Article Per Year (5 Year)
p-Index From 2020 - 2025
0.983
P-Index
This Author published in this journals
All Journal Jurnal Universal Technic Jurnal Penelitian Rumpun Ilmu Teknik Jurnal Sains dan Teknologi Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Sunu Arsy Pratomo
Unknown Affiliation
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Penambahan Berat Sic Pada Komposit Matrik Aluminium Dalam Sifat Fisis Dan Mekanis Diperkuat Tib Sebagai Penghalus Butir Lilin Hermawati; Sunu Arsy Pratomo; Sugeng Hariyadi
Jurnal Penelitian Rumpun Ilmu Teknik Vol. 2 No. 2 (2023): Mei : Jurnal Penelitian Rumpun Ilmu Teknik
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juprit.v2i2.1968

Abstract

Aluminum is an excellent material for making composites because it is lightweight, ductile, does not corrode easily and is easier to shape and fabricate. Various properties of existing aluminum, aluminum has mechanical properties that are not good, namely very low hardness. In a good method for processing aluminum, namely stir casting, why is this method used because it is quite cheap and easy to process by means of an alloy that is heated with an adjusted heat and stirred to mix all the existing composite materials and given reinforcement or grain refiner to obtain a good and evenly distributed composite metric without reducing the function of the existing composite. The method used in this study serves to improve the mechanical properties of a metal and SiC is used as a reinforcement and TiB is used as a grain refiner. SiC has advantages over other ceramic materials, namely it bonds easily with aluminum and does not cause oxidation of aluminum metal. Increasing the wetability of metal alloys with reinforcement, the technique used is by stirring when the liquid metal is in a semisolid phase. This research focused on variations in weight percent SiC powder 0%, 5%, 7.5%, and 10% and the addition of 5% Tib. To determine the physical and mechanical properties of the Al-SiC-TiB composite, several tests were carried out, namely density, porosity, hardness, bending and microstructure tests. The results of the tests showed that the highest density value was found at 0% SiC by weight at 2.70 gr/cm3, the lowest at 10% SiC at 2.65 gr/cm3. Porosity calculations show that the highest porosity value is found in 10% SiC by weight of 3.16%. The highest hardness test result was 10% SiC by weight at 72.6 HRB and the bending test result with the highest hardness value at 10% SiC by weight was 371.5 MPa. The test results show that the mechanical properties increase with the increase in the percentage of SiC powder up to 10% and with the addition of TiB the finer grains are produced so that the porosity decreases.
Studi Kelayakan Proses Pengelasan Smaw Dan Fcaw Di Pt. Dok Jmi Semarang Dari Aspek Teknis Dan Ekonomis Sugeng Haryadi; Sunu Arsy Pratomo
Jurnal Sains dan Teknologi Vol. 2 No. 2 (2023): Desember : Jurnal Sains dan Teknologi
Publisher : Fakultas Teknik Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58169/saintek.v2i2.219

Abstract

The development of welding technology in this era took place rapidly, especially in the sector of new ship building and ship construction repair. Incorrect welding activities often cause delays which cause costs, time and consumables losses. In order to develop the speed and efficiency of the welding work, it is mandatory to determine a welding method that is suitable for the site conditions. This study provides a choice of three welding methods consisting of the SMAW and FCAW welding methods based on their strength and economic value. To strengthen the results of welding can be tested with a destructive test consisting of a tensile test, bending test and impact test. Next, the calculation of the welding cost per kg, welding speed per meter and electrode consumption is carried out to find out the difference in the economic value of all the welding materials. When tested, it was found that there was no difference in tensile strength between SMAW and FCAW. Welding method, maximum 1%, but SMAW welding method has 4% better yield strength than FCAW welding method. The ductility value of the FCAW welding method is 34% better than the SMAW welding method. The FCAW welding method has 67% better economic value when compared to the SMAW welding method. The FCAW welding method has a speed of 72% better than the SMAW welding method, and the FCAW welding method is 50% more efficient than the SMAW welding method.
PEMODELAN INFRASTRUKTUR HIDROGEN UNTUK APLIKASI FUEL CELL DAN DAMPAKNYA TERHADAP ERA EKONOMI HIDROGEN STUDI KASUS DI KOTA SEMARANG Bayu Murti; Sunu Arsy Pratomo
Jurnal Universal Technic Vol. 1 No. 1 (2022): April: Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2649.346 KB) | DOI: 10.58192/unitech.v1i1.19

