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All Journal INOTEKS : Jurnal Inovasi Ilmu Pengetahuan, Teknologi, dan Seni KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan REKAYASA Civil Engineering Journal Mekanika: Majalah Ilmiah Mekanika SMART SPORT SEMAR Jurnal Abdikarya : Jurnal Karya Pengabdian Dosen dan Mahasiswa
Budiana, Eko Prasetya
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Agriculture, Biological Sciences & Forestry Arts Humanities Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Physics Social Sciences Other

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Uji impak mesin heated die screw extruder pada pembriketan limbah pertanian Budiana, Eko Prasetya; Himawanto, Dwi Aries; Prija T., D. Danardono D.; Widodo, Purwadi Joko; Suhardi, Bambang
INOTEKS: Jurnal Inovasi Ilmu Pengetahuan,Teknologi, dan Seni Vol 26, No 2 (2022)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/ino.v22i2.12337

Abstract

Limbah pertanian (sekam padi, jerami padi, tongkol jagung, kulit singkong, rumput, dll) diproduksi dalam jumlah besar di Indonesia. Limbah pertanian dapat diubah menjadi bentuk energi melalui proses konversi termo mekanik. Proses pembuatan briket adalah pengubahan limbah pertanian menjadi briket berbentuk seragam yang mudah digunakan, diangkut, dan disimpan. Tujuan dari penelitian ini adalah untuk menentukan suhu dan kecepatan poros ekstruder ulir die berpemanas untuk pembriketan limbah pertanian. Sampel briket dibriket pada suhu 200, 300, 400o C dan kecepatan poros 30, 50, 100 rpm. Uji impak dilakukan untuk mendapatkan temperatur dan kecepatan poros yang sesuai untuk pembuatan briket limbah pertanian. Uji impak dilakukan dengan menjatuhkan sampel briket dari ketinggian 2 m ke lantai beton. Hasil pengujian menunjukkan bahwa temperatur briket dan kecepatan poros yang baik adalah 300o C dan 50 rpm.The impact test of heated die screw extruder on agricultural waste briquettingAgricultural wastes (rice husk, rice straw, corncob, cassava peel, grass, etc.) are produced in considerable quantities in Indonesia. Agricultural waste can be converted to a form of energy through the thermomechanical conversion process. The briquetting process is converting agricultural waste into uniformly shaped briquettes that are easy to use, transport and store. The present study aims to determine the temperature and the shaft speed of heated die screw extruder for briquetting agricultural wastes. Briquette samples were briquetted at the temperature of 200 o, 300 o, 400o C and shaft speeds of 30, 50, and 100 rpm. An impact test was conducted to obtain the temperature and shaft speed suitable for briquetting of agricultural wastes. The impact test was carried out by dropping a briquette sample from 2 m onto a concrete floor. The test results show an excellent briquetting temperature and shaft speeds are 300o C and 50 rpm.
Glow-Wire Analysis of Polypropylene Blends for Mechanical and Marine Engineering Applications Firdaus, Himma; Supono, Ihsan; Pratama, Anandito Adam; Istanto, Iwan; Prabowo, Aditya Rio; Kusnandar, Nanang; Kasiyanto, Iput; Wijaya, Rahman; Lailiyah, Qudsiyyatul; Budiana, Eko Prasetya; Yaningsih, Indri; Akbar, Hammar Ilham; Imanullah, Fahmi
Civil Engineering Journal Vol. 11 No. 7 (2025): July
Publisher : Salehan Institute of Higher Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28991/CEJ-2025-011-07-018

Abstract

Polymer materials are widely used due to their versatility; however, their vulnerability to fire is a significant concern, especially under electrical influences on engineered mechanical designs and marine structure applications. This study examines the fire resistance of a polypropylene (PP) blend using Glow-Wire Flammability Index (GWFI) and Glow-Wire Ignition Temperature (GWIT) tests. While previous research typically relies on flame-retardants to address flammability, this work proposes using a simple 1:1 weight ratio blend of two distinct PP types. This specific PP blend was selected to provide balanced material properties and improved processing consistency. The results from glow-wire tests were compared with previous findings to evaluate flammability performance. Our findings reveal that although the PP blend offers enhanced fire resistance compared to neat PP, it remains inferior to PP-containing flame-retardant additives. The outcomes suggest that this blended PP may be suitable for applications where mechanical properties, cost-effectiveness, and recyclability precede fire resistance, such as engineered automotive interiors, mechanical design of marine transportation, and low-risk electrical components in engineering infrastructure. This initial research contributes valuable insights into the fire behavior of PP blends. Moreover, it establishes a foundation for future investigations into polymer fire resistance, encouraging additional glow-wire testing on other polymer systems.
Structural design analysis of sandwich panels under axial compression load: Utilization of geometry and material variations Alifianto, Muhammad Daffa; Rohman, Hamdani Maftuh; Pratama, Anandito Adam; Istanto, Iwan; Prabowo, Aditya Rio; Melnyk, Oleksiy; Do, Quang Thang; Muttaqie, Teguh; Budiana, Eko Prasetya; Sohn, Jung Min; Wijaya, Rahman
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 22, No 3 (2025): October
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v22i3.75955

