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All Journal Media Mesin: Majalah Teknik Mesin Briliant: Jurnal Riset dan Konseptual JPPM (Jurnal Pengabdian dan Pemberdayaan Masyarakat) Jurnal Teknik Mesin Indonesia Scientific Journal of Mechanical Engineering Kinematika Civitas Ministerium: Jurnal Pengabdian Kepada Masyarakat Journal of Mechanical Engineering Jurnal Teknik Mesin, Industri, Elektro dan Informatika Jurnal Penelitian Rumpun Ilmu Teknik Warta LPM TEKNOSIA Jurnal Sains Student Research Jurnal Mesin Sains Terapan
Trisma Jaya Saputra
Jurusan Teknik Mesin, Fakultas Teknik, Universitas Tidar
Aerospace Engineering Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Implementation of a Sweet Potato Washing Machine for Brayan Grubi SMEs in Salaman District, Magelang Regency Rany Puspita Dewi; Trisma Jaya Saputra; Sigit Iswahyudi; Adityo Noor Setyo Hadi Dharmo; Herru Santosa Budiono; Bagus Yustia; Cahyo Sejati
Warta LPM WARTA LPM, Vol. 29, No. 1, Maret 2026
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/warta.v29i1.13170

Abstract

Brayan Grubi, a small and medium enterprise (SME), located in Jetis, Menoreh Village, Salaman, Magelang Regency. It processes approximately 150 kg of sweet potatoes daily to make traditional food grubi. The grubi production process, from washing to packaging, is still done manually, known as "gejrug." This manual washing process is time-consuming, labor-intensive, and unhygienic. The purpose of this community partnership program is to design and manufacture a sweet potato washing machine so that the washing process of sweet potatoes as a raw material for making grubi becomes more efficient and hygienic. The process becomes more efficient because the washing process takes less time and is more hygienic because the washing process is carried out using the help of a machine. This activity is carried out in four stages. The first stage is data collection as a basis for machine design and is continued in coordination with partners. The second stage is the construction and testing of the sweet potato washing machine. The third stage is the implementation of the sweet potato washing machine. The last stage is evaluation of machine implementation by the team. The efficiency of the sweet potato washing process is measured by calculating the washing time of 150 kg of sweet potatoes. The implementation of the sweet potato washing machine increases the washing process efficiency from 20 minutes to 5 minutes per 15 kg of sweet potatoes. The interview results show that the activity increases partners' understanding from 20% to 100%, about the more hygienic washing process of the sweet potato washing machine.
DAMPAK SUHU PIROLISIS TERHADAP KARBON AKTIF DARI BUNGA PINUS UNTUK MATERIAL PENDUKUNG KATALIS FUEL CELL Pebi Riyanto; Trisma Jaya Saputra; Rany Puspita Dewi; Sigit Mujiarto; Raka Mahendra Sulistiyo
Scientific Journal of Mechanical Engineering Kinematika Vol 11 No 1 (2026): SJME Kinematika June 2026
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v11i1.868

Abstract

The high cost and limited durability of platinum-based catalysts remain major challenges for the large-scale commercialization of fuel cell. Therefore, alternative and more affordable catalyst support materials are needed. Biomass derived activated carbon offers a promising solution due to its porous structure, good electrical conductivity, and abundant raw material availability. This study aims to investigate the potential of Pinus merkusii pine cones as a precursor for activated carbon through pyrolysis and chemical activation using potassium hydroxide (KOH), as well as to evaluate its suitability as a fuel cell catalyst support material. Pyrolysis was conducted at temperatures of 400ºC, 600ºC, and 800ºC under a nitrogen inert atmosphere, followed by chemical activation. The resulting activated carbon was characterized using proximate analysis and Brunauer-Emmett-Teller (BET) analysis. The results indicate that increasing the pyrolysis temperature led to a reduction in biochar yield, moisture content, ash content, and volatile matter, while consistently enhancing the fixed carbon content and specific surface area. The optimal condition was achieved at a pyrolysis temperature of 800ºC, producing activated carbon with the highest fixed carbon content of 81.87%, a specific surface area of 42.83 m2/g, and a mesoporous structure with an average pore diameter of 3.23 nm. Nevertheless, the obtained specific surface area remains below the ideal value (>100 m²/g) for application as a fuel cell catalyst support, indicating that the synthesized material still requires further optimization in both the process and activation conditions.
Mesin Chopper untuk Meningkatkan Kualitas dan Kuantitas Pakan Usaha Ternak Kambing “Arrahman” Rany Puspita Dewi; Trisma Jaya Saputra; Tri Puji Rahayu
Warta LPM WARTA LPM, Vol. 27, No. 3, November 2024
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/warta.v27i3.6481

