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All Journal Conference on Innovation and Application of Science and Technology (CIASTECH) JOURNAL OF SCIENCE AND APPLIED ENGINEERING Logic : Jurnal Rancang Bangun dan Teknologi Mekanika: Majalah Ilmiah Mekanika Jurnal Energi dan Teknologi Manufaktur Otopro G-Tech : Jurnal Teknologi Terapan Jurnal Pengabdian Polinema Kepada Masyarakat Logic : Jurnal Rancang Bangun Dan Teknologi JURNAL LINTAS KARSA Teknik: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Hangga Wicaksono
Jurusan Teknik Mesin, Politeknik Negeri Malang, Kota Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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ANALISIS SUDUT SERANG TERHADAP KARAKTERISTIK AERODINAMIKA PADA BILAH 4412 RPM RENDAH DENGAN METODE CFD 6DOF Danang Febriyanto; Hangga Wicaksono; Bayu Pranoto; Mochamad Muzaki
Otopro Vol 19 No 1 Nov 2023
Publisher : Jurusan Teknik Mesin Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/otopro.v19n1.p24-33

Abstract

At this time the power plant still uses a lot of coal fuel, so it is necessary to look for alternative energy, one of which is wind energy. Wind turbines are devices that can convert kinetic energy in the wind into mechanical energy which is then converted into electrical energy through a generator. The analysis method in this research uses Computational Fluid Dynamics (CFD), Qblade, and experimental validation testing using a wind tunnel. The simulated airfoil types consist of 3 types, namely, NACA 4412, NACA 4415, and FX-60 100 (126). The simulation results show that, the most optimal airfoil is NACA 4412 with an angle of attack of 25° and a wind speed of 8 m/s can produce a torque of 3.55503 Nm, a pressure of 45 Pa, a tangential velocity of 55.495 m/s, and a rotational speed of 529. 94 rpm, while the smallest simulation results are on the FX-60 100 (126) airfoil with an angle of attack of 15° and the same wind speed of 8m/s can produce a torque of 1.60390 Nm, a pressure of 40 Pa, a tangential velocity of 9.06592 m/s, and a rotational speed of 108.2164 rpm. The results of experimental testing of wind turbines where the wind turbine used uses the geometry of NACA 4412 show that an angle of attack of 25 ° and a wind speed of 8m / s produces a large electrical power and rpm with a value of 7.98 Watt and 482.2 rpm respectively
Numerical Study of Chord Length and Twist angle Effect towards NACA 4415-FX60 Airfoil Combination in Horizontal Wind Turbines Application Hangga Wicaksono; Kris Witono; Akhmad Faizin; Budi Eko Prasetyo
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 7, No 1 (2024): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v7i1.5868

Abstract

The selection of the appropriate blade shape requires optimization in order to be applied to the relatively low wind conditions in Indonesia. This study proposed a new approach of wind turbine blades design by utilizing the combination of NACA 4415 and FX 60. The effect of twist angle and the chord length carried out in this study to better understanding the blades characteristics. The 6 DoF analysis can be used to determines the theoretical mechanical power of the wind turbine blades. The blade twist geometry analyzed in this study is 15, 20, and 25 degree. From the simulation results, the highest mechanical power was obtained on blades with a twist angle of 5 degrees and a chord length of 0.15m with an average value of 39.95 W. The simulation results show that, at a speed of 8 m/s the blade with a chord length of 0.2 m and a twist angle of 5o has the greatest torque of 5.16579 Nm, with a rotational speed of 76.0668 rpm per minute, this combination can be applied to a low rpm generator A twist angle can improve torque distribution along the blade, but a twist angle that is too sharp can reduce lift and increase drag. It was found that a wider chord length tends to produce lower rotation in the wind turbine. This is caused by the increased surface area on the turbine blade with a longer chord length, which results in an increase in the torque required to rotate the blade at a given speed.
Strength Analysis on Horizontal Axis Wind Turbine Propeller Blade PVC Pipe with Angled Ends Aji Tisa; Hangga Wicaksono; Bagus Wahyudi
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 23 No. 1 (2023): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v23i1.23-31

