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All Journal Jurnal Teknik Mesin Mechanova Journal of Engineering and Technological Sciences Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) International Journal of Industrial Research and Applied Engineering Otopro Community Empowerment Jurnal Mesin Nusantara Automotive Experiences IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Journal of Engineering and Technological Sciences

Willyanto Anggono

Petra Christian University

Author-ID : 2790084

Aerospace Engineering Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT 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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PREVENTIVE MAINTENANCE SYSTEM DENGAN MODULARITY DESIGN SEBAGAI SOLUSI PENURUNAN BIAYA MAINTAINANCE (Studi Kasus di Perusahaan Tepung Ikan) Julianingsih Julianingsih; Willyanto Anggono
Jurnal Teknik Industri: Jurnal Keilmuan dan Aplikasi Teknik Industri Vol. 7 No. 1 (2005): JUNE 2005
Publisher : Institute of Research and Community Outreach - Petra Christian University

Mofularity design has been applied in many European countries, especially in industrial assembling and manufacturing. Modularity design cause manufacture process and assembly process easier and cheaper. Many industries in Indonesia usually doing corrective maintenance or preventive maintenance. So, in this research, modularity design will be applied in preventive maintenance in fish mill Indonesian factory. In this research, corrective maintenance and preventive maintenance cost will be compared to preventive maintenance cost using modularity design. From the research, the application of preventive maintenance using modularity design reduces cost up to 35.98% from the initial condition (corrective maintenance) Abstract in Bahasa Indonesia : Modularity design telah banyak diterapkan di negara-negara Eropa terutama dalam hal perakitan dan manufaktur di bidang industri. Modularity design menyebabkan proses manufaktur dan perakitannya lebih sederhana dan murah. Perusahaan-perusahaan di Indonesia biasanya lebih banyak melakukan kegiatan corrective maintenance atau preventive mainternance. Dalam penelitian ini, modularity design dicoba diterapkan dalam kegiatan preventive maintenance di perusahaan tepung ikan di Indonesia. Pada penelitian ini dibandingkan biaya yang diperlukan untuk kegiatan corrective maintenance, preventive maintenance dan preventive maintenance dengan modularity design. Hasil penelitian menunjukkan bahwa dengan penerapan preventive maintenance dengan modularity design dapat menurunkan biaya sebesar 35,98% dari keadaan awal (corrective maintenance). Kata kunci: corrective maintenance, preventive maintenance, modularity design.

Investigation on Biomass Briquette as Energy Source from Waste Leaf Cerbera Manghas Willyanto Anggono; Fandi D. Suprianto; Sutrisno Sutrisno; Andreas W. Kasrun
International Journal of Industrial Research and Applied Engineering Vol 1, No 1 (2016)
Publisher : Institute of Research and Community Outreach - Petra Christian University

Indonesia is a tropical country and has abundant varieties of plants but has not been utilized to the fullest. One of the plants that are often encountered in the community is Cerbera manghas. Cerbera manghas is known as one of the trees that have solid roots; thus, it is widely used for adding greenery both on the roadside and the residential areas of Surabaya. Although beneficial for shade and the reduction of air pollution in urban areas, waste from the leaves of this plant become a serious issue for the cleanliness of the city. Organic solid waste that comes from the falling leaves have the potential to be used as a solid fuel alternative in the form of briquettes when processed appropriately. This study aims to investigate the potential of Cerbera manghas leaves waste to be used as raw material of biomass briquettes with tapioca as a binder, to evaluate the property of the resulted briquettes using ultimate analysis, proximate analysis, and also to find the effect of the composition of tapioca to the heating value of the biomass briquettes. Heating values of five mixtures with various tapioca compositions of 10%, 20%, 30%, 40%, and 50% were evaluated using an oxygen bomb calorimeter. The experimental results showed that the biomass briquettes made of Cerbera manghas leaves waste can be made using tapioca as a binder. The greater the percentage of the mass of tapioca in the briquettes, the lower heating value generated. Biomass briquettes made of Cerbera manghas leaves waste can be made into a source of sustainable energy with the optimal composition of 90% waste leaves and 10% tapioca.