Abstract

The "Arrahman" partner is located in Kerten, Krincing Village, Secang District, Magelang manages around 200 to 300 goats. The process of preparing cattle fodder such as elephant grass and corn stalks is done manually using a knife. It causes the feed preparation process take longer considering the large number of goats being managed. The aim of this activity is to contrive and manufacture a chopper to help the process of cutting grass feed more effectively and efficiently. Because it is able to produce more feed capacity in a shorter time with a finer size. Activities are carried out in several stages. The first step is data accumulation and coordination together with partner. Continuing to the next step, the development of solving partner problems through chopper design. The method for measuring the efficiency and effectiveness of cutting cattle fodder is done by quantifying the capacity and quality of cattle fodder produced and quantifying the amount of rising in insight and knowledge of residents which is carried out by looking at before and after the application of the chopper. The primary result is a chopper with a capacity of 100 kg/hour with a 5.5 hp gasoline engine. Chopper parts can be disassembled and assembled, making it easier for partners to maintain and repair. The chopper increases the capacity of cutting animal feed to 100 kg/hour. The activity is able to increase residents' understanding and insight by up to 90%. It is because through design and construction activities, residents are able to understand and gain new insight into the process of making chopper machines.
Effect of Temperature on Slagging During Solid Refuse-Derived Fuel Combustion with Dolomite Additives: Pengaruh Temperatur Terhadap Slagging Pembakaran Bahan Bakar Jumputan Padat Dengan Penambahan Dolomit GALIH PRATAMA; Nur Hayati; Trisma Jaya Saputra
Teknosia Vol. 20 No. 1 (2026): Vol. 20 No. 01 (2026): June 2026
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/teknosia.v20i1.49163

Abstract

This research analyzes the effect of combustion temperature on slagging formation in Solid Refuse-Derived Fuel (SRDF) and evaluates the effectiveness of dolomite additives in mitigating this issue. While SRDF is a promising alternative fuel for co-firing systems, its high ash and alkali metal content often lead to slagging, which can impair combustion performance. The experimental method utilized a muffle furnace with temperature variations of 600°C, 700°C, and 800°C for a duration of 120 minutes. The SRDF samples consisted of an 8:2 ratio of organic to inorganic waste, integrated with 10% dolomite additive based on a 50-gram total sample mass. Observed parameters included slagging mass, slag distribution, and calorific value. The results indicate that temperature significantly influences slagging formation. Furthermore, the addition of dolomite effectively reduces slag formation by increasing the ash fusion temperature through the creation of calcium-based compounds. With the additive, the fuel achieved a calorific value of 4,013.09 cal/g, meeting national (SNI) standards. Ultimately, dolomite proves to be an effective solution for optimizing SRDF utilization as a sustainable energy source in co-firing applications.
ANALISIS KEKUATAN STRUKTUR DENGAN SAMBUNGAN LAS PADA STRUCTURAL PROFILE PENYANGGA PIPA DRAINASE DI GROUTING TUNNEL MENGGUNAKAN METODE FINITE ELEMENT ANALYSIS Aswin Prasetyo Nugroho; Raka Mahendra Sulistyo; R Faiz Listyanda; Trisma Jaya Saputra
BRILIANT: Jurnal Riset dan Konseptual Vol 11 No 3 (2026): Volume 11 Nomor 3, Agustus 2026
Publisher : Universitas Nahdlatul Ulama Blitar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28926/briliant.v11i3.2484

