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All Journal Jurnal Teknologi SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Rekayasa Mesin Sinergi Jurnal Teknik Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal Jurnal Rekayasa Mesin Journal of Mechanical Engineering Science and Technology INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Turbo : Jurnal Program Studi Teknik Mesin JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Jurnal Mekanova : Mekanikal, Inovasi dan Teknologi Jurnal Abdi Insani Indonesian Journal of Applied Research (IJAR) Jurnal Difusi Jurnal Polimesin Jurnal Hasil Pengabdian Kepada Masyarakat Universitas Jember
Intan Hardiatama
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Analisis optimasi topologi desain support bracket pada steering main shaft mobil TITEN EV-2 Dinasti Achmad Tristanto; Santoso Mulyadi; Muh. Nurkoyim Kustanto; Agus Triono; Intan Hardiatama
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2388

Abstract

The KMHE competition which focuses on optimizing energy in developing cars is held as a form of contribution to overcoming the problem of dwindling energy sources. To get a cell phone with low energy consumption, one alternative is to design a cell phone as often as possible. This research examines the effectiveness of topology optimization methods in making lightweight component designs while maintaining the ability to accept loads when applied. The components that are being optimized are the support brackets on the main shaft steering of Car TITEN EV-2 which are produced using additive manufacturing with PLA+ materials. The load borne by the design is the load when the car is braking and turning. Two Topology Optimization experimental methods were carried out based on the loading arrangement. The first method is carried out by combining two topological optimization results based on loading to produce the final design. The second method is carried out by applying the two loadings simultaneously to the TO process. As a result, the second TO method showed very good results compared to the first method and was redesigned to produce a new design that was ready for use. The results of the new design have a mass of 34.25% lower than the original design. The FEA simulation results also show the results of increasing design strength after topology optimization. The maximum von-mises voltage drop of the new design in the case of braking, turning and combined loading (braking and turning) respectively is 12.56 MPa, 11.64 MPa and 17.99 MPa compared to the original design which is 30.16 MPa, 26.19 MPa and 51.9 MPa.
PENGARUH VARIASI DIAMETER TERHADAP DISTRIBUSI TEMPERATUR PADA MESO COMBUSTOR DENGAN SUDDEN EXPANSION Prabowo Restu Eranio; Rosyadi Adib Ahmad; Syuhri Ahmad; Intan Hardiatama; Andi Sanata; Skriptyan Noor HS; M Edoward Ramadhan
STATOR: Jurnal Ilmiah Teknik Mesin Vol 6 No 1 (2023): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Meningkatkan distribusi temperatur pada meso combustor merupakan cara yang efektif dalam meningkatkan efisiensi sistem pembangkit daya micro TPV (thermophotovoltaic). Diameter combustor sangat mempengaruhi distribusi temperatur pada combustor. Tujuan dari penelitian dalam karya tulis ilmiah ini adalah untuk mengamati pengaruh variasi diameter combustor terhadap temperatur dengan mengukur temperatur dinding (Tw) dan ruang bakar (Ti) pada tiga variasi diameter outlet (Do) combustor berukuran 5 mm, 5,5 mm dan 6 mm dengan diameter inlet (Di) yang konstan sebesar 4,5 mm. Hasil penelitian menunjukan bahwa diameter meso combustor sangat mempengaruhi suhu pada dinding dan ruang bakar. Suhu pada dinding combustor (Tw) dipengaruhi oleh besaran surface to volume ratio karena variasi diameter pada combustor, dimana semakin besar nilai rasio (Do combustor kecil) akan menghasilkan suhu dinding yang lebih tinggi, namun dengan heat losses yang besar. Sedangkan suhu pada ruang bakar combustor (Ti) dipengaruhi oleh besarnya vortex yang terbentuk di area sudden expansion. Sudden expansion berukuran besar (Do combustor besar) akan membentuk vortex yang besar sehingga meningkatkan suhu ruang bakar, namun membuat nyala api semakin tidak stabil karena massa berlebih yang dibawa oleh vortex ke dalam zona reaksi.
PENGARUH BENTUK TURBULATORS TERHADAP EFISIENSI SOLAR AIR HEATER DENGAN PENAMBAHAN SENSIBLE HEAT STORAGE MATERIALS Faradin Adyatama; Intan Hardiatama; Mahros Darsin
Jurnal Teknologi Vol 15, No 1 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.1.175-188

