memutar. Adanya permintaan ball valve ini, dibutuhkan produk dengan spesifikasi tertentu memiliki rancangan dengan tingkat kekuatan yang baik. Dengan kata lain, produk valve (katup) yang baik, harus memiliki kekuatan yang baik, aman dan sesuai dengan kebutuhan dilakukan pengujian. Penelitian ini bertujuan untuk melakukan analisis terhadap ball valve 4 inch ANSI 300 untuk memastikan katup yang diproduksi sesuai spesifikasi, kuat dan tahan terhadap tekanan fluida. Metode yang digunakan adalah Finite Element Analysis (FEA) dengan software Solidworks. Analisis dilakukan pada ball valve 4 inch ANSI 300 dengan keadaan full open, hall open dan full closed serta dengan pembebanan 725 psi dan 1087.5 psi hasil dari Computational Fluid Dynamics (CFD). Analisis dilakukan pada temperatur -29.50C, 250C dan 4250C. Berdasarkan hasil analisis dengan FEA, dinyatakan bahwa ball valve 4 inch ANSI 300 kuat dan aman untuk digunakan. Nilai faktor keamanan (safety factor), signifikan lebih tinggi dari nilai safety factor minimum yang diizinkan.
Analisis Perbedaan Tekanan Fluida pada Ball Valve Kondisi Full Closed dan Full Open dengan Computational Fluid Dynamics Meri Rahmi; Delffika Canra; Suliono Suliono
Jurnal Teknologi Terapan Vol 4, No 1 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.011 KB) | DOI: 10.31884/jtt.v4i1.83

Abstract

Ball valve is one type of rotary motion valve. Ball valve functions as a round disc-shaped ball-like controller. Ball valve is widely used because it is easy to repair and the ability in high pressure and high temperature. The fluid flow in the ball valve does not always flow, sometimes the flow is closed. This will affect the fluid pressure in the valve. Fluid pressure is also affected due to valve open condition. This study aims to analyze the difference of the fluid pressure in ball valve -4 inch ANSI during closed condition and open condition. The method used is Computational Fluid Dynamics with f Flow Simulation Solidworks software. The analysis was performed for two valve conditions with a temperature of 425 °C. Decrease in pressure does not significantly affect the condition of the ball valve, even when the temperature of the fluid is high. The difference of fluid pressure between full closed condition and full open is only 0.01 psi.
ANALISA ALIRAN ANGIN PADA SUDU TURBIN ANGIN SAVONIUS TIPE-U BERBASIS SOFTWARE Delffika Canra; Meri Rahmi; Emin Haris
Jurnal Teknologi Terapan Vol 4, No 2 (2018): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1216.203 KB) | DOI: 10.31884/jtt.v4i2.123

Abstract

Generally, wind energy sources in Indonesia's coastal areas is one of the potential sources of renewable energy (renewable energy resources) which are abundant, environmentally friendly and renewable. Savonius wind turbines can produce relatively high torque even at low wind speeds. Because it is very well developed to produce electrical energy. To get a large electric power, a large turbine construction is also needed which also certainly requires a large cost. For this reason, it is necessary to develop the dimensions of this wind turbine construction which is known as aspect ratio (Ar). The Ar that has been researched is the blade section, and other values. While the arch depth or the length of the blade arc in U -type is still likely to be researched. Therefore, it is necessary to do research on the U-type blade arc to get greater power than before. In addition to the experimental method with a prototype of the U type Savonius wind turbine with a number of 2 blades, a software-based simulation method will be carried out to analyze the air flow on the wind turbine blade. Parameters varied only with the aspect ratio of the arc length and blade cross section width, other parameters follow the previous research. This analysis will be a comparative data with experimental methods. The expected simulation results obtain the best aspect ratio (Ar) blade in capturing wind energy.
Analisis Kekuatan Flange Valve Akibat Pengaruh Bolt Torque pada Kondisi Pressure dan Temperature Berbeda dengan Metode Finite Element Analysis Meri Rahmi; Suliono; Delffika Canra; Rachmatullah; Yusuf Nur Rohmat; Dedi Suwandi
Jurnal Teknologi dan Rekayasa Manufaktur Vol 2 No 1 (2020): Vol 2 No 1 (2020): Volume: 2 | Nomor: 1 | April 2020
Publisher : Pusat Pengembangan, Penelitian dan Pengabdian kepada Masyarat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v2i1.22

Abstract

Pipe connecting system that is connected with a valve using a flange connection. This aims to make it easier to install or disconnect when needed. This connection system includes pipe connections to fittings, valves, equipment, or other parts which are separate parts of the piping system. The analysis of the flange strength on the 4 inch ball valve ANSI 300 aims to determine and ensure that the flange has strength and is safe at the time of tide due to the influence of the torque bolt. In addition, to ensure the connection does not leak when the fluid is passed. The main combination between internal, axial pressure and thermal loading needs to be considered. Flange strength analysis using Finite Element Analysis (FEA) method with use of Solid works software. The analysis of flange strength uses the method of "Flange as weakest part philosophy", namely the full rating used when the value of a certain pressure-temperature on ASME B16.5 is taken for the Maximum Allowable Working Pressure (MAWP) in the piping system. From the results of the FEA analysis, it was found that the flange on the 4 inch ANSI 300 ball valve meets the requirements according to MAWP at different temperatures and pressures. The value of the safety factor also shows that the flange is safe during the piping work process.
Perancangan Variasi Sudut Blade Pada Kincir Angin Tipe Horizontal Untuk Pemompa Air Garam Badruzzaman Badruzzaman; Delffika Canra; Emin Haris; Agus Sifa; Kurniawan B. N
Prosiding Industrial Research Workshop and National Seminar Vol 11 No 1 (2020): Prosiding 11th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1066.414 KB) | DOI: 10.35313/irwns.v11i1.2101