Abstract

Welded joints are critical components in steel structures because they experience high stress concentrations and have the potential to cause structural failure. This study aimed to analyze the strength of welded joints on the structuraL Profile used as a drainage pipe support in a grouting tunnel using the Finite Element Analysis (FEA) method. The study employed a quantitative experimental approach through three-dimensional modeling and simulation using ANSYS software. The analysis focused on equivalent stress, total deformation, and safety factor under static loading conditions with variations in loading point distances of 17.5 cm, 35 cm, and 67.5 cm from the support point to evaluate the effect of load distribution on structural response. The results showed that the highest stress concentration occurred in the weld toe and weld root areas, which are critical regions susceptible to structural failure. Variations in loading position significantly affected the stress distribution and deformation of the structure, where greater loading distances from the support point tended to increase stress and deformation values. However, the structure still satisfied the minimum safety factor requirements based on AWS and AISC standards. The findings demonstrate that the FEA method is capable of effectively predicting structural behavior and providing recommendations for optimizing welded joint design in drainage pipe support structures.
Pengaruh Penggunaan CDI Standar Dan CDI Digital Terhadap Daya Dan Torsi Motor Bensin 250CC Muhamad Nur Safi’i; Faris Naufal Hanif; Naufal Dwi Qurniawan; Adzandani Muhammad; Trisma Jaya Saputra
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 3 (2023): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i3.2071

Abstract

The purpose of this study was to determine the difference in power, torque and fuel consumption produced by a 250 cc CRF motorbike using standard CDI ignition and digital CDI with Pertamax fuel. The research method used was an experiment conducted on a 250 cc CRF motorbike. The research data were analyzed by directly observing the experimental results and then concluding and determining the results of the research that had been carried out in the form of graphs and tables. In testing the combustion engine, a chassis dynamometer is used to determine the power and torque produced, while to measure the level of fuel consumption using a graphimetric method, namely by weighing the consumption of fuel consumed during a certain time interval. The results of the study show that there is an influence on the performance of the combustion engine, power, torque, and fuel consumption produced in an internal combustion engine with standard CDI ignition variations and using a digital CDI for Pertamax fuel. Maximum motor fuel power produced by standard CDI ignition of 5.6 hp at 9000 rpm engine speed. The maximum engine combustion torque generated from the racing CDI ignition is 5.9 Nm at 6000 rpm engine speed. While the lowest fuel consumption when using digital CDI is 0.281 kg/hour. In conclusion, the greatest power is obtained when using a standard CDI, the greatest torque is obtained when using a digital CDI and the lowest fuel consumption can be obtained by using the right ignition, in this case using a racing ignition CDI.
Perpindahan Panas Dinding Pemodelan CFD di dalam Ruang Bakar menggunakan ANSYS forte Trisma Jaya Saputra; Ahmad Rifqi Shulkan; Marcellinus Tedy Kurniawan; Muhammad Adrian Rizky; Aditya Win Prakoso
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 3 (2023): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i3.2081

Abstract

Dalam sebuah model komputasi telah dilakukan untuk menganalisa suatu perpindahan panas dinding dalam satu silinder, dan injeksi langsung dalam mesin diesel 4 tak(langkah). Integrasi langsung menggunakan kimia terperinci CHEMKIN digunakan dalam model pembakaran dan model turbulensi Reynolds Averaged Navier Stokes (RANS) digunakan untuk mensimulasikan aliran dalam silinder. Untuk mendapatkan hasil fluks panas, model perpindahan panas dinding kerapatan variabel klasik yang dimodifikasi juga dilakukan. Model divalidasi menggunakan data eksperimen dari mesin CUMMIN yang dioperasikan dengan pembakaran diesel konvensional. Satu kondisi mesin operasi disimulasikan. Perbandingan tekanan di dalam silinder yang disimulasikan dan laju pelepasan panas dengan data eksperimen menunjukkan bahwa model memprediksi tekanan silinder dan laju pelepasan panas dengan cukup baik. Plot kontur suhu sesaat disajikan. Juga, kontur hasil fluks panas yang diprediksi ditampilkan. Magnitudo fluks panas puncak seperti yang diprediksikan oleh model perpindahan panas dinding berada dalam kisaran nilai ukuran tipikal dalam pembakaran diesel.
PENGARUH SUHU TERHADAP TENAGA MESIN HONDA BEAT FI K81 Trisma Jaya Saputra; Rony Irawan; Rezananda Rifky Gunawan; David Ari Armansyah
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 3 (2023): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i3.2112