Abstract

Indonesia is an equatorial country. This makes Indonesia has a very abundant source of solar energy in Indonesia. One of the tools that can be developed using solar energy is solar air heaters. In its application, solar air heaters have weaknesses, one of which is the low heat transfer coefficient. In this study a reasonable amount of turbulator and heat storage material is used to increase the proportion of heat research. The purpose of this research is to study the variation of turbulator variations and the distance of each turbulator that is 2.5 cm and 3.5 cm to the efficiency of solar air heaters. Tests carried out using three halogen lamps as solar radiation. The radiation beam is controlled with a dimmer and monitored via a digital multimeter. The value of the intensity of radiation used is 577 W/m2; 675.6 W/m2; 730.2 W/m2; and 881.2 W/m2. Blowers are used as forced convection with mass flow rates of 0.0083 kg/s. The results show that the shape of the crimp turbulator can increase efficiency twice as much as the staggered turbulator, which is 25% and 50%, respectively for each crimp turbulator and staggered turbulator. The addition of the turbulator distance in the crimp turbulator can increase efficiency by 5%. However, the magnitude of the turbulator in the staggered turbulator decreases efficiency by 5%. This proves the importance of spacing so that it can achieve optimal results.
Ethanol Blend Effects on The Spray Properties of a Biodiesel Fuel by Ambient Pressure Variation Nasrul Ilminnafik; Intan Hardiatama; Ahmad Adib Rosadi; Andi Sanata; Faiz Firdausi
Indonesian Journal of Applied Research (IJAR) Vol. 4 No. 2 (2023): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v4i2.287

Abstract

Diesel engine spray nozzles are crucial to pollutant generation and engine efficiency. Nozzle performance can be enhanced by adjusting the nozzle's internals. A successful demonstration of the nozzle would be one in which the spray's outcome was uniformly dispersed throughout a wide area, with the grains scattered similarly. The purpose of this research was to examine how a diesel-ethanol characteristic under normal atmospheric pressure (spray tip penetration, the velocity of spray, and spray angle) and, in general, to assess the performance of biodiesel fuel on diesel engines, a substantial amount of biodiesel and operational expenses for the engine are necessary. It was an experimental approach to the study. The research involved recording spray fuel at the nozzle. Using a 480 fps high-speed camera, we tested BD20, BD20E5, and BD20E10 fuel at three different ambient pressures (1 bar, 2 bar, and 3 bar). The injection pressure was 15 MPa, and the fuel temperature was 28.2 degrees Celsius. Spray tip penetration and spray velocity decreased and spray angle increased after ethanol was added to the mixture, consistent with the studies' findings. Lowered spray tip penetration, slower spray speeds, and a complete spray angle result from the increased ambient pressure.
PEMANFAATAN LIMBAH PRODUKSI ARANG KAYU MENJADI BRIKET ARANG SEBAGAI UPAYA PENINGKATAN KEBERDAYAAN EKONOMI PEDESAAN Digdo Listyadi Setyawan; Nasrul Ilminnafik; Hary Sutjahjono; Intan Hardiatama; Misto Misto
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 7, No 3 (2023): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v7i3.16607

