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All Journal Majalah Ilmiah MOMENTUM Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Elemen Majamecha Jurnal Konversi Energi dan Manufaktur Indonesian Journal of Community Empowerment
Budiono, Herru Santosa
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Analisis Variasi Basin Turbin Reaksi Vortex Ultra Low-Head Sudu Aksial Menggunakan Metode CFD Amin, Muhamad Shohibun; Suharno, Kun; Budiono, Herru Santosa; Safi'i, Muhamad
JURNAL ILMIAH MOMENTUM Vol 20, No 2 (2024): Vol 20, No 2
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36499/jim.v20i2.12100

Abstract

Penggunaan energi berlebihan menyebabkan berkurangnya sumber daya energi, memicu pemanasan global, efek rumah kaca dan polusi udara. Penelitian energi ramah lingkungan, termasuk energi air, menjadi penting. Salah satu inovasi adalah turbin reaksi vortex ultra-low head yang cocok untuk sungai dan irigasi dengan arus dan head rendah. Turbin ini memanfaatkan aliran air untuk menghasilkan energi bersih dan menawarkan solusi energi hijau. Penelitian ini fokus pada simulasi CFD (Computational Fluid Dynamics) untuk mengoptimalkan desain basin turbin, dengan memvariasikan bagian inlet dengan ukuran 180 mm, 200 mm dan 220 mm serta memvariasikan bagian outlet dengan ukuran yang digunakan yaitu 120 mm, 130 mm dan 140 mm. Hasil penelitian Geometri turbin reaksi vortex ultra-low head dengan basin 220-120 mm dengan nilai tertinggi pada debit 8,312 L/s, force 74,149 N, turbulensi 6,673 m/s², dan kecepatan aliran 35,100 m/s, Geometri turbin reaksi vortex ultra-low dengan basin 180-140 mm dengan nilai terendah pada debit 5,792 L/s, force 55,411 N, turbulensi 4,987 m/s², dan kecepatan aliran 26,230 m/s. Geometri turbin reaksi vortex ultra-low dengan basin 220-120 mm menjadi desain turbin yang paling ideal dalam penelitian ini, sehingga desain tersebut dapat dijadikan acuan dalam perancangan turbin reaksi vortex ultra-low dan memungkinkan dapat diterapkan secara langsung dilapangan secara praktis.  
PERANCANGAN ALAT PRESS SARI JAMU MENGGUNAKAN SISTEM HYDRAULIC KAPASITAS 2 KG Rahmat, Bagas Subakti; Dewi, Rany Puspita; Budiono, Herru Santosa
ELEMEN : JURNAL TEKNIK MESIN Vol. 12 No. 1 (2025)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v12i1.331

Abstract

The process of making herbal medicine still uses traditional methods for making herbal medicine. One of them is the process of squeezing herbal juice. The semi-automatic herbal juice press tool uses a hydraulic system with AISI 304 material. The results of designing the herbal juice press tool are the design of a press tool with a capacity of 2 kg and has dimensions of length 250 mm, width 250 mm, and height 250 mm. The load on static testing is 100 kg. The von Mises stress value in the frame is 38.23 MPa. The deformation value of the jamu juice press frame is 0.065. The smallest safety factor value for the jamu juice press frame is 5. The von Mises stress value for the jamu juice press tube is 21.057 MPa. The maximum deformation value of the jamu juice press tube is 0.017 mm. The smallest safety factor value for the herbal juice press tube is 9.735.
Studi Eksperimental Uji Kekerasan Pada Sekrup Group Head Mesin Espresso Menggunakan Bio Inhibitor Ekstrak Beans Coffee Arabica Yanuar, Mochamad Riyanto; Mulyaningsih, Nani; Budiono, Herru Santosa
Majamecha Vol. 7 No. 1 (2025): Majamecha
Publisher : Program Studi Teknik Mesin, Fakultas Teknik, Universitas Islam Majapahit, Mojokerto, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36815/majamecha.v7i1.3650