Abstract

This study aims to analyze the performance of sandwich cylindrical shell structures under axial compression load by varying the geometry and types of material. Numerical simulations were conducted using ABAQUS software, employing the finite element method (FEM) to evaluate von Mises stress, displacement, and energy absorption. The materials used include ASTM 1045, ASTM A36, and Mild Steel, with geometry designs varying across five different configurations. The simulation results indicate that the combination of material and geometry has a significant impact on the structural response of the sandwich cylindrical shell. ASTM 1045 exhibited the highest von Mises stress and displacement, indicating both high strength and substantial deformation, while Mild Steel demonstrated better elastic properties. Geometry 4 combined with ASTM 1045 proved to be the strongest configuration, while the combination of Geometry 1 and Mild Steel was the most elastic. This study contributes to the development of more efficient and impact-resistant ship structural designs. 
PENINGKATAN SARANA PENDUKUNG PENGOLAHAN MAKANAN PENDAMPING ASI SEBAGAI UPAYA PREVENTIF PENCEGAHAN STUNTING OLEH KOMINITAS SWEET BABY POKJA 4 TP PKK DESA KECAMATAN WEDI KABUPATEN KLATEN: Improving Supporting Facilities for Processing Complementary Foods for Breast Milk as a Preventive Effort to Prevent Stunting by the Sweet Baby Community, Working Group 4, TP PKK, Wedi District, Klaten Regency Budiana, Eko Prasetya; Hadi, Syamsul; Kristiawan, Budi; Septiyanto, Muhamad Dwi
Jurnal Abdikarya: Jurnal Karya Pengabdian Dosen Dan Mahasiswa Vol. 8 No. 02 (2025): Vol. 08 No. 02 Tahun 2025
Publisher : Lembaga Penelitian Dan Pengabdian Kepada Masyarakat Universitas 17 Agustus 1945 Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30996/.v8i02.11729

Abstract

Stunting merupakan masalah global yang berkembang dan terjadi diberbagai negara belahan dunia. Masalah kesehatan ini merupakan problem fundamental mendasar yang terjadi akibat adanya masalah kekurangan suplai gizi, protein dan lain sebagainya. Masalah tersebut menjadi perhatian khusus bagi Komunitas Sweet Babby Pokja 4 TP PKK Desa Pandes untuk menanggulangi masalah stunting. Kelompok ini memiliki kegiatan yang disebut dengan MP-ASI yaitu kegiatan menyediakan makanan pendukung ASI untuk bayi usia 0-2 tahun di wilayah Desa Pandes Kabupaten Klaten. Selain daripada menanggulangi isu kesehatan stunting komunitas Sweet Baby juga mennghidupkan kehidupan ekonomi dengan mendapatkan keuntungan dari penyediaan MP-ASI dan menerima pesanan makanan konsumsi untuk berbagai acara. Namun kendala yang dihadapi oleh Komunitas adalah penggunaan peralatan yang sederhana rumahan yang sangat terbatas untuk menerima pesanan dalam jumlah yang besar. Oleh sebab itu kegiatan pengabdian yang dilakukan oleh Universitas Sebelas Maret melalui Grub Riset Sustainable Thermofluids melakukan pengabdian ini sebagai bentuk daya dukung terhadap komunitas dan bentuk upaya pelaksanaan kegiatan Tri Dharma Peguruan Tinggi. Kegiatan berjalan dengan baik berupa penyerahan sarana prasarana serta pendampingan tenaga ahli berupa cooking class untuk pelatihan skill dan pengetahuan anggota komunitas tentang olahan makanan bergizi.
Experimental Comparison of Double-Stage Runner Profiles in Gravitational Water Vortex Turbines for Improved Performance Risdiyanto, Gunawan; Septiyanto, Muhamad Dwi; Hadi, Syamsul; Tjahjana, Dominicus Danardono Dwi Prija; Budiana, Eko Prasetya; Andriyanto, Solikin
Rekayasa Vol 18, No 3: Desember, 2025
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v18i3.30683

