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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Jurnal Teknik Mesin Civil Engineering For Community Development Trends in Mechanical Engineering Research
Kurnia Nugraha
Universitas Sultan Ageng Tirtayasa
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Unjuk Kerja Tungku Gasifikasi Tg 30-1 Dengan Bahan Bakar Sekam Padi Dengan Variasi Kandungan Kadar Air Dan Kecepatan Udara Pembakaran Kurnia Nugraha; Erwin Erwin; Slamet Wiyono; Ainun Najib
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume III Nomor 2, Oktober 2017
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (717.757 KB) | DOI: 10.36055/fwl.v2i1.2618

Abstract

The availability of fossil fuels is prolonged, declining. This causes the need to find alternative fuels is increasing. Based on this, the study discusses alternative fuels from rice husk biomass. The method to do is to process the biomass energy through the gasification process in the reactor, and vary the value of the combustion air velocity through the configuration and manometer output tubes, and the water content content of the rice husk, with the result in the form of synthetic gas. The purpose of this research is to know the effect of speed variation of fuel combustion air to syngas content, heating value (LHV) efficiency of synthetic gas and gasification. The results showed an increase for both CO and H2 compounds in water content of rice husk 8.33% and 10.28%. This result is also proportional to the increase in the heating value (LHV) of the synthesis gas produced by the calculation approach. And the overall efficiency of the gasification process is best obtained at the air velocity value of 14.9 m / s with a value of 45.95% in the moisture content of 8.33%.
Pengaruh Perlakuan Panas Terhadap Sifat Mekanik Paduan Besi Tuang Putih Dengan Cr-Ni Untuk Bilah Shot Blasting Hamdan Akbar Notonegoro; Hasanudin Gufron Fachrudin; Greida Frista; Yusvardi Yusuf Yusuf; Erny Listijorini; Rina Lusiani; Kurnia Nugraha
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume III Nomor 2, Oktober 2017
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/fwl.v2i1.2585

Abstract

Bilah sebagai salah satu komponen yang berfungsi sebagai pelontar bola-bola logam dalam mesin shot blasting, masih banyak yang diimpor dari luar negeri. Namun demikian, ditemukan banyak kegagalan ataupun umur pakai yang pendek yang disebabkan karena bahan bilah tersebut rentan mengalami kerusakan lebih cepat akibat kondisi operasional. Dalam penelitian ini dikembangkan bahan bilah berbasis paduan besi tuang putih dengan Cr-Ni yang diberi variasi perlakuan panas, baik hardening maupun tempering, untuk meningkatkan sifat mekaniknya. Dari penelitian ini diperoleh hasil bahwa nilai optimal kenaikan sifat mekanik diperoleh melalui hardening pada suhu 1000 oC yang dilanjutkan tempering pada suhu 400 oC. Pada kondisi tersebut, sampel hasil paduan memiliki struktur fasa ferit acicular, perlite dan karbida berbentuk bulat-bulat kecil. Struktur fasa ini membuat sifat mekanik sampel menjadi lebih keras dan lebih tahan terhadap gerusan saat terjadi gesekan.
RANCANG BANGUN SISTEM COOLING WATER RECIRCULATING TANK UNTUK MESIN BIOMASSA MODEL TG30-1 Slamet Wiyono; Erwin Erwin; Kurnia Nugraha; Fendi Ferdiansyah
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume III Nomor 2, Oktober 2017
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1049.649 KB) | DOI: 10.36055/fwl.v2i1.2567