Abstract

Jurnal ini bertujuan untuk menganalisis pengaruh suhu terhadap tenaga mesin Honda Beat FI K81. Mesin Honda Beat FI K81 telah menjadi pilihan populer di kalangan pengendara sepeda motor di Indonesia. Namun, informasi terbatas tentang pengaruh suhu terhadap performa mesin ini. Oleh karena itu, penelitian ini dilakukan untuk mengidentifikasi dan menganalisis dampak perubahan suhu terhadap tenaga yang dihasilkan oleh mesin Honda Beat FI K81.Metode penelitian yang digunakan adalah eksperimental, di mana mesin Honda Beat FI K81 diuji pada berbagai suhu yang berbeda. Suhu mesin diatur melalui penggunaan alat pengatur suhu yang terkontrol secara presisi. Data tenaga yang dihasilkan oleh mesin diukur menggunakan perangkat pemantauan kinerja mesin yang akurat. Hasil penelitian menunjukkan bahwa suhu memiliki pengaruh signifikan terhadap tenaga mesin Honda Beat FI K81. Peningkatan suhu mesin menyebabkan penurunan performa mesin, dengan tenaga yang dihasilkan menurun seiring dengan kenaikan suhu. Hal ini dapat disebabkan oleh perubahan viskositas minyak pelumas, ekspansi termal komponen mesin, dan perubahan karakteristik pembakaran bahan bakar.Penelitian ini memberikan pemahaman yang lebih baik tentang hubungan antara suhu dan tenaga mesin Honda Beat FI K81. Informasi ini dapat digunakan oleh para pengguna sepeda motor Honda Beat FI K81 untuk memahami dampak suhu terhadap performa mesin dan mengoptimalkan penggunaan sepeda motor dalam berbagai kondisi suhu.
Perbedaan Penggunaan Valve Racing Carbon Fiber Dan Standar Terhadap Daya Mesin Motor 2 Langkah 150 Cc Dengan Bahan Bakar Pertalite Bramantyo Satrio Kinayungan Budi Wicaksono Ilyas; Khotibul Umam; Ardhi Harist Hirosana; Ivan Hardi Nurul Ikhsan; Trisma Jaya Saputra
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 3 (2023): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i3.2117

Abstract

On a 2-stroke motorcycle, this can be wasteful and one of the causes is the incomplete combustion process. In the fuel reporting system on a 2 stroke motorbike, it still uses a carburetor system and also uses a valve. The valve is used in learning the fuel and air mixture from the carburetor. Valve mechanism to regulate the amount of fuel and air mixture entering the combustion chamber. In addition, it also acts as a door to open and close the combustion chamber when flushing of the cylinder occurs. If the valve system is not optimal, a lot of the fuel and air mixture is wasted and the motorcycle engine does not work optimally. Because when suctioning the tongue, the valve must immediately open quickly and wide so that the fuel and air mixture that enters is maximized. Likewise, when exhausting, it must also close quickly so that the fuel and air mixture does not return to the carburetor. In writing this research, the data sources required consist of two data, namely 1. Secondary Data Secondary data is data obtained from other existing sources, including books, related journals, and websites. 2. Primary Data Primary data is data obtained from the results of testing the use of standard valves that are replaced with racing carbon fiber valves. Primary data obtained during the test includes the results of changes in power (Hp) and torque (Nm) obtained. Based on the data obtained from the results of the research that has been done, it shows that there is a difference in the power obtained on a motorbike using a standard valve with a motor using racing carbon fiber valves. Based on the graphic image above, the results of the study show that the power generated by the racing carbon fiber valve components has a slightly higher value when compared to those using standard valve components. The difference in power generated is due to the difference in the size of the valve produced by the valve used. . This is because the fuel and air mixture enters the cylinder chamber faster so that combustion becomes better by replacing the valve racing carbon faiber components.
Analisis Tegangan Pada Poros Engkol Piston Dengan Material Alumunium 6061 Menggunakan Ansys 18.1 Muhammad Zanu Nur Arsyad; Mohamad Nanda Safitra; Dzilan Auliya Sulthon; Rachmat Nurcahyo; Trisma Jaya Saputra
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 2 No. 3 (2023): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v2i3.2118