Abstract

The basic problem of appropriate wind energy technology is how to design wind turbines from materials that are easily available on the market, one solution is PVC pipe as the blade material. For this reason, it is necessary to analyze the working stress that occurs in the blade construction, so that the PVC pipe propeller wind turbine is safe when applied in society. The purpose of this study was to determine the effect of wind speed and tip elbow width on working stress. The simulation test method uses SolidWorks Flow Simulation Software and then the results are exported to Static Simulation to determine the strength of the material. Simulation tests were carried out with wind loads on PVC pipe propellers with wind speeds of 5 m/s, 6 m/s, and 7 m/s and elbow tip widths of 100 mm, 110 mm, and 130 mm. The results of the maximum stress value in the wind turbine simulation test with the addition of an elbow tip were obtained at a wind speed of 7 m/s and an elbow tip width of 130 mm
THE EFFECT OF THE ANGLE AND DIMENSIONS OF A CROSS-SECTION SPECIMEN ON THE TORSIONAL STRENGTH OF AISI 1020 SQUARE STEEL SHAFT Bima Cahya Maula Dana; Syamsul; Hangga Wicaksono; Kris Witono
Logic : Jurnal Rancang Bangun dan Teknologi Vol. 24 No. 1 (2024): March
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/logic.v24i1.9-16

Abstract

The unknown torsional strength due to the inconsistency of the angles and dimensions of the square cross-section of AISI 1020 steel specimens in the torsion test is the problem encountered. The research method included: preparation of square AISI 1020 steel specimens measuring 6 mm x 6 mm x 160 mm, measurement of 2 diagonal angles of the cross section of the specimen and dimensions of the cross section at 5 observation points along the specimen receiving torsion loads, torsion testing of specimens, analysis of torsion test results data, and drawing conclusions. The results of the study affect the angle and dimensions of the specimen cross-section on the torsional strength of the AISI 1020 steel square shaft which has a greater value at the angles of 89o and 91o than 90o which with an angle of 89o at dimensions of 5.96 mm x 5.96 mm has a torsional strength of 412 MPa, while at an angle of 90o with dimensions of 5.96 mm x 5.96 mm it has a torsional strength of 359 MPa, and for an angle of 91o in dimensions of 5.95 mm x 5.95 mm has a torsional strength of 402 MPa. The average torsional strength is achieved in the range of 351 to 397 MPa, at an angle of 89o the torsional strength increases by 46 MPa or around 13.1 %, and at an angle of 91o the torsional strength increases by 43 MPa or around 12.3%.
PEMANFAATAN SOLAR CELL UNTUK PENGOPERASIAN POMPA AIR FASILITAS UMUM DI RW 04, KELURAHAN KARANGBESUKI, KOTA MALANG Muhammad Fakhruddin; Imam Mashudi; Wirawan Wirawan; Hangga Wicaksono; Fauzan Baananto; Nurlia Pramita Sari; Bayu Pranoto
Jurnal Lintas Karsa Vol. 1 No. 2 (2025): Vol 1 No 2 (2025): Jurnal Lintas Karsa (Mei 2025)
Publisher : S1 Teknik Mesin Fakultas Teknik. Universitas Negeri Surabaya Gedung A6 Kampus UNESA Ketintang Surabaya 60231

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pengabdian masyarakat di RW 04, Kelurahan Karangbesuki, Kota Malang, bertujuan meningkatkan akses air bersih dengan pemasangan panel surya untuk mengoperasikan pompa air fasilitas umum. Pelatihan melibatkan warga dalam pemahaman panel surya, instalasi, dan pemeliharaan pompa air. Penelitian lokasi mempertimbangkan aspek teknis dan lingkungan. Selama pelatihan, disampaikan informasi tentang keuntungan energi surya, pemeliharaan peralatan, dan manajemen sumber daya air. Pemasangan panel surya berhasil meningkatkan ketersediaan air bersih, mengurangi ketergantungan pada sumber energi konvensional, dan memberdayakan masyarakat. Proyek ini tidak hanya berkontribusi pada aspek teknis, tetapi juga pada aspek sosial dan ekonomi di tingkat komunitas. Evaluasi menunjukkan dampak positif yang signifikan, membangkitkan kesadaran masyarakat terhadap energi terbarukan. Proyek ini dapat menjadi model inspiratif untuk proyek serupa di lokasi lain, mendorong keberlanjutan dan peningkatan akses air bersih melalui teknologi ramah lingkungan.
Surface Roughness and Fiber Angular Orientation Analysis Toward Laminated Composite Crack Propagation Hilmi Iman Firmansyah; Bayu Pranoto; Chandra Gunawan; Hangga Wicaksono; Muhammad Fakhruddin
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 1 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i1.48188