Abstract

Penggunaan sistem pendingin untuk mesin gasifikasi tg30-1 memegang peranan penting agar suhu didalam reaktor tidak melebihi batasnya serta mempertahankan suhu-nya agar tetap konstan. Dalam penerapannya sistem pendingin yang ada pada manual book alat tidak dapat diaplikasikan disebabkan oleh ketersediaan lahan yang tidak ada dimana diharuskan melakukan penggalian kedalam tanah. Tujuan dari penelitian ini untuk membuat sistem pendingin yang mampu menurunkan temperatur air yang tidak melebihi batas maksimumnya sebesar 40 oC serta mempertahankannya agar tetap konstan. Metode yang digunakan adalah metode perancangan VDI 2221. Dalam penelitian ini sistem pendingin yang dibuat meliputi bagian penggunaan penambahan untuk rangka pada bagian gasifikasi tg30-1 serta sistem penampungan air yang secara terdistribusi. Pengujian performa dari sistem pendingin ini dilakukan dengan pengoperasian alat gasifikasi tg30-1 menggunakan sekam padi selama 5 jam. Hasilnya temperatur sistem pendingin mulai cenderung konstan pada menit ke 120 berkisar antara temperatur 32,3 oC - 31,8 oC temperatur tertinggi ada pada nilai 32,8 oC untuk sistem pendingin serta 31,5 oC untuk temperatur lingkungan.
Pemilihan Material Dan Desain Poros Pada Turbin Angin Double Pillar Savonius-Darrieus erwin erwin; Kurnia Nugraha; Slamet Wiyono; Fendi Ferdiansyah
FLYWHEEL : Jurnal Teknik Mesin Untirta Volume III Nomor 2, Oktober 2017
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (917.794 KB) | DOI: 10.36055/fwl.v2i1.2616

Abstract

Poros pada turbin angin hybrid savonius – darrieus merupakan salah satu komponen penting memiliki fungsi untuk meneruskan daya yang dihasilkan oleh turbin angin ke generator. Tujuan dari penelitian ini adalah menentukan material yang mampu menahan gaya turbin, tahan korosi, memiliki massa yang ringan serta memiliki nilai ekonomis. Pada pemilihan material penelitian ini, terdapat dua metode, yaitu metode kualitatif ashby dengan menggunakan software CES Edupack. Setelah mendapatkan beberapa kandidat material, pemilihan menggunakan metode kuantitatif Digital Logic dan Cost Per Unit Property. Pemilihan berdasarkan metode tersebut, terpilihlah material aluminium alloy 6061 dan untuk profil poros, didapatkan profil berupa rectangular hollow. Untuk simulasi yang dilakukan pada material, didapat hasil tegangan terkecil bernilai 6.375 N/m2 dan nilai tegangan yang terbesar bernilai 4.66681e+007 N/m2, sedangkan untuk faktor keamanan poros, adalah 5.89.
Analisa Tegangan pada Desain Empat Mata Potong untuk Mesin Pencacah Plastik Menggunakan Metode Elemen Hingga Hendra Hendra; Syahril Al Qirom; Sidik Susilo; Kurnia Nugraha; Hernadewita Hernadewita; Frengki Hardian
Jurnal Teknik Mesin Vol 16 No 2 (2023): Jurnal Teknik Mesin
Publisher : Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30630/jtm.16.2.1245

Abstract

Excessive use of plastic materials eventually causes problems related to the accumulation of plastic waste. One way to deal with plastic waste is to crush it into smaller pieces using a plastic chopper machine. The purpose of this research is to redesign the cutting blade of the crushing machine by varying the thickness of the cutting blade, the number of cutting blades of the crushing machine, and varying the cutting tooth material to get maximum stress and displacement [1-3]. From previous research it was shown that stress and deformation occurred at the number of 2 and three cutting chisel blades [1-2] and the tilt position of 4 cutting chisel blades [3]. In this research uses simulation the finite element method by a solid work design application. The thicknesses variations are 5 mm, 7 mm, and 10 mm and the number of cutting blades amounting four. The number of cutting blades used is four because of the simple design and able to carry out more cutting processes. The materials used are AISI 1045, HSS 18%, and JIS SKD 11. From the results is the recommended material thickness is 10 mm because it is able to accept less stress than 5 mm and 7 mm. The results in terms of the mechanical strength of the simulation state that all are safe to use. If it is based on mechanical strength, the recommended material is AISI 1045 coMPared to 18% HSS STEEL and JIS SKD 11. However, from economic factors, 18% HSS is a recommendation to be chosen as a cutting tooth material.
Pelatihan menggambar teknik 3D menggunakan aplikasi berbasis CAD (Computer Aided Design) untuk guru SMK Abdullah, Syarif; Alhamidi, A. Ali; Notonegoro, Hamdan Akbar; Hendra, Hendra; Erwin, Erwin; Lusiani, Rina; Sudrajad, Agung; Nugraha, Kurnia; Setiawan, Ipick
Civil Engineering for Community Development (CECD) Vol 2, No 2 (2023): EDISI OKTOBER 2023
Publisher : Department of Civil Engineering Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/cecd.v2i2.22539

