cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Steven Darmawan
Contact Email
tm@untar.ac.id
Phone
+62215672548
Journal Mail Official
tm@untar.ac.id
Editorial Address
Program Studi Teknik Mesin Universitas Tarumanagara Kampus 1, Gedung L lantai 5 Jl Let. Jend. S. Parman No. 1 Jakarta Barat 11440 Indonesia
Location
Kota adm. jakarta barat,
Dki jakarta
INDONESIA
Jurnal Ilmiah Teknik Mesin Poros
Published by Universitas Tarumanagara
ISSN : 1410684     EISSN : 24424501     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Focus and Scope Jurnal ini fokus pada hasil penelitian para dosen dan akademisi dalam bidang keilmuan: - Perancangan Mekanikal - Otomasi, Robotika - Konversi Energi - Energi Terbarukan - Proses Manufaktur - Material dan Metalurgi - Mekanika Komputasi (CFD, FEA)
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 128 Documents
 9   10   11   12   13 
ANALISIS ALIRAN PADA BUCKET TURBIN PELTON 1 KW DENGAN VARIASI SPEAR NOZZLE MENGGUNAKAN METODE CFD Darmawan, Steven; Sutanto, Hadi; De Fretes, Anthon; Octaviani, Sandra; Tanujaya, Harto; Rosehan, Rosehan; Marcellio, Ricco
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.25627

Abstract

Pelton turbine have been used for harvesting renewable energy by extracting kineticenergy of water into mechanical energy for more than 100 years. This characteristic makes thissystem remains potential to achieve Goals #12 SDGs. During the operation, the performance ofPelton Turbine is affected by several parameters: hydraulic power, water flow rate, bucketdesign, and nozzle. Among others, nozzle design is the most challenging since this part isresponsible to drive the water direction strike the buckets, converting impulse. The performanceof existing 1 kW Pelton Turbine equipped with 15mm Spear Nozzle is believed can be improvedby varying the nozzle diameter by using low-cost CFD simulation procedure. Ansys Fluent fromAnsys Student 2021 R1 is used in this research. Represented by two-buckets facing spear nozzle,three dimensional CFD simulation is conducted. The nozzle diameter is varied to 15 mm, 14 mm,and 13 mm from two configurations. The first and second configuration is done with water flowrate 3,3 kg/s and 1,3 kg/s respectively. The results show that 15 mm nozzle diameter can producehigher power as high as 594,08 Watt with the first configuration. Even though at the secondconfiguration this 15mm nozzle diameter did not produce the highest power, other parameterssuch as splashing water and erosion effect still show that the 15mm nozzle diameter performedbetter than others. This simulation results also consistent with experimental results whichperformed by using first configuration and 15mm nozzle diameter. The results also show that thesistem performance is much higher at higher water flow rates. Therefore, the development of thesystem can be continued to by using spear nozzle with diameter higher than 15mm.
Karakterisasi Material Hanger Panjat Tebing Kwintarini, Widiyanti; Sonawan, Hery; Alqurin, Wais
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.26654

Abstract

The Rock climbing hangers function as anchors for safety when climbing and are usually used for cliff surfaces that have few natural anchors. The tests that will be carried out in this research are chemical composition testing, hardness testing and metallographic testing. Testing the chemical composition of materials aims to find out what alloys are in imported and local rock climbing hangers. In the material composition test results, the imported rock climbing hangers are Austenitic Stainless Steel 304, because they contain 18.49% Chromium (Cr) and 7.92% Nickel. The local rock climbing hangers are low carbon steel, because they contain 0.056% Carbon © elements. The hardness value of imported rock climbing hangers is greater, namely 292 HVN, compared to local rock climbing hangers which have a hardness value of 136 HVN. Local rock climbing hangers are low carbon steel so they are dominated by the ferrite phase and there is a small amount of pearlite phase. Meanwhile, the imported rock climbing hangers are Austenitic Stainless Steel 304 which have undergone a cold rolling process. The tensile test results show that the imported hanger has a stress value of 7655 N or 729 MPa, higher than the local hanger with a stress value of 2826 N or 259 MPa
KEKUATAN LELAH DUCTILE IRON THIN WALL CONNECTING ROD VESPA PX-150: KEKUATAN LELAH DUCTILE IRON THIN WALL CONNECTING ROD VESPA PX-150 Oktaviano, Yoska; Fadhlan, Muhammad; Sulamet-Ariobimo, Rianti Dewi
POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i1.26762