Abstract

Penelitian ini bertujuan untuk mengevaluasi kekerasan sekrup group head mesin espresso yang mengalami korosi setelah direndam dalam larutan bio inhibitor berbahan dasar ekstrak kopi Arabika Temanggung fullwash. Pengujian kekerasan dilakukan sebelum dan sesudah perendaman dengan menggunakan metode uji kekerasan Vickers. Penelitian ini menggunakan metode eksperimen yang memiliki tujuan membuat ekstrak beans coffee Arabica Temanggung Fullwash sebagai inhibitor pada sekrup, juga untuk mengetahui tingkat laju korosi dan kekerasan pada sekrup. Spesimen yang digunakan adalah sekrup berbahan baja paduan yang dimana perendaman inhibitor dilakukan selama 2 hari dan memiliki 4 macam konsentrasi yaitu 0%, 15%, 20% dan 25%. Pada hasil pengujian kekerasan terbesar terjadi pada konsentrasi 20% sebesar 518,2 HVN dan uji kekerasan terkecil pada konsentrasi 15% sebesar 490,33 HVN.
Peningkatan Sifat Mekanik Komposit Serat Alam Limbah Sabut Kelapa (Cocofiber) yang Biodegradable Hastuti, Sri; Budiono, Herru Santosa; Ivadiyanto, Diki Ilham; Nahar, Muhammad Nurdin
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 6, No 1 (2021): EDISI MARET 2021
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v6i1.2257

Abstract

Inovasi baru serat dari sabut kelapa dimanfaatkan untuk meningkatkan nilai ekonomis dari serat sabut kelapa, oleh karena itu dirancanglah pendayagunaan serat dari sabut kelapa untuk penguat komposit dengan material serat alam yang biodegradable. Hal ini untuk mendukung penggunaan komposit yang ramah terhadap lingkungan dan mengurangi penggunaan material komposit serat sintetis yang polutan. Tujuan penelitian adalah menganalisis sifat mekanik pada komposit serat alam bermaterial serat dari sabut kelapa yang ramah lingkungan. Metode penelitian pembuatan komposit berpenguat serat dari sabut kelapa dilakukan treatment NaOH 15% selama 5 jam dan fraksi volume serat 10 %, 15 %, dan 20 %. Komposit  serat dari sabut kelapa dengan matriks UPRs 157 BQTN dengan hardener MEXPO. Pengujian mekanik dilakukan uji bending menggunakan standar ASTM D790 dan uji impak  menggunakan standar ASTM D5941.  Pengujian impak komposit serat alam menunjukkan ketangguhan impak komposit pada fraksi volume serat 20% dengan nilai 0.017588J/mm2. Hasil pengujian menunjukkan peningkatan fraksi volume serta berpengaruh terhadap peningkatan kekuatan bending komposit serat dari sabut kelapa  dengan kekuatan optimum bending pada fraksi volume serat 10% dengan nilai 44,33N/mm2. Hal ini menunjukkan peningkatan fraksi volume serat dengan perendaman NaOH 15% akan meningkatkan sifat mekanik bending dan impak komposit. Perendaman NaOH memberikan pengaruh daya serap sabut kelapa terhadap matrik Unsaturated Polyester yang dapat meningkatkan daya rekat antara penguat serat dengan matrik sehingga meningkatkan sifat mekanik bending dan impak komposit. ABSTRACT The innovation of coco fiber is used to increase the economic value of coconut coir, therefore the utilization of coconut fiber for reinforcing composites with biodegradable natural fiber material is designed. This is to support the use of composites that are friendly to the environment and reduce the use of pollutant synthetic fiber composite materials. The research objective was to analyze the mechanical properties of natural fiber composites with environmentally friendly coconut fiber as material. The research method of making fiber-reinforced composites from coconut coir was carried out by 15% NaOH treatment for 5 hours and a fiber volume fraction of 10%, 15%, and 20%. Composite fiber from coconut coir with UPRs 157 BQTN matrix with MEXPO hardener. Mechanical testing is carried out using the ASTM D790 standard and the impact test using the ASTM D5941 standard. The impact test of natural fiber composites showed the impact toughness of the composite at a fiber volume fraction of 20% with a value of 0.017588 J/ mm2. The test results showed an increase in volume fraction and an effect on the increase in the bending strength of coconut fiber composites with the optimum bending strength at a fiber volume fraction of 10% with a value of 44.33N /mm2. This shows that the increase in fiber volume fraction by immersion in 15% NaOH will increase the bending mechanical properties and the impact of the composite. Soaking NaOH has an effect on the absorption power of coconut coir on the Unsaturated Polyester matrix which can increase the adhesion between the fiber reinforcement and the matrix thereby increasing the bending mechanical properties and impact of the composite.
PENERAPAN STANDAR KESELAMATAN DAN KESEHATAN KERJA PADA INDUSTRI PANDE BESI (BLACKSMITH) DI DESA REJOSARI, PAKIS, MAGELANG Purnomo, Sigit Joko; Budiono, Herru Santosa; Riyanto, Pratama; Dwi, Sukmawang
MAJU : Indonesian Journal of Community Empowerment Vol. 3 No. 1 (2026): MAJU : Indonesian Journal of Community Empowerment, January 2026
Publisher : Lembaga Pendidikan dan Penelitian Manggala Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62335/maju.v3i1.2187