Experimental Study of Combustion Fluctuation Reduction Using In-Cylinder Pressure Estimation in Gasoline Engine Mitsuhisa Ichiyanagi; Willyanto Anggono; Edyta Dzieminska; Takashi Suzuki
International Journal of Industrial Research and Applied Engineering Vol 3, No 2 (2018)
Publisher : Institute of Research and Community Outreach - Petra Christian University

Gasoline engines needs to reduce its negative emission waste and raise its thermal efficiency. Previous studies have shown an improvement of engines by regulating the ignition timing and retaining the engine at certain air-to-fuel ratio. Additional development of the thermal efficiency is anticipated by reducing the oscillation of pressure due to combustion (referred to as combustion fluctuation) during each cycle. Reducing the combustion fluctuations promotes the generation of a stable combustion field and improves fuel consumption. Since the combustion fluctuations are significantly affected by the in-cylinder pressure at compression top dead center (referred to as TDC pressure), the present study proposes a method to estimate the TDC pressure in the next cycle. The estimation was conducted by measuring the in-cylinder pressure at exhaust valve opening in the given cycle. This study also developed the method to reduce the combustion fluctuations by using the TDC pressure estimation and controlling the ignition timing. In our experiments, it was found that the developed methods reduced the fluctuations of the indicated mean effective pressure (IMEP), the maximum in-cylinder pressure, and the TDC pressure by 62.1%, 51.2%, and 38.5%, respectively.

OPTIMASI PARAMETER PROSES PEMBUATAN BIOETANOL SORGUM DAN PENGARUH TERHADAP UNJUK KERJA MOTOR BENSIN Teng Sutrisno; Willyanto Anggono; Kurniawaan Lay; Melvin Emil Simanjuntak
Otopro Vol 16 No 2 Mei 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

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.

Pengaruh Flowrate dan Diameter Exit Nozzle terhadap Kemampuan Vacuum Pada Ejector Pump Willyanto Anggono; Ronaldo Febrian; Ivan Christian Hernando; Teng Sutrisno
Jurnal Teknik Mesin (Sinta 3) Vol. 20 No. 2 (2023): OCTOBER 2023
Publisher : Institute of Research and Community Outreach, Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9744/jtm.20.2.64-69

Ejector pump merupakan salah satu jenis alat/mesin fluida yang banyak digunakan di penindustrian yang membutuhkan fluida bertekanan tinggi. Tujuan yang ingin dicapai dalam penggunaan ejector adalah kemampuan hisap yang tinggi pada secondary flow (inlet suction flow). Bagian bagian utama pada ejector adalah nozzle, secondary flow/inlet suction flow, ruang pencampuran dan diffuser. Adapun faktor lain yang berpengaruh dalam kemampuan hisap ejector dalam menvakum/menghisap yaitu, flowrate dan diameter exit nozzle pada primary flow (injection motive fluid). Penelitian ini dimaksudkan untuk memperoleh seberapa besar pengaruh yang diberikan dari perbedaan ukuran atau level pada primary flow, meliputi flowrate sebesar15 L/min, 20 L/min dan 25 L/min, dan diameter exit nozzle 5 mm, 6, mm dan 7mm terhadap pressure vacuum dan flowrate vacuum pada secondary flow. Penelitian ini dilakakukan secara langsung dengan menggunakan ejector pump. Hasil dari pengujian ini menujukan bahwa flowrate (25 L/min) menghasilkan flowrate vacuum dan pressure vacuum paling besar. Kemudian diameter exit nozzle 7 mm menghasilkan flowrate vacuum paling besar dan diameter exit nozzle 5 mm menghasilkan pressure vacuum paling besar.

Experimental Investigation of Ammonia/Oxygen/Argon Combustion: The Role of Equivalence Ratio and Nozzle Shape in a Constant Volume Combustion Chamber with Sub-chamber Mitsuhisa Ichiyanagi; Emir Yilmaz; Takuma Ohashi; Masato Sanno; Guansen Lin; Sebastian Gunawan; Henry Widjaja; Leon Jonathan; Gabriel Jeremy Gotama; Willyanto Anggono; Takashi Suzuki
Journal of Engineering and Technological Sciences Vol. 56 No. 6 (2024)
Publisher : Directorate for Research and Innovation, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2024.56.6.3

The global rise in carbon emissions presents a rising challenge for current and future generations. In the pursuit of zero carbon emissions, ammonia (NH3) has emerged as an attractive alternative energy source. Ammonia offers a carbon-free fuel option with a higher energy density than liquid hydrogen while maintaining ease of transport and storage. However, ammonia still has its drawbacks, such as a high autoignition temperature, slow burning velocity, and low heating value, that demand further investigation of its combustion characteristics. This experiment was done to study the effect of nozzle shape and equivalence ratio (ɸ) on the combustion of an ammonia/oxygen/argon mixture using a constant volume combustor equipped with a sub-chamber. The fuels were premixed for 10 minutes and conditioned to an initial pressure of 0.2 MPa and an initial mixture temperature of 423 K. The results show that the different nozzle shapes each have their advantages in terms of pressure and jet speed. Overall, the lean mixtures (ɸ0.6 and ɸ0.8) consistently performed better compared to the stoichiometric mixtures (ɸ1.0) in all categories investigated in this study. The round nozzle generates higher pressure, while the special shape nozzle enhances jet speed, highlighting trade-offs between the two.

