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All Journal Jurnal Teknik Mesin Mechanova Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Otopro Community Empowerment Jurnal Mesin Nusantara Automotive Experiences Journal of Mechanical Engineering, Science, and Innovation IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Engineering and Technological Sciences
Willyanto Anggono
Universitas Kristen Petra
Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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ANALISA DISTRIBUSI TEGANGAN PADA MODIFIKASI TANGKI BAHAN BAKAR DENGAN MENGGUNAKAN METODE ELEMEN HINGGA Budimihardjo, Felix; Anggono, Willyanto
Mechanova Vol 1 (2014): Semester gasal 2014-2015
Publisher : Mechanova

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (78.005 KB)

Abstract

Truk tangki BBM adalah tangki yang terdapat pada kendaraan bermotor yang didesain untuk membawa muatan yang berupa cairan di jalan raya. Untuk meningkatkan kekuatan tangki maka perlu diteliti bentuk sekat, baffle & ballfront pada tangki. Kekuatan tangki dapat ditingkatkan dengan merubah desain tangki, dimana perubahan tersebut ialah penambahan penyangga pada sekat, baffle & ballfront.Penelitian ini bertujuan untuk mengetahui pengaruh penambahan penyangga pada sekat, baffle & ballfront terhadap tegangan maksium yang terjadi pada truk tangki BBM, dan penelitian ini dilakukan dengan menggunakan ANSYS yang merupakan software berbasis metode elemen hingga. Dari percobaan yang telah dilakukan diperoleh bahwa penambahan penyangga pada sekat, baffle & ballfront dapat mengurangi tegangan maksimum.
OPTIMASI PARAMETER PROSES PEMBUATAN BIOETANOL SORGUM DAN PENGARUH TERHADAP UNJUK KERJA MOTOR BENSIN Sutrisno, Teng; Anggono, Willyanto; Lay, Kurniawaan; Simanjuntak, Melvin Emil
Otopro Vol 16, No 2 (2021)
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v16n2.p39-43

Abstract

Bioethanol is a renewable fuel that resembles gasoline, bioethanol is produced from fermentation and distillation processes. One of the raw materials that produce bioethanol is Sorghum. Sorghum was chosen because it is superior to other plants. This study aims to analyze fermentation longtime and enzyme composition for the best composition to produce bioethanol from sorghum, and determine the quality of sorghum bioethanol. This research Sorghum  bioethanol produced with an alcohol content of 94%. The test and analysis variables used were 31 samples. The results of this study are as follows : The best fermentation time is 4 days, the enzyme and yeast variable for the most volume of alcohol is 7% yeast 5% enzyme, the enzyme and yeast variable for the highest alcohol content is 7% yeast 7% enzyme. Laboratory test results when compared with PERTAMINA's standard regulations, especially Pertalite RON 90, Several parameters have rejected the regulations. Therefore sorghum bioethanol is used as an additive for Gasoline. Sorghum bioethanol is made addictive to gasoline RON 90, namely B10 (bioethanol sorghum 10%) and B20 (bioethanol sorghum 20%). It would cause an increase in the performance of gasoline engines.
Combustion Analysis of Ammonia/Gasoline Mixtures at Various Injection Timing Conditions in a High Compression Ratio SI Engine with Sub-Chamber Ichiyanagi, Mitsuhisa; Yilmaz, Emir; Suzuki, Takashi; Okada, Takanobu; Yamamoto, Hikaru; Kodaka, Masashi; Shiraishi, Hikaru; Mukae, Shinnosuke; Tamba, Ryota; Widjaja, Henry; Jonathan, Leon; Gunawan, Sebastian; Gotama, Gabriel Jeremy; Anggono, Willyanto
Automotive Experiences Vol 7 No 2 (2024)
Publisher : Automotive Laboratory of Universitas Muhammadiyah Magelang in collaboration with Association of Indonesian Vocational Educators (AIVE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.10533