Abstract

Salah satu wilayah yang memiliki pesisir pantai yang begitu panjang ialah Indramayu sehingga bisa dimanfaatkan untuk mensejahterakan masyarakat sekitar. Penggunaan kincir angin pemompa air garam di Indramayu belum optimal dikarenakan penggunaan blade yang masih menggunakan bahan bekas seperti drum, kayu yang mempengaruhi produktivitas garam. Untuk mengoptimalkan kincir angin pemompa air garam perlu adanya penelitian blade dengan bahan komposit dan juga variasi sudut blade yang dibutuhkan untuk meningkatkan produktivitas garam. Parameter yang digunakan ialah dengan memberi kecepatan pada masingmasing sudut blade yaitu 5-9 m/s. Variasi blade yang akan diteliti ialah 5°, 15°, 25°, 35°, 45°. Pada blade dengan sudut 35° memiliki nilai gaya tertinggi yaitu sebesar 99,738 N dengan input kecepatan 9 m/s. Sedangkan pada sudut blade 5° memiliki nilai gaya terkecil yaitu sebesar 12,805 N pada input kecepatan 5 m/s. Pada blade dengan sudut 25° memiliki nilai tekanan tertinggi yaitu sebesar 134736,88 Pa dengan input kecepatan 9 m/s. Sedangkan pada sudut blade 45° memiliki nilai tekanan terkecil yaitu sebesar 125270,59 Pa pada input kecepatan 7 m/s. Pada penelitian ini blade dengan kemiringan sudut 35° memiliki aliran udara yang lebih optimal dibandingkan dengan kemiringan sudut lainnya serta mampu menghasilkan gaya diatas 5 kg sehingga mampu mengangkat pompa air dalam keadaan penuh.
Kaji Eksperimental Turbin Angin Hybrid Savonius-Darrieus Eggbeater Bertingkat Banyak Delffika Canra; Suliono Suliono; Ruzita Sumiati
Prosiding Industrial Research Workshop and National Seminar Vol 12 (2021): Prosiding 12th Industrial Research Workshop and National Seminar (IRWNS)
Publisher : Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.083 KB)

Abstract

Kaji Eksperimental Turbin Angin Hybrid Savonius-Darrieus Eggbeater Bertingkat Banyak
Uji performa hybrid turbin angin savonius-darrieus eggbeater Delffika Canra; Rachmatullah Rachmatullah
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 1 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.1.41-45

Abstract

The development of the Vertical Axis Wind Turbine (VAWT) is still a challenge for several researchers in the world and in Indonesia. Due to the potential of the Indonesian coast generally has an average wind speed of 3-7 m / s which is classified as low wind speed and is very suitable for VAWT which operates at low wind speeds. Combining the 2 existing VAWT types is one of the development efforts on VAWT to improve the performance of these wind turbines. Hybrid VAWT Savonius-Darrieus can increase the coefficient of performance (Cp) where the maximum Cp of savonius is 30% while Darriues is 35%. There have been several researchers making the Savonius-Darrieus Hybrid VAWT prototype producing Cp above 35%, but this is still far from the ideal Cp of wind turbines around 59%. The combination variation of 2 types of VAWT still has the opportunity to be investigated with various variations in construction and variations in additional accessories. The research method that will be carried out is the prototype experimental method, with the design and prototyping stages. The prototype was tested at the Mechanical Engineering Laboratory of the Indramayu State Polytechnic by blowing the wind at a certain speed from the wind tunnel that had been prepared in advance. There were 11 samples prepared, namely 4 samples for 3 levels and 7 samples for 4 levels. There were 5 samples that reached a Cp value of 0.58 which was close to the ideal Cp value, but there was no increase in TSR in all samples.
Optimalisasi Proses Produksi Rengginang Ketika Musim Hujan di UMKM Kertasemaya Indramayu Muhamad Ghozali; Delffika Canra; Suliono Suliono; Muhammad Luthfi; Benny Julio Purnomo; Rizky Ramadhani
ABDI: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 6 No 2 (2024): Abdi: Jurnal Pengabdian dan Pemberdayaan Masyarakat
Publisher : Labor Jurusan Sosiologi, Fakultas Ilmu Sosial, Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/abdi.v6i2.800

Abstract

Rengginang merupakan makanan ringan yang terbuat dari ketan. Proses pembuatan rengginang dari adonan, pengeringan sampai penggorengan merupakan proses yang harus dilakukan oleh pengusaha rengginang. Pada proses pengeringan terdapat resiko untuk terhambatnya proses produksi rengginang, yaitu ketika mesin hujan atau mendung. Pada kondisi ini diperlukan alat pengering untuk pengganti proses pengeringan rengginang yang menggunakan panas matahari. Alat pengering yang dibuat mempunyai dimensi 60x120x200 cm yang mampu mengeringkan rengginang dengan jumlah 1440 buah dengan ukuran 7 cm. Bahan baku ketan yang dapat dikeringkan pada mesin pengering ini 15 kg ketan. Dari hasil pengujian didapatkan suhu ideal pada proses pengeringan adalah 70 OC dengan waktu pengeringan 5 jam jika dibandingan dengan panas matahari maka dengan alat pengering ini relatif lebih cepat proses pengeringannya. Hasil penggorengan dengan alat pengering rengginang ini sama dengan pengeringan dengan proses pengeringan dengan panas matahari