Abstract

Kemampuan menggambar teknik merupakan kompetensi yang sangat penting bagi para siswa lulusan SMK. Oleh karena itu, para guru SMK diharapkan dapat menguasai kemampuan tersebut. Berdasarkan survei dan wawancara mengenai pembelajaran menggambar teknik di SMK YP Fatahillah 1 Cilegon, didapatkan informasi bahwa diperlukan adanya peningkatan kemampuan dari para guru dalam penguasaan kompetensi tersebut. Berdasarkan keadaan tersebut, Jurusan Teknik Mesin Untirta melaksanakan program pengabdian kepada masyarakat berupa pelatihan menggambar teknik. Aplikasi yang diajarkan pada pelatihan ini yaitu software komputer berbasis CAD (Computer Aided Design). Peserta pada kegiatan ini adalah para guru dan laboran di SMK YP Fatahillah 1 Cilegon. Kegiatan dilaksanakan selama tiga hari. Hasil dari kegiatan pelatihan ini yaitu adanya peningkatan pemahaman dan penguasaan aplikasi berbasis CAD dari para guru berdasarkan evaluasi yang diberikan. The ability to draw technically is a very important competency for vocational school graduate students. Therefore, vocational school teachers are expected to be able to master these skills. Based on surveys and interviews regarding technical drawing learning at SMK YP Fatahillah 1 Cilegon, information was obtained that it was necessary to increase the abilities of teachers to master these competencies. Based on these conditions, the Department of Mechanical Engineering, Untirta, implemented a community service program through technical drawing training. The application taught in this training is CAD (Computer Aided Design) based computer software. Participants in this activity were teachers and laboratory assistants at SMK YP Fatahillah 1 Cilegon. Activities were carried out for three days. This training activity increases teachers' understanding and mastery of CAD-based applications based on the evaluation carried out.
ANALYSIS OF THE EFFECT OF COAL QUALITY ON STEAM PRESSURE PRODUCED BY BOILER ENGINES IN PT. SINAR MEADOW INTERNATIONAL INDONESIA Marvel, Marchello; Lusiani, Rina; Ula, Shofiatul; Jannah, Miftahul; Nugraha, Kurnia; Bagaskara, Rafly Priyantama Ramadhan; Mursyidah, Himmatul; Abdullah, Syarif
Trends in Mechanical Engineering Research Vol 2, No 1 (2024): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i1.26163

Abstract

In general, coal fossil fuel reserves are the main load in the industry, especially in the use of boiler engines. Coal comprises carbon, hydrogen, oxygen, nitrogen, sulfur, and mineral compounds. A boiler engine is a machine that produces high-pressure water vapor by heating water through fuels such as coal. The water vapor can then be used for various purposes, such as heating oil in the oil manufacturing industry, especially PT. Meadow Rays. Steam is an effective and inexpensive medium for transferring heat to a process. Coal plays an important role in the operation of boiler engines because coal is one of the fuels that is often used in the heating process. The quality of the coal can affect the quality of the steam produced by the boiler engine. Suitable coal shape for boilers at PT. Meadow rays are generally solid or solid, such as chunks, fractional coal, or bituminous coal that has a large coal size that has a mesh size between 3.2 mm to 6.3 mm or about 1/8 to 1/4 inch. This is because the solid, dense form of coal has a higher density and lower porosity, so it can retain heat better and provide a smaller surface for the combustion process. Coal users must be provided to PT. Sinar Meadow must have a minimum calorie of 6300 kcal/kg, for the efficiency and safety of the boiler at PT. Meadow Rays. Therefore, paying attention to the coal quality used in boiler engines is important to produce high-quality and efficient steam.
CONCEPT OF DIGITALIZATION OF SAILING LINE IN CRITICAL AREA THROUGH FISHING BOAT GENERATED WAVE IDENTIFICATION Suprayogi, Dedy Triawan; Satria, Dhimas; Haryadi, Haryadi; Nugraha, Kurnia; Abdullah, Syarif; Erwin, Erwin
Trends in Mechanical Engineering Research Vol 2, No 2 (2024): December
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v2i2.30949

