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Irvan Rondonuwu
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Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Variasi Dimensi Pipa Kapiler Sebagai Katup Ekspansi Terhadap Laju Pendinginan Pada Mesin Pendingin LUCAS NULLE TIPE RCC2 Reki Karangan; Frans Palobo Sappu; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 7 No. 2 (2018): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

One component of the cooling engine that plays an important role in the reducing temperature and refining pressure is the expansion valve.This research is fair to know the rate of cooling and elecricity consumption of a T2 type thermostatic expansion valve and a capillary pipe with a constant legth of 2 m with a diameter of 0,028 inches and 0,036 inches using the Lucas Nulle Type RCC2 cooling machine. The value of the result is obtained from three experiments for each tool for one hour.Based on the observations it was found that the average cooling rate using a T2 type thermostatic expansion valve can achieve a temperature decrease of up to 2,87 oC with an electricity consumption of 201,96 watts, for each capler using a 0,028 inch diameter decrease in temperature can reach up to -0,33 oC with electricity consumption of 198,22 watts and for the use of 0,036 inch diameter capillary pipe the temperature decreases can reach up to 5,37 oC with electricity consumption of 211,31 watts. Key word : T2 type thermostatic expansion valve, capillary pipe
AUTOMASI ALAT UJI TARIK TIPE TERCO MT 3017 BERBASIS MICROCONTROLLER Franklin Tuerah; Markus Karamoy Umboh; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 9 No. 1 (2020): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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This research is to modify the TERCO MT3017 type tensile test equipment which is still manual by using supporting components of the Stepper Motor, Pressure Sensor and Distance Sensor, so that the tensile testing instrument is developed into a test tool that becomes more efficient in terms of object testing.The purpose of this research is to design and build automation Tensile Test Equipment based on a microcontroller, using a drive component and a pressure reader so that it can get more efficient data.The results obtained from the TERCO MT3017 type tensile testing tool are getting a composite test specimen diagram in general where the tensile force increases in accordance with the extension of the test specimen. Keywords: Tensile Test Equipment, Microcontroller, Stepper Motor
ANALISIS DEFLEKSI BENDA KERJA DITINJAU DARI KEDALAMAN POTONG PADA PROSES BUBUT Yeremia Sianturi; Stenly Tangkuman; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 9 No. 2 (2020): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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The purpose of this research is to obtain relations of workpiece’s deflection toward cutting force related to gripping distance, and to analize deflection towards parameters of the depth cutting and cutting rotation velocity at 300 rpm and 1600 rpm. The first result, is the deflection of workpiece is getting larger by the depth of cutting is increases. The second result, is the difference of deflection towards cutting rotation velocity variations. Number of workpiece’s deflection, showed small reduction at 300 rpm towards 1600 rpm. However, deflections numbers remain constant showed by the statistics data, because of the small variation. This research showed that, at the low cutting velocity the workpiece’s deflection is larger compare to high cutting velocity. Refer to deflection number, the recommended cutting velocity is 1600 rpm.Keywords: Depth of cutting, Deflection of workpiece, The lathe
SIMULASI PENGARUH JUMLAH DAN PANJANG SUDU TERHADAP DAYA TURBIN ANGIN TIPE POROS HORISONTAL Josua Simanjuntak; Stenly Tangkuman; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 10 No. 1 (2021): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Wind power is a power plant that uses wind as an energy source to produce electrical energy. This plant converts wind energy into electrical energy using wind turbines or windmills. The purpose of this study was to obtain the simulation result of comparison wind turbine power on variations number and length. The conclusion of this study is increasing number and length of sudus in the Ansys 2020 R1 simulation, the greater power produced. The greatest power was obtain in the variation of the turbine with a number of sudus 6 and 2 meter of length is 1290 Watt.Keywords: Horizontal axis wind turbine, Simulation, Power, Torque
Perancangan Struktur Menara Turbin Angin Savonius Tipe-L Untuk Pembangkit Listrik Pada Rumah Tinggal Renalldy Djodjobo; Stenly Tangkuman; Irvan Rondonuwu
JURNAL POROS TEKNIK MESIN UNSRAT Vol. 11 No. 1 (2022): Jurnal Poros Teknik Mesin Unsrat
Publisher : Fakultas Teknik Jurusan Teknik Mesin Universitas Sam Ratulangi

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Abstract

The tower structure of a wind power plant must be able to support other parts such as wind turbines, gearboxes and alternators. Thus the tower structure must be designed to be strong to withstand the heavy loads of other components and more specifically wind loads that can bend or break the tower structure if it is not strong enough.The purpose of this research is to calculate the load on the tower and design the tower structure for the L-type savonius wind turbine. Next, make a miniature tower to complete the miniature wind power plant which is the object of research.The tower structure is designed using pipes with dimensions; 2500 mm high, 203.20 mm outside diameter, 183.2 mm inside diameter, and 10 mm thick. The gearbox holder is made of 50 mm x 50 mm hollow steel with a thickness of 1.8 mm. The results of the static simulation of the tower structure using Solidworks 2016 show that the maximum von Mises stress is 1.33 MPa, and the maximum displacement is 1.84 mm.The designed tower is implemented in a miniature with a scale of 1:5, has a height of 50 cm and a pipe diameter of 2 inches, the gearbox holder is made of S 45 C strip steel with a size of 17 cm x 5 cm and a thickness of 5 mm. Keywords: PLTB, L-type savonius wind tower structure, Static simulation
Co-Authors Franklin Tuerah Frans Palobo Sappu Josua Simanjuntak Markus Karamoy Umboh Reki Karangan Renalldy Djodjobo Stenly Tangkuman Yeremia Sianturi