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

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.

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

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.

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

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.

The Role of Heterogeneous Catalyst Transesterification in Single Droplet Combustion of Soybean Oil Based Biodiesel Haidar Hanief; Arya Radya Guntur Pamungkas; Mitsuhisa Ichiyanagi; Willyanto Anggono; Cepi Yazirin; Muhammad Akhlis Rizza; Ena Marlina
Automotive Experiences Vol. 8 No. 3 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ae.15027

The consumption of petroleum fuel in Indonesia is increasing, makes the globe climate change a lot. Thus, requiring a renewable energy alternative source such as biodiesel. This study analyzed the single droplet combustion characteristics of soybean oil-based biodiesel produced via transesterification using two heterogeneous catalysts: papaya leaf (PL) and papaya leaf combined with animal bone (PLAB). For comparison, petroleum diesel fuel also tested. Results show that catalyst origin significantly influences combustion behavior. PL exhibited the longest droplet lifetime 7,135 mm/s2 and the highest peak temperature (546 Â°C), while PLAB showed shorter droplet lifetime 5,001 s/mm2and a lower peak temperature (467 Â°C), closer to petroleum diesel (4,081 s/mm2 and 254 Â°C), respectively). In terms of ignition delay, petroleum diesel ignited fastest (3,528 s/mm2), followed by PLAB (4,837 s/mm2) and PL (0,612 s/mm2). The combustion behavior of PLAB is correlated with its higher FAME purity (98%) and methyl linoleate content (43.69%), as reflected by the reduced droplet lifetime. This suggests that the catalyst primarily improves biodiesel quality via enhanced transesterification efficiency, which in turn affects combustion characteristics.

Co-Authors Amelia Amelia Andreas W. Kasrun Anggung, Katlyn Maclain Arya Radya Guntur Pamungkas Basjir, Mochammad Bin Guo Chris Cornelius Christian Auren Malik Djoko Wahyudi Edyta Dzieminska Emir Yilmaz Emir Yilmaz Ena Marlina Ezra Septhian Fandi D. Suprianto Fandi Dwiputra Suprianto Felix Budimihardjo Felix Budimihardjo Ferdinand Ronaldo Gabriel J. Gotama Gabriel J. Gotama Gabriel Jeremy Gotama Gabriel Jeremy Gotama Gotama, Gabriel Jeremy Guansen Lin Haidar Hanief Handry Khoswanto Henry Widjaja Hernando, Ivan Christian Ian Hardianto Siahaan Ichiyanagi, Mitsuhisa Ivan Christian Hernando Julianingsih Julianingsih Julianingsih Julianingsih Julianto Setyawan Kenny Purnomo Kurniawaan Lay Lay, Kurniawaan Leon Jonathan Lintu Tulistyantoro Marcell Chevilino Masato Sanno Melvin E. Simanjuntak Melvin Emil Simanjuntak - Michael Kusuma Hadi Michael Michael Micheal Suryajaya Mitsuhisa Ichiyanagi Mitsuhisa Ichiyanagi Mitsuhisa Ichiyanagi Mitsuhisa Ichiyanagi Muhammad Akhlis Rizza Muhammad Robby Falito Ninuk Jonoadji Philip Kristanto Rahardjo Tirtoatmodjo Reina Saito Richard Anthonius Wongso Santoso Roche Alimin Ronaldo Febrian Rully Hartadi Ryera Kreshna Sebastian Gunawan Setiawan, Vincentia Evangeline Slamet Basuki Soen Peter Stanley Stevanus Yuke Sutrisno Sutrisno Sutrisno Sutrisno Takashi Suzuki Takashi Suzuki Takashi Suzuki Takashi Suzuki Takashi Suzuki, Takashi Takuma Ohashi Teng Sutrisno Teng Sutrisno Teng Sutrisno Teng Sutrisno Teng Sutrisno Yaser Martinus Santoso Yazirin, Cepi Yuke, Stevanus Yusak Tanoto

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