Abstract

The hydrogen economy is a shift in the use of fossil energy to energy derived from hydrogen. Currently, Energy experts are trying to find fuel from new and renewable energy, especially in the transportation sector. This study seeks to determine the profile of energy consumption in the city of Semarang, especially in the transportation sector with simulation calculations in a certain year. By knowing the profile of energy consumption in the transportation sector in the city of Semarang, the output of this research is a planning study to build hydrogen economic infrastructure and make possible steps. At the end of this paper, it will be known how big the potential for hydrogen infrastructure development is so that later it can be a guide in determining the right policy in carrying out hydrogen infrastructure development in the city of Semarang. The design capacity of hydrogen production at PT. SAMATOR is 1000 m3/hour. Production breakdown per day : 550 m3/hour x 24hours = 13,200m3. If the production is maximized for 360 days per year, the total hydrogen production in Semarang is 4,752,000m3. In 2020, the demand for hydrogen in the city of Semarang = 1,955,780 m3. With this research data, it can be analyzed that hydrogen production in the city of Semarang can meet the needs of hydrogen for transportation in the city of Semarang.
Analisis Keselamatan Pelayaran Berbasis Analytical Hierarchy Process PT. ASDP Indonesia Ferry (Persero) Bakauheni Lampung Selatan Hijrah Faqih Ramadhan; Purwanto Purwanto; Sunu Arsy Pratomo
Globe: Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan Vol. 2 No. 3 (2024): Publikasi Ilmu Teknik, Teknologi Kebumian, Ilmu Perkapalan
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/globe.v2i3.506

Abstract

The transportation sector has a very vital and strategic contribution to national development, because of its role as a driver and driver of development activities and a glue for the gap between regions. Ferry transportation is transportation that functions as a bridge connecting one area with another area separated by waters. The purpose of writing this paper This article was written to find out and explain the safety equipment standards, what types of safety equipment are there, and how many are there and how many crew members are on the ferry in accordance with applicable regulations. As well as the condition of passenger safety equipment on KMP. Sebuku, KMP. Portlink V, KMP. Jatra III and find out which ship is the most complete, and has the most safety equipment and crew on board. The method used in writing this paper uses the observation method, interviews, and literature studies. In this case, data collection is in the form of observation data, as well as a collection of documentation and data related to safety equipment.
ANALISIS KINERJA FORKLIFT BERBASIS OVERALL EQUIPMENT EFFECTIVENESS (OEE) DI GUDANG TERMINAL PETI KEMAS SEMARANG Ardhia Salsabilla Pramesti Azzahra; Purwanto; Sunu Arsy Pratomo
Jurnal Universal Technic Vol. 3 No. 2 (2024): Oktober: Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v3i2.3035

Abstract

Pengelolaan kinerja forklift di Gudang Terminal Peti Kemas Semarang memiliki peran penting dalam keefektifan stripping barang impor Less Container Load (LCL). Tujuan penelitian (1) mengetahui hasil perhitungan nilai rata-rata availability ratio pada kinerja forklift dalam kegiatan stripping di Gudang Terminal Peti Kemas Semarang, (2) mengetahui hasil perhitungan nilai rata-rata performance ratio pada kinerja forklift dalam kegiatan stripping di Gudang Terminal Peti Kemas Semarang, (3) mengetahui hasil perhitungan nilai rata-rata quality ratio pada kinerja forklift dalam kegiatan stripping di Gudang Terminal Peti Kemas Semarang, (4) mengetahui hasil perhitungan nilai rata-rata Overall Equipment Effectiveness (OEE) di Gudang Terminal Peti Kemas Semarang. Metode penelitian yang digunakan adalah metode Overall Equipment Effectiveness (OEE) melalui tahapan-tahapan perhitungan (1) perhitungan data penurunan waktu forklift tahun 2023 (2) perhitungan nilai availability ratio (3) perhitungan nilai performance ratio, (4) perhitungan nilai quality ratio, (5) perhitungan nilai indeks Overall Equipment Effectiveness (OEE). Nilai rata-rata availability ratio adalah -0,1616666 %, dimana standar JIPM > 90 %, sehingga hasil menunjukkan ketersediaan forklift tahun 2023 rendah. Penyebabnya bulan Juni forklift mengalami kerusakan mpu board sehingga menjalani perbaikan selama 720 jam untuk waiting part modul fet fm dan board comp dan bulan Juli forklift mengalami kerusakan mesin forklift sehingga menjalani perbaikan selama 744 jam. Nilai rata-rata performance ratio adalah 106,7925 %, dimana standar JIPM > 95 %, sehingga hasil menunjukkan forklift memiliki kemampuan yang baik dalam pengangkutan produk. Nilai rata-rata quality ratio adalah 100 %, dimana standar JIPM > 99 %, menunjukkan kualitas pengangkutan barang baik. Nilai indeks Overall Equipment Effectiveness (OEE) adalah 9,99483 %, dimana standar JIPM > 85 %, menunjukkan produksi memiliki nilai yang rendah.
Co-Authors Ardhia Salsabilla Pramesti Azzahra Bayu Murti Hijrah Faqih Ramadhan Lilin Hermawati Purwanto Purwanto Purwanto Sugeng Hariyadi Sugeng Haryadi