Abstract

Due to the problem of carbon dioxide (CO2) emissions, alternative fuels such as ammonia (NH3) have garnered a lot of attention lately. This is due to its carbon-free molecular structure, ease of transport, and high energy density. Unfortunately, ammonia is not without flaws since it is considered a difficult fuel to burn in conventional internal combustion engines. To further investigate the burning characteristics of ammonia, this study is conducted for ammonia/gasoline co-combustion using a modified engine equipped with a sub-chamber. The engine ran at 1000 RPM and had a 17.7 compression ratio with two injection timings of -55 and 10 crank angle degrees (°CA) after the top dead center (ATDC), while the ammonia energy ratios were adjusted across a range from 40% to 70%. The results show that the earlier injection timing allowed better premixing between the air and fuel mixture, thus enhancing the overall combustion characteristics. For the later injection timing, the nitrogen oxide (NOx) emissions decrease at the higher ammonia energy ratio due to the denitrification of the nitrogen oxides (DeNOX) process. Overall, the earlier injection timing appears optimal for the 40% to 70% ammonia energy ratio under the present condition.
Utilization of cow dung as a biogas raw material for alternative energy in Buddagan 1 Hamlet, Kabupaten Pamekasan Anggono, Willyanto; Hernando, Ivan Christian; Tulistyantoro, Lintu
Community Empowerment Vol 10 No 4 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12543

Abstract

Buddagan 1 Hamlet, Pamekasan Regency, faces the problem of cow dung waste piling up around the house, causing an unpleasant odor and unhygienic kitchen conditions. The proximity of the cow shed to the kitchen, coupled with the status of a heritage village that requires a solution without changing the building structure, demands an innovative approach. Therefore, this community service aims to apply biogas technology to utilize cow dung waste as an alternative energy source, improve environmental cleanliness, and reduce household expenses. Community service activities include socialization of biogas technology, training on use and maintenance, as well as installation and evaluation assistance. As a result, biogas technology was successfully implemented, meeting cooking gas needs, reducing household costs, and producing organic fertilizer. Socialization, training, and ongoing assistance ensure the operational success of biogas technology. Buddagan 1 Hamlet is now an inspiring example of environmentally friendly livestock waste management.
The Effect of Ignition Timing on Combustion of Ammonia/Ethanol Mixtures in Spark-Assisted Compression Ignition Engine with a Sub-chamber Okada, Takanobu; Ichiyanagi, Mitsuhisa; Yilmaz, Emir; Suzuki, Takashi; Shiraishi, Hikaru; Ngwompe Souop, Eric Le Roy; Widjaja, Evan; Sutedjo, Jason; Marcelo, Christian Dennis; Tjiotijono, Ferdinand Ronaldo; Gotama, Gabriel Jeremy; Anggono, Willyanto
Journal of Engineering and Technological Sciences Vol. 57 No. 6 (2025): Vol. 57 No. 6 (2025): December
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2025.57.6.1

Abstract

Carbon dioxide (CO2) is the primary contributor to greenhouse gas emissions. Ammonia (NH3) has emerged as a promising alternative fuel due to its high energy density, ease of transportation, and carbon-free molecular structure. However, its practical application is challenged by slow combustion characteristics and high ignition temperatures. This study investigates the combustion behaviour of ethanol-ammonia mixtures using a high-compression-ratio engine (17.7:1) equipped with a sub-chamber. The engine operated at a constant speed of 1000 rpm. Ammonia energy ratios of 40%, 50%, and 60% were tested across ignition timings of 0°, 2°, 4°, 6°, and 8° crank angle (CA) before top dead center (BTDC). Results indicate that advancing the ignition timing increases in-cylinder pressure and heat release rate while reducing combustion duration. Lower ammonia energy ratios yielded higher thermal efficiency. Conversely, higher ammonia content and advanced ignition timings led to increased NOx emissions.
Pemanfaatan teknologi digital marketing untuk menunjang operasional mini-hidroponik berbasis energi terbarukan dan internet of things Tanoto, Yusak; Khoswanto, Handry; Anggono, Willyanto; Anggung, Katlyn Maclain; Setiawan, Vincentia Evangeline
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 7 No 1 (2024)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v7i1.20871