Abstract

The use of lightweight components in automotive is one of the strategies that can be taken to support energy resiliencies. Vehicles using lightweight components use less energy compared to those using the normal ones. Lightweight connecting rods have been successfully manufactured using thin wall casting technology. This piston rod is up to 26% lighter than the original component, which was made from forged steel. This thin-wall connecting rod possesses the capabilities of a normal connecting rod. A fatigue test is carried out to ensure the safety of the new design component during application. Fatigue testing was carried out by applying a dynamic force to a connecting rod of one million cycles with a force of 17KN following the ISO 10833 minimum fatigue limit without notches.
SIMULASI STRESS PADA MESIN PENIRIS MINYAK Indra, Elvan; Darren Halim, Alessandro; Ilham Sekayu, Muhammad; Rosehan
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.26778

Abstract

Every food that is frequently consumed nowadays usually uses cooking oil as a frying tool. Indonesian people, both in urban and rural areas, consume fried foods in their daily lives. Therefore, by designing an oil drainer, we can overcome the problem in terms of time in draining oil from fried onions. In this oil dryer there are main components to drive the oil dryer system in the form of perforated baskets, shafts, AC electric motors, v-belts, pulleys, bearings, and table. The material used in this oil dryer uses food grade materials, for the safety and health of users of this oil dryer. The oil dryer has a capacity of 3 kg at one time the frying of fried onions is then calculated to find out which material is suitable for use in the oil slicer, then performs a simulation to determine the strength of the material selection used.
PENGARUH PEMBESARAN DIAMETER DAN PEMOLESAN INLET PORT PADA MESIN 4 TAK 150CC SOHC Aji, Abigunto Amoro Aji; Ivan Halim; Harry Munandar; Larasati Rizky Putri
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.26917

Abstract

Porting & polishing is the process of enlarging the diameter of the cylinder head intake and exhaust duct holes, as well as smoothing the surface. This modification is carried out manually by a mechanic who has experience. This research examines changes in diameter and surface roughness on machine performance, namely power and torque. A number of samples with volume of cylinder 148,7 cc motorbikes were ported & polished manually for 1, 2 and 3 hours. Changes in diameter and surface roughness were recorded both before and after processing. Next, using a Dynoyet 250i dynamometer, power and torque measurements were carried out. A smooth surface will cause the fuel to touch the surface and evaporate, thus increasing the mixture of air and fuel because both are in the same phase and condition. Furthermore, in the diameter change range of up to 10.36% from the initial diameter, it was recorded that the increase in power and torque could reach 8.94%. In this way, porting & polishing is able to fulfill the racers' desires for competition activities
HUBUNGAN NILAI CE DENGAN LAPISAN KULIT THIN WALL DUCTILE IRON Fadhlan, Muhammad; Sulamet-Ariobimo, Rianti Dewi; Oktaviano, Yoska
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.27322

Abstract

The formation of skin effects in nodular cast iron produced using sand molds is a general problem. Since it can be cleaned during the machining process along with gating system removal. Skin effects become a problem when they form in nodular cast iron thin wall castings. In thin-wall castings, the skin effect becomes a problem because the cleaning process is difficult to perform. Therefore, a mechanism is needed to avoid the formation of skin effects in nodular cast iron thin wall castings. This work is carried out to see the effects of carbon equivalent (CE) as one of the important parameters during the casting process to the formation of skin effects, especially when the cast object produced is a component. Molten metals with different CE values are used to make thin wall ductile iron connecting rod components. Microstructure observations were carried out both in the I-beam and end-rod areas. Then the results obtained are compared with the previous research regarding the skin effects formed in thin-wall ductile iron plates. The result obtained is that the skin effects detected in thin-wall ductile iron connecting rods with different types of patterns and thicknesses from that formed on the plate.
PENGARUH VARIASI FLUKS TERHADAP SIFAT FISIK DAN MEKANIK HASIL SAMBUNGAN LAS GMAW (GAS METAL ARC WELDING) BAJA AISI 1018 Purwaningrum,, Yustiasih; Firmansyah, Daffa Rizal; Noorseta, Edo Setya
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.29071