Abstract

Gravity Water Vortex Turbines (GWVTs) are a new category of turbines used in micro-hydro power plants (MHPs). GWVTs can be used to optimize existing water flow potential, aerate water bodies, and maintain ecosystem integrity. The basic idea for this development stems from previous research showing that GWVTs with conical basins exhibit different flow velocity distributions at different locations. To exploit this potential, experimental analysis was conducted using a two-stage configuration with varying runner profiles and different flow rate conditions. A low-speed water tunnel with a conical basin was used to generate the vortex flow. Furthermore, the performance of the double-stage GWVT was compared with that of a single-runner GWVT in terms of power conversion. The study used several turbine configurations profiles, including Savonius and Flat with Curved. The findings measured torque, mechanical power conversion, and rotational speed. The GWVT performance results were evaluated using comparison-staging and inter-staging methods to determine the best performance of each turbine in generating power. The results showed that the Savonius blade profile on a single-runner GWVT installed in the lower stage position was superior in terms of power conversion. The best power generated is 53.7 Watts, and the efficiency is 52.3% at a flow rate of 9.1 L/s. The installation of two similar runners on a double-stage GWVT yields better power conversion than the installation of two different runners. A flat with Curved runners installed for the lower and upper stages on a double-stage GWVT shows the highest results of 56.7 Watts and 1.2 Watts. So, it can be concluded that the power conversion of a double-stage GWVT is superior to that of a single-runner GWVT.
Adsorption Characteristics of Silica Gel-Water Pairs in Personal Protection Equipment Hanif, Shazia; Adiputra, Suryadijaya; Yaningsih, Indri; Budiana, Eko Prasetya
Mekanika: Majalah Ilmiah Mekanika Vol 22, No 2 (2023): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v22i2.71250

Abstract

This study aims to determine the characteristics of silica gel RD to water vapor in terms of adsorption capacity and rate. A layer modeling approach was employed to simulate the Personal Protective Equipment (PPE), which comprised four distinct layers: the surrounding environment air, the fabric layer, the RD-type silica gel layer, and the air gap separating the silica gel from the skin surface. The simulation encompassed environmental conditions set at 27 ℃, while the human body's temperature was maintained at 35 ℃. This study uses a simulation method using Guggenheim–Anderson de Boer (GAB) modeling calculations to determine isothermal characteristics and Linear Driving Force (LDF) modeling to determine kinetic characteristics with an adsorbent temperature of 26.84 ℃. The simulation results show that the isothermal characteristics of silica gel RD at a relative humidity of 60% or a relative pressure of 0.6 have an absorption capacity of 0.38 kg/kg. Moreover, the kinetic characteristics of silica gel RD have an absorption rate of 0.38 kg/kg of water vapor with a time of 980 s until a significant reduction in the absorption value occurs
CFD Modeling of Narasena Bengawan UV Team Quickster UAV Wings with Addition of Vortex Generator to Aerodynamic Performance Luthfi, Mohammad Fahmi; Danardono, Dominicus; Budiana, Eko Prasetya; Kurniawan, Yudi
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 2 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i2.50736

Abstract

This research is based on obtaining the best possible aerodynamic performance for the Quickster Narasena Bengawan UV Team Unmanned Aerial Vehicle (UAV) aircraft wing design. One factor that significantly affects the flying version of a UAV is the wing. The Quickster Narasena UAV aircraft wing uses an MH33 airfoil because MH33 is specifically for high-speed UAV aircraft. This research will compare the performance of a branch without a vortex generator with addition with a vortex generator. This study will also discuss variations in the positioning of the vortex generator on the wing of the Quickster Narasena UAV. The method used in this research is the Computational Fluid Dynamics (CFD) method. The simulation process will use the ANSYS Fluent 19.0 application with the K-Omega Shear Stress Transform (SST) method with the Reynolds-Averaged-Navier-Stokes (RANS) equation as the basis. This study aims to obtain the results of the coefficient of drag, lift, and the contour of the turbulence that will occur. The simulation results that have been done are the geometry of the wing with the addition of a vortex generator can reduce the drag coefficient and can increase the lift coefficient.
Desain Dan Pembuatan Alat Bantu Catur Elektronik Untuk Tunanetra Kristiawan, Budi; -, Ubaidillah; Doewes, Rumi Iqbal; Wijayanta, Agung Tri; Yaningsih, Indri; Budiana, Eko Prasetya; Himawanto, Dwi Aries; Hadi, Syamsul; Utomo, Dimas Wahyu
Smart Sport Vol 21, No 1 (2022): Jurnal Smart Sport
Publisher : Smart Sport