Abstract

Rejosari Village, Pakis, Magelang is a center for blacksmithing enterprises, where the majority of residents earn their livelihoods in the blacksmith industry, both as employers and workers. The products produced in the blacksmithing process include hoes, sickles, grass sickles, machetes, knives, spoons, forks, plates. The production process is still carried out manually using simple equipment and has not yet implemented good manufacturing practices. There are still potential workplace hazards, and the understanding and application of OSH aspects remain far from disciplined. The potential hazards found as high heat, respiratory problems. These hazards are exacerbated by work behaviors that have not properly applied OSH standards. Through the implementation of community service activities on management and application, an improvement in understanding of OSH standards has been achieved among both employers and workers. Consequently, work quality and productivity will automatically increase in line with compliance with work behavior based on OSH standards.
Development of a Portable Laser Engraving System for Small-Scale Manufacturing Applications Budiono, Herru Santosa; Purnomo, Sigit Joko; Gastiadirrijal, Muhammad Naufal; Setio, Wawan
Jurnal Konversi Energi dan Manufaktur Vol. 11 No. 1 (2026)
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/JKEM.11.1.3

Abstract

The portable laser engraving system developed in this study integrates an APM32F103 microcontroller, external flash memory (25Q128JV), and an FSC-BT986 Bluetooth module with an Android-based engraver application. The system is designed to address limitations of bulky and costly commercial engravers by offering a compact, low-cost, and wireless alternative for educational laboratories and small-scale manufacturing. Mechanical and electronic subsystems were designed and fabricated using a knockdown frame structure and 3D-printed components. Performance evaluation included functionality testing, wireless communication stability, motion accuracy, and engraving capability on wood, MDF, acrylic, and synthetic leather. The results show stable Bluetooth communication within an effective range of 8 m, an average motion accuracy error of 0.82%, and engraving depths ranging from 0.28–0.45 mm depending on material and laser parameters. The proposed configuration demonstrates technical advantages in wireless stability, portability, and ease of use compared to conventional wired microcontroller-based laser engravers.
Co-Authors Amin, Muhamad Shohibun Dewi, Rany Puspita Dwi, Sukmawang Gastiadirrijal, Muhammad Naufal Ivadiyanto, Diki Ilham Kun Suharno M. Yogi Riyantama Isjoni Nahar, Muhammad Nurdin Nani dkk. Mulyaningsih Rahmat, Bagas Subakti Riyanto, Pratama Safi'i, Muhamad Setio, Wawan Sigit Joko Purnomo Yanuar, Mochamad Riyanto