Abstract

This paper explores the concept of digitalization in critical sailing lines to manage ship-generated waves (SGW), with a focus on fishing boats. Indonesia, as a maritime nation, faces challenges due to the environmental impact of SGW, such as riverbank erosion, habitat disruption, and damage to marine infrastructure. The proposed digital framework integrates real-time environmental data, including tidal conditions, river currents, and water depth, with vessel parameters like speed and GPS tracking. This system aims to provide accessible information through websites and smartphone applications, enabling safer and more efficient navigation. The results highlight the importance of digitalization in enhancing maritime safety, reducing environmental damage, and improving operational efficiency for fishermen and port operators. 
PRELIMINARY STUDY ON THE USE OF IPOMOEA CARNEA POWDER AS A REINFORCEMENT MATERIAL IN THE PRODUCTION OF POLYMER ROOF TILES Kustyo, Nicko Dharma; Sunardi, Sunardi; Fawaid, Moh.; Susilo, Sidik; Setiawan, Ipick; Yusuf, Yusvardi; Sudrajad, Agung; Listijorini, Erny; Nugraha, Kurnia; Wiyono, Slamet; Haryadi, Haryadi
Trends in Mechanical Engineering Research Vol 3, No 01 (2025): June
Publisher : Department of Mechanical Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/timer.v3i01.34510

Abstract

Roof tiles play a vital role in the construction industry by providing protection from the sun's heat and rain. The quality of roof tiles largely depends on the materials used and the manufacturing process, as these factors significantly affect the tiles' mechanical properties. Kangkung pagar (Ipomoea carnea) is one type of alternative natural fiber material that can be utilized in the creation of composite materials. This study aims to explore the potential of Ipomoea carnea powder as an alternative material for producing polymer roof tiles, as well as to examine how variations in the composition of powder and sand influence the mechanical properties of these tiles. The method for producing roof tiles is based on powder metallurgy. The composition of the powder and sand used varies in the following ratios: 10% powder to 50% sand, 20% powder to 40% sand, and 30% powder to 30% sand. Additionally, a fixed composition of 30% polyester resin and 10% asphalt is used. The initial process involves mixing the materials according to these predetermined ratios. The resulting mixture is then molded and compacted under a pressure of 200 kg/cm². Characterization of the mechanical properties includes proximate analysis, calculation of porosity and density, flexural strength testing, and hardness testing.The study's results indicated that the properties of polymer roof tiles are significantly influenced by the composition of the powder and sand used during their manufacture. The findings revealed a porosity value of 0.209%, a density of 0.994%, a flexural strength of 2.270 MPa, and an optimum hardness of 19.1 BHN. The addition of 10% powder increased the hardness value by only 0.4% while decreasing the flexural strength by 0.5%. Overall, the use of Ipomoea Carnea powder was not effective in enhancing the mechanical properties of the polymer roof tiles, as both the flexural strength and hardness values remained below those of commercially available polymer roof tiles.
Co-Authors Agung Sudrajad Ainun Najib Alhamidi, A. Ali Bagaskara, Rafly Priyantama Ramadhan Dhimas Satria Erny Listijorini Erwin Erwin, Erwin Erwin, Erwin Fendi Ferdiansyah Frengki Hardian Greida Frista Hamdan Akbar Notonegoro Haryadi, Haryadi Hasanudin Gufron Fachrudin Hendra Hendra Hendra, Hendra Hernadewita, Hernadewita Himmatul Mursyidah Jannah, Miftahul Kustyo, Nicko Dharma Listijorini, Erny Lusiani, Rina Marvel, Marchello Moh Fawaid Notonegoro, Hamdan Akbar Rina Lusiani Setiawan, Ipick Setiawan, Ipick Sidik Susilo Slamet Wiyono Sudrajad, Agung Sunardi, Sunardi Suprayogi, Dedy Triawan Susilo, Sidik Syahril Al Qirom Syarif Abdullah Ula, Shofiatul Wiyono, Slamet Yusuf, Yusvardi Yusvardi Yusuf