Abstract

Pengembangan income generation merupakan salah satu potensi yang dapat dikembangkan di Sekolah SMA Advent Surabaya dalam rangka pemberdayaan siswa, yang dapat diupayakan melalui pemanfaatan fasilitas dan sarana pembelajaran luar ruangan. Salah satu cara yang dapat dilakukan ditengah tantangan keterbatasan lahan di sekolah ini adalah menerapkan kombinasi metode pengembangan komunitas dan service learning, dimana salah satu aktivitanya adalah pelatihan pemanfaatan platform dan teknologi digital marketing yang diikuti oleh siswa pengurus OSIS untuk menunjang operasional mini-hidroponik berbasis energi terbarukan dan internet of things. Dalam kegiatan ini, wawasan siswa tentang konsep, metode dan contoh kegunaan teknologi digital marketing diuji dan dievaluasi. Salah satu indikasi keberhasilan pelatihan digital marketing yang terkait dengan pemahaman siswa tentang konsep dan kegunaan teknologi digital marketing sebagai sarana edukasi dan promosi hasil budidaya tanaman hidroponik adalah nilai post-test yang lebih baik daripada pre-test, di samping dihasilkannya desain konten poster Instagram yang menarik yang dibuat oleh kelompok siswa. Kegiatan pelatihan digital marketing telah berlangsung dengan baik dan memberikan manfaat bagi peserta menuju pengembangan komunitas sekolah yang mengelola sistem mini-hidroponik. Dalam konteks pemberdayaan siswa dan pengembangan sekolah, tim abdimas mengupayakan keberlanjutan capaian kegiatan melalui kerjasama dengan sekolah untuk mengadakan kegiatan pendampingan lanjutan dalam rangka pemanfaatan dan pengembangan instalasi mini-hidroponik.
Comparative Performance of Material Extrusion and Vat Photopolymerization Systems for Automotive Product Tanoto, Yopi Yusuf; Sugiarto, Nicholas Adriel; Hernando, Ivan Christian; Anggono, Willyanto
Journal of Mechanical Engineering, Science, and Innovation Vol 5, No 2 (2025): (October)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2025.v5i2.8201

Abstract

Additive Manufacturing (AM) has emerged as a rapidly developing technology with applications ranging from product visualization and prototype fabrication to actual production. Various types of AM are available on the market, broadly categorized into industrial-grade and consumer-grade machines. This study focuses on consumer-grade printers, which are more affordable and widely accessible. Among these, the two most commonly used technologies are Material Extrusion (ME) and Vat Photopolymerization (VP). While the performance of ME printers has been widely investigated, comparative studies between ME and VP remain limited. This research provides a performance comparison of the two technologies. The findings indicate that VP printers outperform ME in terms of printing speed and energy efficiency. On the other hand, FDM printers offer advantages in material cost and dimensional accuracy in the Z direction. Furthermore, the study examines the potential of consumer-grade printers to support automotive product prototyping efficiently and practically.
Pengaruh Tekanan Pemadatan terhadap Karakteristik Pembakaran Briket Limbah Sabut Kelapa sebagai Bahan Bakar Biomassa Alternatif Hernando, Ivan Christian; Anggono, Willyanto; Yuke, Stevanus
Jurnal Mesin Nusantara Vol 8 No 2 (2025): Jurnal Mesin Nusantara
Publisher : Universitas Nusantara PGRI Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29407/jmn.v8i2.26043

Abstract

Peningkatan kebutuhan energi di tengah keterbatasan sumber daya fosil mendorong pengembangan energi alternatif yang berkelanjutan, salah satunya melalui pemanfaatan biomassa dalam bentuk briket. Penelitian ini bertujuan untuk menganalisis potensi limbah sabut kelapa (coconut fiber) sebagai bahan baku briket biomassa dan membandingkannya dengan biji bintaro (Cerbera manghas) yang menggunakan perekat tapioka, serta mengevaluasi pengaruh tekanan pemadatan terhadap karakteristik pembakarannya. Briket dibuat dari 100% sabut kelapa dengan perekat tapioka, kemudian dipadatkan pada tekanan 1 MPa dan 2 MPa. Pengujian nilai kalor dilakukan menggunakan Parr Oxygen Bomb Calorimeter, sedangkan uji pembakaran dilakukan untuk mengetahui waktu penyalaan, temperatur, dan durasi pembakaran. Seluruh pengujian dilakukan dengan tiga kali replikasi. Hasil menunjukkan bahwa briket dari limbah sabut kelapa memiliki nilai kalor tertinggi, yaitu 4741 kkal/kg, lebih tinggi dibandingkan briket campuran 90% biji bintaro dan 10% tapioka yang menghasilkan 4164 kkal/kg. Uji pembakaran menunjukkan bahwa briket yang dipadatkan pada tekanan 2 MPa memiliki durasi pembakaran lebih lama (1433 detik) dan temperatur sedikit lebih tinggi (66,5 °C) dibandingkan tekanan 1 MPa, meskipun memerlukan waktu penyalaan yang lebih lama. Temuan ini mengindikasikan bahwa peningkatan tekanan pemadatan menghasilkan struktur briket lebih rapat dan pembakaran lebih stabil. Secara keseluruhan, limbah sabut kelapa berpotensi tinggi sebagai bahan bakar biomassa alternatif yang efisien dan berkelanjutan.
Enhancing Nmax Gen 2 Brake Cooling Through CFD-Based Duct Profile Optimization Sutrisno, Teng; Chevilino, Marcell; Jonoadji, Ninuk; Siahaan, Ian Hardianto; Sugondo, Amelia; Anggono, Willyanto; Alimin, Roche; Simanjuntak, Melvin E.; Suryajaya, Micheal
Jurnal Teknik Mesin Vol. 23 No. 1 (2026): APRIL 2026 (SINTA 3)
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.23.1.27-34