Abstract

The crankshaft is one of the main components that works in a combustion engine as a converter of the up-and-down motion of the piston into a rotary motion against the shaft used to drive chain wheel components, gears, or other components. In the research conducted, namely the analysis of the use of materials on the crankshaft using Ansys software with the aim of knowing the stress distribution, displacement, and safety factor. conclusion where the value of the radial free force of the crankshaft is 15 N, and the data that takes place on the crankshaft as follows: Based on the results of the analysis using Ansys, the maximum stress of 0.0866 N/mm2 is obtained. The displacement that occurs using Ansys analysis is 1.3461e-03mm. The safety factor that has been analyzed is 1.5 + 10.
Co-Authors Achmad Aziizudin Aditya Win Prakoso Adityo Noor Setyo Hadi Dharmo Adzandani Muhammad Agung Raharjo Ahmad Rifqi Shulkan Alfi Ferizqo Munawar Alvin Indi Lazuardi Alvin Nurfaiz Andhi Pradhana Brimadhatu Narendra Anis Lathifudin Arbye S Ardhi Harist Hirosana Ari Irawan Ari Wicaksono Arif Rahman Saleh Aswin Prasetyo Nugroho Auzan Faizdaffa Hakim Aziz Rahatur Abdusukri Bagus Fatkhurrozi Bagus Yustia Bariq Firmanda Bramantyo Satrio Kinayungan Budi Wicaksono Ilyas Budi Prasetyo Cahyo Pono Sasmito Cahyo Sejati Chovin Prandya Arvinandika Putra Danu Prasetyo Dany Dwi Yulianto David Ari Armansyah Dedek Arya Pangestu Dida Ardito Yudhistira Dwi Istiyarno Dzilan Auliya Sulthon Evan Hardi Nurul Huda Faris Naufal Hanif Farkhan Setyawan Ferdyansah Ananta GALIH PRATAMA Herru Santosa Budiono Husen Khalwani Ibnu Rosyid Ridwana Ibrahim Nawawi Ilyas Azzindani Ilyas Hidayat Isro Nurul Hadi Ivan Hardi Nurul Ikhsan Katon Wisnu Kartiko Kholil Nur Ibrahim Khotibul Umam Lihananda Septianur Falah Lintang Riady Atmaja M. Ida Bagus K.B M.Abiyyu Raafi Marcellinus Tedy Kurniawan Masnurojak Bin Khanif Mochamad Riyanto Yanuar Mohamad Nanda Safitra Muhamad Nur Safi’i Muhamad Shohibun Amin Muhammad Adrian Rizky Muhammad Irdan Adhaqiqi Muhammad Lintang Saputra Muhammad Taufiqurrahman Muhammad Utsman Hanif Romadoni Muhammad Zanu Nur Arsyad Namariq Masna Nani dkk. Mulyaningsih Naufal Dwi Qurniawan Noviana Sari Nur Hayati Nurhadi Nurhadi Nurmala Dyah Fajarningrum Panca Putra Hasugian Pebi Riyanto Pitrah Rapi Ismail R Faiz Listyanda Rachmat Nurcahyo Raka Mahendra Sulistiyo Raka Mahendra Sulistyo Ranny Puspita Dewi Rany Puspita Dewi Reny Susanti Rezananda Rifky Gunawan Rony Irawan Rozan Alifiyan Darmawan Ryo Armando Pratama Saeful Rohim Sigit Iswahyudi Sigit Joko Purnomo Sigit Mujiarto Sri Widodo Swastika Pascal Rafsanjanu Syahrul Pratomo Syarif Hidayat Tegar Indarto Tegar Jati Nugroho Tri Puji Rahayu Vicky Khoirul Arzaq Wandi Arnandi Wegig Pranata Jaya Wibi Adrian Fahrezi Xander Salahudin Yunus Bayu Saputro Yusuf Prasetya Darmawan