Abstract

ABSTRAKDi Dusun Gunung Giri, yang  terletak di Desa Wonosari, Kecamatan Grujugan, Kabupaten Bondowoso,  terdapat sejumlah UMKM pembuat arang kayu. Arang kayu  biasanya digolongkan menjadi tiga A, B dan C.  Harga arang kayu untuk golongan A  adalah Rp. 2.700 per kg, golongan B adalah Rp. 500 per kg , sedangkan untuk golongan C biasanya dibuang.  Sebetulnya produk arang golongan B dan C dapat diolah lebih lanjut menjadi bentuk briket sehingga  memiliki nilai ekonomis yang lebih tinggi. Program Pengabdian kepada Masyarakat (PKM) dilaksanakan dengan menggunkan metode penyuluhan dan  pelatihan kepada mitra yang berjmlah sekitar 15 orang pengrajin arang yang pada akhir program dilakukan evaluasi berupa kuisioner dan berkonsultasi berkelanjutan untuk pengambangan produk arang kayu yaitu menjadikan arang golongan B dan C menjadi briket arang. Hasil kegiatan pengabdian masyarakat menunjukkan bahwa telah terjadi peningkatan softskill SDM  pengrajin  sebesar lebih dari 80 % dan peningkatan nilai ekonomis dari pembuatan beriket arang sebesar 200 %. Kata kunci: briket; arang kayu; pelatihan; penyuluhan. ABSTRACTIn Gunung Giri Hamlet, which is located in Wonosari Village, Grujugan District, Bondowoso Regency, there are a number of SMEs producing wood charcoal. Wood charcoal is usually classified into three A, B and C. The price of wood charcoal for class A is Rp. 2,700 per kg, group B is Rp. 500 per kg, while for group C it is usually discarded. Actually, the products of group B and C charcoal can be further processed into briquettes so that they have a higher economic value. The Community Service Program (PKM) was carried out using counseling and training methods for approximately 15 partners who were charcoal craftsmen who at the end of the program were evaluated in the form of questionnaires and ongoing consultations for the development of wood charcoal products, namely turning class B and C charcoal into charcoal briquettes. The results of the community service activities show that there has been an increase in the soft skills of craftsmen's human resources by more than 80% and an increase in the economic value of making charcoal beriket by 200%. Keywords: briquettes; wood charcoal; training; counseling.
Mechanical properties of FDM 3D printed component using self-made PLA-titanium filament: hardness perspective Mahros Darsin; Faris Ahmad Junaedi; Agus Triono; Yuni Hermawan; Intan Hardiatama; R. Koekoeh Koenjtoro Wibowo; Hari Arbiantara Basuki
Jurnal Polimesin Vol 22, No 2 (2024): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i2.4118

Abstract

3D printing, also known as additive layer manufacturing, is a technique that creates three-dimensional objects or any shape from a digital model. It works by building objects layer-by-layer, similar to how a laser printer operates. Fused Deposition Modeling (FDM) is a widely used technique in 3D printing because it is easy to use, cost-effective in production, and environmentally friendly. This study focuses on a self-made filament made of a PLA-titanium mixture. PLA is a biodegradable thermoplastic polymer sourced from plants, whereas titanium is a strong, lightweight, and corrosion-resistant metal. To measure the hardness of different materials, there are several methods available. In this study, the Shore D hardness test, specifically designed for polymer materials, was used. Data were collected using the Taguchi method, specifically L4 (23), and the data were analysedusingAnalysis of Variance (ANOVA). The variations in print parameters examined in this study include nozzle temperature (230°C and 240°C), layer height (0.2 mm and 0.3 mm), and print speed (30 mm/s and 40 mm/s). The aim of this study was to determine whether there were any changes in the hardness of the specimens. The ANOVA results revealed that the most influential parameter was print speed, with a contribution value of 56.01%. The results demonstrated that the printing parameters affected the hardness of the printed specimens. The highest hardness level of 56.3 Shore D was obtained with a nozzle temperature of 240°C, a layer height of 0.3 mm, and a print speed of 30 mm/s. The application of this study was demonstrated through the creation of dentures made from PLA-titanium.
STUDI NUMERIK KARAKTERISTIK PENGABUTAN BAHAN BAKAR DIESEL, BIODIESEL DAN CAMPURANNYA Hardiatama, Intan; Aziz, Muhammad Lutfi; Ilminafik, Nasrul; Sanata, Andi; Rosyadi, Ahmad Adib
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.907