Abstract

Efforts to improve the performance of motorcycle brake system performance are essential for enhancing riding safety, particularly at high speeds. The main objective of this study is to evaluate the effect of a brake duct on brake disc cooling using computational fluid dynamics (CFD). This study also aims to determine the optimal brake duct design for motorcycles applications. To assess the accuracy of the numerical simulations, wind tunnel experiments were conducted to quantify the error between the simulation and experimental results. The validation results showed that the simulation error was 5.64%, indicating good agreement with the experimental data. The simulation was performed by modelling the motorcycle braking system and brake duct, then analyzed using ANSYS Fluent. To identify the optimal brake duct configuration, variations in the inner radius R, duct length L, and diffuser size D were evaluated. The best configuration was defined as the design that produced the lowest pressure loss and the highest ΔP statis. The simulation results indicate that the optimal configuration corresponds to R = 20 mm, L = 180 mm, and D = 8.75mmx 10mm.
Karakteristik Pembakaran Briket yang Terbuat dari Limbah Sabut Kelapa dengan Perekat Limbah Nanas Pada Berbagai Tekanan Pemadatan Anggono, Willyanto; Hernando, Ivan Christian; Yuke, Stevanus
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.419

Abstract

The use of biomass waste as an alternative energy source is an effective way to reduce dependence on fossil fuels and address environmental issues. This study analyzes the combustion characteristics of briquettes made from coconut coir waste using pineapple waste as a binder. The research methodology includes raw material drying, mixing with a 5% binder concentration, and briquette molding under compaction pressures of 1 MPa and 2 MPa. The parameters tested include calorific value, burning rate, ignition time, and flame temperature. The results indicate that these briquettes achieved a peak calorific value of 4606 kcal/kg, surpassing that of bintaro leaf waste briquettes (4164 kcal/kg). The application of 2 MPa pressure yielded the best performance, characterized by a longer combustion duration (1295 seconds) and temperatures reaching 600°C, though it required a longer ignition time than the 1 MPa variant. The denser structure resulting from increased compaction pressure was proven to enhance combustion efficiency and stability. The primary contribution of this research lies in the use of pineapple waste as an innovative organic binder, which has been proven to significantly increase the calorific value and combustion duration of biomass briquettes compared to conventional binders.
Co-Authors Anggung, Katlyn Maclain Basjir, Mochammad Chevilino, Marcell Ena Marlina Felix Budimihardjo Gotama, Gabriel Jeremy Gunawan, Sebastian Handry Khoswanto Hernando, Ivan Christian Ian Hardianto Siahaan Ichiyanagi, Mitsuhisa Jonathan, Leon Julianingsih Julianingsih Kodaka, Masashi Lay, Kurniawaan Lintu Tulistyantoro Marcelo, Christian Dennis Melvin Emil Simanjuntak - Mukae, Shinnosuke Ngwompe Souop, Eric Le Roy Ninuk Jonoadji Okada, Takanobu Roche Alimin Setiawan, Vincentia Evangeline Shiraishi, Hikaru Simanjuntak, Melvin E. Sugiarto, Nicholas Adriel Sugondo, Amelia Suryajaya, Micheal Sutedjo, Jason Takashi Suzuki, Takashi Tamba, Ryota Tanoto, Yopi Yusuf Teng Sutrisno Tjiotijono, Ferdinand Ronaldo Widjaja, Evan Widjaja, Henry Yamamoto, Hikaru Yilmaz, Emir Yuke, Stevanus Yusak Tanoto