Abstract

In this study, fatigue testing of fiber metal composites was carried out to determine the rate of crack propagation so that the age of the fiber metal composite specimen was known. The independent variable in this research is the angular orientation of the carbon fiber and the surface roughness of the aluminium with the dependent variable response is the bridge crack rate. The manufacture of fiber metal laminates specimens uses the Vacuum Assist Resin Infusion (VARI) method, which uses a vacuum pump as a means to flow the resin from the reservoir to the mold. Fatigue testing is performed using the stress amplitude method. That is, the value of the load when the tensile test is one third of the tensile strength. After the fatigue test was carried out, the results were obtained on specimens with an angular orientation of 0/90° fibers, the crack propagation rate slowed down with a cycle value of 90,000 in specimens with a surface roughness value of 2.128 µm then decreased cycles on specimens with a value of 2.887 µm, namely 11,000 cycles.
Initial Rotation Characteristic Investigation of a Hybrid Savonius - Darrieus Wind Turbine using 6 DOF Computational Fluid Dynamics Hangga Wicaksono; Sugeng Hadi Susilo; Bayu Pranoto; Muhammad Fakhruddin
Mekanika: Majalah Ilmiah Mekanika Vol 20, No 1 (2021): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v20i1.47577

Abstract

The inconsistency of the wind flow considered as one of the factors which tend to decrease the performance of the wind turbine. This paper proposes a further analysis of the initial rotation characteristic of a hybrid Savonius-Darrieus wind turbine. The addition of the Darrieus blade intends to increase the aerodynamic stability of the overlapping Savonius turbine. This study implements 2D Computational Fluid Dynamics (CFD) transient analysis using the six Degrees of Freedom (DOF) methods in 0°, 30°, 60°, and 90° Darrieus blade position along with 2, 4, and 6 m/s wind speed variations. The results of the aerodynamic analysis show that the location of the Darrieus 30° turbine provides the greatest initial repulsion, especially when the turbine rotation is above 90°, the position of the Darrieus blade can provide additional impulse force when the Savonius turbine tends to be passive. This effect occurs more significant at higher wind speeds. Savonius with 3-blade modification has a more stable level of force distribution than the 2-blade modification, although the value is smaller. This shows that the 3-blade Savonius provide a higher stability of angular velocity development.
Rancang Bangun Dan Analisis Mesin Pencacah Rumput Tenaga Surya Untuk Pakan Ternak Marshel Oscar Himawan; Hangga Wicaksono; Ratna Monasari; Nike Nur Farida
Jurnal Teknik Mesin, Elektro dan Ilmu Komputer Vol. 6 No. 2 (2026): Juli : Jurnal Teknik Mesin, Elektro dan Ilmu Komputer
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/teknik.v6i2.12276

Abstract

The high demand for animal feed drives farmers to seek more efficient grass chopping solutions, particularly in areas with limited access to electricity. This study aims to produce a design of a solar-powered grass chopper machine, analyze the effect of cutter rotational speed on machine efficiency, analyze the effect of chopped material mass on machine efficiency, and analyze the interaction between rotational speed and material mass on machine efficiency. A quantitative experimental method was employed, with independent variables consisting of shaft pulley diameter variations of 3, 4, and 5 inches producing rotational speeds of 2250, 1689, and 1384 RPM, and material mass variations of 2, 4, and 6 kg of elephant grass (Pennisetum purpureum). The drive motor used was a 24-volt 500-watt BLDC motor powered by four 100 WP monocrystalline solar panels through a solar charge controller and a 24-volt 45 Ah battery. The chopper shaft used three sets of starblade-model chopper knives with 4 blades each. Results indicate that the highest rotational speed of 2250 RPM produced the shortest chopping time and the highest efficiency. The highest efficiency of 80.90% was achieved at a material mass of 2 kg with a rotational speed of 2250 RPM, while the lowest was 55.56% at 6 kg with 1384 RPM. Two-Way ANOVA results showed that material mass (F = 762.419; p = 0.000), rotational speed (F = 32.728; p = 0.000), and their interaction (F = 3.014; p = 0.046) significantly affected machine efficiency. The greater the material mass and the lower the rotational speed, the lower the machine efficiency.
Co-Authors Agus Setiawan Ahmad Hailala Nur Aziz Aji Tisa Akhlis Rizza, Muhammad Akhmad Faizin Andhika Erlangga Setiawan Putra Andita N.F. Ganda Anggit Murdani Bagus Wahyudi Bambang Irawan BAYU PRANOTO Bayu Pranoto Bima Cahya Maula Dana Budi Eko Prasetyo Chandra Gunawan Danang Febriyanto Elka Faizal Fauzan Baananto Gumono Hilmi Iman Firmansyah Imam Mashudi Kris Witono Marshel Oscar Himawan Maskuri Maskuri Mochamad Muzaki Muhammad Fakhruddin Mukhammad Fakhruddin Nike Nur Farida Nila Alia Nurlia Pramita Sari Pipit Wahyu Nugroho Pradana, Yanuar Rohmat Aji Ratna Monasari Sabina Aisyah Susanto Sudarmadji Sugeng Hadi Susilo Sulistyono Sulistyono Syamsul Syamsul Hadi Syamsul Hadi Sza Sya Monica Valeria Wirawan Zahratul Jannah