Abstract

Biodiesel predicted to replace diesel fuel in the future that comes from the transesterification process of plant oils, animal fats, or used oils. One of the potential raw materials is nyamplung seeds because they are scattered in Indonesia, easy to cultivate, and bear fruit throughout the year [1]. The purpose of this study was to determine the effect of mixing pure diesel fuel and nyamplung biodiesel with the fuel composition B0, B20, B30, and B100 on the spray tip characteristics penetration, spray angle, and sauter mean diameter.This study focussed on simulation. The simulation method is carried out to predict the distribution and mean diameter of droplet using commercial fluent software. Fuel spray is carried out in free air with an injection pressure of 15 MPa, fuel temperature 28.2 ℃ and free air temperature 30.1 ℃. The spray process was taken at 6.25 ms and then the fuel spray characteristics were measured using the ImageJ application.The results of testing the fuel spray characteristics indicate that the amount of biodiesel content in the fuel is 20-100%. It can increase the length of spray tip penetration about 0.7-4.9%, a decrease in spray angle of 9.2-32.1% and the sauter mean diameter value increased by 20.1-84.6%. It caused by increasing the amount of biodiesel content in the fuel which results in an increase in the value of density, viscosity and surface tension of the fuel.
Power Enhancement of Monocrystalline Solar Panel with Passive Cooling Trifiananto, Muhammad; Hardiatama, Intan; Zainul Muttaqin, Aris; Edoward Ramadhan, Mochamad; Jatisukamto, Gaguk; Dimyati Nashrullah, Muhammad; Al Wafi, Adib
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 9 No 1 (2024): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v9i1.1688

Abstract

The need for energy every year both in the domestic and global increases. Indonesia's energy needs are predicted to increase by 5% each year. Indonesia has renewable energy potential from solar, hydropower, wind, and geothermal sources. The potential of new renewable energy amounted to 442 GW. Of the 442 GW, the greatest potential is owned by 207 GW of solar energy. The high potential of solar energy in Indonesia is because Indonesia is located in the tropics which experiences sunshine time of approximately 6-8 hours per day and the sun continues to shine throughout the year. However, the length of irradiation also has an impact on increasing the temperature of solar panels. The higher the temperature of the solar panel, the output power will decrease and the life of the solar panel is reduced. The use of passive cooling from reference has a lower efficiency increase than active cooling. However, its installation requires lower costs, minimal maintenance, and no additional power requirements. This research will use 20WP monocrystalline solar panels with three cooling variations, namely: 1) with the addition of a thin aluminum plate and Vortex generator 2) By giving a tub of water under the panel 3) the Addition of aluminum fin. The three variations are compared with solar panels without cooling. The results on the first day showed a decrease in temperature of 2.30C with aluminum fin and an increase in power of 6.97% when using a water container. On the second day, a temperature decrease of 2.90C and a power increase of 5.81% when using aluminum fin coolers were recorded.
PENGARUH VARIASI KONSENTRASI PREKURSOR TERHADAP KARAKTERISASI NANOPARTIKEL ZINC OXIDE DENGAN METODE SOL-GEL Rahman, Purnama Auliya; Junus, Salahuddin; Hardiatama, Intan; Nashrullah, M Dimyati; Nurdiansyah, Haidzar
STATOR: Jurnal Ilmiah Teknik Mesin Vol 7 No 1 (2024): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

Nanomaterial research, especially in the field of experimentation, cannot be separated from characterization or measurement activities, with characterization we can be sure that the synthesized material meets the nanostructure criteria, one of which is nanometer-sized. In this study we will characterize ZnO nanomaterials from the sol-gel method. Sol-gel is a chemical method that changes the state of the sol (liquid) into a gel state which is then after treatment and the transition to solid oxide material. Zinc Oxide nanoparticles are made with variations in the precursor of Zinc Acetate Dyhidrate 0.3 M and 0.1 M produce crystalline nanomaterial sizes of 157-123 nm. The crystal lattice parameters obtained are a = 3.2714 Å and c = 5.2121 Å and structural characterization revealed a single phase of ZnO with hexagonal wurtzite structure. For the average particle size of Zinc Oxide nanoparticle produced is 86,64-12,60 nm and the morphological form of ZnO nanoparticles produced is spherical and particles agglomerate. The final results show that the increase in the variation of the Zinc Acetate Dyhidrate precursor will increase both the crystal size and the size of the particles produced.
OPTIMASI MESIN PULPER SILINDER GANDA (PUL-1K) TERHADAP KUALITAS PENGUPASAN KOPI DENGAN METODE BOX BEHNKEN DESIGN Ali, Muhammad Mukti; Hermawan, Yuni; Jatisukamto, Gaguk; Darsin, Mahros; ,, Sumarji; Hardiatama, Intan
STATOR: Jurnal Ilmiah Teknik Mesin Vol 6 No 2 (2023): JURNAL STATOR
Publisher : Jurusan Teknik Mesin