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/smsp.v21i1.69752

Abstract

Cabang olahraga catur tunanetra adalah salah satu cabang olahraga kebanggaan bangsa Indonesia yang sudah mampu mengharumkan nama besar Indonesia. Pada Asian Paragames 2018, cabang olahraga ini berhasil membawa pulang mendali emas terbanyak jika dibandingkan dengan cabang olah raga lain. Dari 37 mendali emas yang berhasil direbut oleh Indonesia, 11 diantaranya adalah sumbangan dari cabang olahraga catur tunanetra. Prestasi tersebut menjadikan Indonesia menduduki posisi ke-5 berdasarkan perolehan mendali dari 33 negara yang berpartisipasi pada Asian Paragames 2018. Sudah selayaknya prestasi para atlet catur tunanetra ini harus kita pertahankan dan kita tingkatkan. Untuk meningkatkan kwalitas atlet catur tunanetra bangsa Indonesia ini, prasarana yang memadahi saja tidak cukup untuk mengakomodir kebutuhan latihan. Pendampingan atlet saat melakukan latihan juga sangat dibutuhkan untuk meningkatkat kwalitas atlet. Hal tersebut dikarenakan ada beberapa peraturan pertandingan catur yang masih memerlukan bantuan orang yang bias melihat, seperti pengawasan waktu, pemberitahuan sisa waktu untuk melangkah dan sisa waktu pertandingan sampai berakhir. Akantetapi jumlah relawan pendamping yang tidak mencukupi menjadi masalah tersendiri pada kebutuhan latihan atlet catur tunanetra Indonesia. Oleh karena itulah, pada proposal ini, kami mengajukan rancang bangun catur cerdas yang bisa memudahkan dan memberitahukan atlet sisa waktu pertandingan catur sebagai pengganti fungsi relawan pendamping.  Kata Kunci: Catur, Catur tunanetra, Alat Bantu Olahraga Catur
Wahana Ayun Tangan sebagai Sarana Interaksi Anak dengan Dunia Luar di Taman Mekarsari, Boyolali Kristiawan, Budi; Wijayanta, Agung Tri; Hadi, Syamsul; Yaningsih, Indri; Himawanto, Dwi Aries; Budiana, Eko Prasetya; Ubaidillah, Ubaidillah; Arifin, Zainal; Alfaiz, Noval Fattah; Prasetyo, Singgih Dwi
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 13, No 2 (2024): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v13i2.79467

Abstract

Taman bermain adalah suatu lingkungan yang didesain secara khusus untuk memberikan kesempatan kepada anak-anak untuk bermain, belajar, dan berinteraksi. Selain berfungsi sebagai tempat hiburan, taman bermain juga memiliki peran penting sebagai ruang pendidikan yang mendukung perkembangan fisik, kognitif, sosial, dan emosional anak-anak. Pengabdian ini memiliki tujuan untuk merancang desain wahana bermain ayun tangan yang mempertimbangkan faktor keselamatan, kenyamanan, dan pengembangan anak di Taman Mekarsari Desa Kaligentong, Kecamatan Gladagsari, Kabupaten Boyolali. Wahana bermain ayun tangan ini didesain dengan menggunakan material yang aman dan tahan lama, serta menerapkan prinsip-prinsip desain yang memungkinkan anak-anak untuk bergerak, bereksplorasi, dan menggunakan imajinasi mereka dengan bebas. Wahana bermain ayun tangan memiliki peran yang penting dalam meningkatkan kualitas hidup anak-anak dengan memberikan mereka kesempatan untuk bermain, belajar, dan tumbuh secara holistik. Dengan adanya wahana ini, anak-anak dapat mengembangkan keterampilan motorik, kognitif, dan sosial mereka sambil menikmati pengalaman bermain yang menyenangkan. Wahana ini diharapkan dapat menciptakan lingkungan yang merangsang interaksi sosial, memperluas keterampilan anak-anak, dan meningkatkan kualitas hidup mereka melalui kesempatan bermain dan belajar. Kata kunci : pengabdian, taman bermain, ayun tangan, edukasi
Co-Authors Adiputra, Suryadijaya Aditya Rio Prabowo Akbar, Hammar Ilham Alfaiz, Noval Fattah Alifianto, Muhammad Daffa Andriyanto, Solikin Bambang Suhardi Budi Kristiawan, Budi Danardono Dwi Prija Tjahjana, Dominicus Danardono, Dominicus Do, Quang Thang Dwi Aries Himawanto Hanif, Shazia Himma Firdaus Imanullah, Fahmi Indri Yaningsih Iput Kasiyanto Istanto, Iwan Kusnandar, Nanang Luthfi, Mohammad Fahmi Melnyk, Oleksiy Muttaqie, Teguh Pratama, Anandito Adam Prija T., D. Danardono D. purwadi joko widodo Qudsiyyatul Lailiyah Risdiyanto, Gunawan Rohman, Hamdani Maftuh Rumi Iqbal Doewes, Rumi Iqbal Septiyanto, Muhamad Dwi Singgih Dwi Prasetyo Sohn, Jung Min Supono, Ihsan Syamsul Hadi Ubaidillah - Ubaidillah Ubaidillah Utomo, Dimas Wahyu Wijaya, Rahman Wijayanta, Agung Tri Yudi Kurniawan Zainal Arifin