Abstract

The aimed of this study was to determine the effect of flux variations on physical and mechanical properties of GMAW welded joints. This research uses AISI 1018 steel with a size of 300 mm x 100 mm and a thickness of 5 mm. The welding process is carried out using the Gas Metal Arc Welding (GMAW) method, ER70S-6 filler and shielding gas mixture of Argon and CO2 (50% and 50%). The flux variations used are ZnO, Al2O3, dan SiO2.. The tests carried out are dye penetrant testing, chemical composition testing, microstructure observation, tensile testing, bending testing and hardness testing. The results of dye penetrant testing show that welding results with all flux variations can be well jointed. Testing the chemical composition of the welding results shows that the chemical elements of the welding results will rise according to the main chemical elements of the flux. . The highest value of tensile strength and bending strength of welds is found in welds with the addition of ZnO flux. . This is in accordance with the results of microstructure observations that show welds with ZnO flux have the most microstructures in the form of accicular ferrite compared to grain boundary ferrite and widmanstatten ferrite. Accicular microstructure will increase the strength and toughness of the material due to its small shape and random directional orientation. The hardness number of welding results for all welding variations has almost the same value, which is approximately 190 VHN.
PEMBANGKITAN TEGANGAN MENGGUNAKAN KARBON AKTIF TEMPURUNG KELAPA DENGAN VARIASI PROSENTASE NACL Gunawan Tista, Si Putu Gede
POROS Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/poros.v19i2.29109

Abstract

Fossil fuels as energy generators have been identified as the main cause of environmental pollution, besides that their supplies are running low. Energy from fossil fuels can cause global warming and climate change due to the carbon dioxide gas emissions produced, causing a greenhouse effect. Therefore, to generate electrical energy, environmentally friendly materials are needed, one of which is coconut shell-activated carbon. This research aims to generate voltage using coconut shell-activated carbon with varying percentages of NaCl. The voltage generation model is composed of counter electrodes – electrodes – counter electrodes. The electrode used is coconut shell-activated carbon, while the counter electrode is copper. The electrolyte used was a NaCl solution with NaCl percentages of 5%, 10% and 15% respectively. The NaCl electrolyte is injected into the model between the electrode and the counter electrode, then heat is applied. An electrostatic force occurs between the ions from the NaCl electrolyte and the surface of the coconut shell-activated carbon, namely the functional groups, pores, and copper counter electrode. The results show that the higher the percentage of NaCl electrolyte, the higher the voltage produced. The resulting voltage is 0.091 volts at a NaCl percentage of 5%, 0.181 volts at a NaCl percentage of 10%, and 0.212 volts at a NaCl percentage of 15%.

Page 13 of 13 | Total Record : 128

 9   10   11   12   13 

Filter by Year

2014 2023


Reset
Filter By Issues
All Issue Vol. 19 No. 2 (2023): Jurnal Ilmiah Teknik Mesin POROS Vol. 19 No. 1 (2023): Jurnal Ilmiah Teknik Mesin POROS Vol. 18 No. 2 (2022): Jurnal Ilmiah Teknik Mesin POROS Vol. 18 No. 1 (2022): Jurnal Ilmiah Teknik Mesin Poros Vol. 17 No. 2 (2021): Jurnal Ilmiah Teknik Mesin Poros Vol 17, No 1 (2021): Jurnal Ilmiah Teknik Mesin Poros Vol 16, No 2 (2018): Jurnal Ilmiah Teknik Mesin Poros Vol 16, No 1 (2018): Jurnal Imiah Teknik Mesin POROS Vol 15, No 2 (2017): Jurnal Ilmiah Teknik Mesin POROS Vol 15, No 1 (2017): Jurnal Ilmiah Teknik Mesin POROS Vol 14, No 2 (2016): Jurnal Ilmiah Teknik Mesin POROS Vol 14, No 1 (2016): Jurnal Ilmiah Teknik Mesin POROS Vol 13, No 2 (2015): Jurnal Ilmiah Teknik Mesin POROS Vol 13, No 1 (2015): Jurnal Imliah Teknik Mesin Poros Vol 12, No 1 (2014): Jurnal Ilmiah Teknik Mesin POROS Vol 12, No 2 (2014): Jurnal Ilmiah Teknik Mesin POROS More Issue