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Abstract

The expansion of plantation area increased by 74.33% with a growth rate of 1.61%, in 1980 the area of coffee plantation area was 707,464 ha, while in 2016 the area was 1,233,294 ha. The majority of the coffee cherries produced are robusta coffee cherries and grow at an altitude of 400-700 m above sea level with a temperature of 21-24ºC. A wet coffee berry skin peeler is used to separate the coffee fruit skin, the stripping quality results depend on the use of shaft rotation and the gaps of the peelers, and the gaps of the hoppers. Experimental testing method using the Behnken box design method using shaft rotation of 300 rpm, 400 rpm, and 500 rpm, gaps of the peelers 3 mm, 4 mm, and 5 mm, and 5 cm, 7 cm, and 9 cm of hopper gaps. The gaps of the hoppers has the greatest impact on the results of stripping quality with the smallest P-Value of 0.001 and the largest T-Value of -6.66. The best stripping quality results were obtained in the 6th experiment with shaft rotation of 400 rpm, 3 mm gaps of the peelers, and 5 cm hopper spacing with a stripping value of 87.5%. The predicted variant of the shaft rotation factor is 382.828 rpm, the gaps of the peelers is 3 mm, and the gaps of the hoppers is 5 cm. It is predicted that the results of the stripping quality will reach 88.16%
Co-Authors ,, Sumarji Agus Triono Ahmad Adib Rosadi Ahmad Adib Rosyadi Ahmad Syuhri Al Wafi, Adib Alfariz, Mohammad Rifqy Alfredo Bayu Satriya Andi Eko Wiyono, Andi Eko Andi Sanata Aris Zainul Muttaqin Aziz, Muhammad Lutfi Boy Arief Fachri Dama Krisna Bachtiar Dedi Dwilaksana Devlin, Nigel Gavriel Dian Purbasari Dian Purbasari Digdo Listyadi, Digdo Dinasti Achmad Tristanto Ditta Kharisma Yolanda Putri Doddy Parningotan Dwi Djumhariyanto Edoward Ramadhan, Mochamad Enruico, Aron Faiz Firdausi Faradin Adyatama Faris Ahmad Junaedi Freitas, Domingos de Sousa FX Kristianta Gaguk Jatisukamto Haidzar Nurdiansyah Hari Arbiantara Hari Arbiantara Basuki Hary Sutjahjono Hentihu, Fahrur Rozy Ibnu, Muhammad Khadafi Ilminafik, Nasrul Imam Sholahudin Indra Nurtjahjaningtyas khoirul fahmi aziz Kristianta, Franciscus Xaverius M Arief Hidayat M Dimyati Nashrullah M Edoward Ramadhan Mahatma Junjung Mardlotila Mahros Darsin Meta Fitri Rizkiana Misto Misto Mochamad Edoward Ramadhan Mochamad Trifiananto Muh Nurkoyim Kustanto Muh. Nurkoyim Kustanto Muhammad Dimyati Nashrullah Muhammad Mukti Ali Muhammad Trifiananto Nashrullah, M Dimyati Nasrul Ilminnafik Nugraha, Raafi Aditya Nur Widodo Prabowo Restu Eranio R. Koekoeh Koenjtoro Wibowo Rahma Rei Sakura Rahman, Purnama Auliya Renald Rochman Mauludy Ririn Endah Badriani, Ririn Endah Robertus Sidartawan Rudi Sugara, Imam Salahuddin Junus Santoso Mulyadi Skriptyan Noor HS Sumarji Syuhri, Skriptyan N. H. Trifiananto, Muhammad Wiradika, Yudha Yudah, Norman Audi Erlangga Pradipta Yuni Hermawan