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Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin
Published by Universitas Halu Oleo
ISSN : -     EISSN : 25028944     DOI : -
Core Subject : Engineering,
Mechanical Engineering
Jurnal ENTHALPY memuat artikel hasil penelitian tugas akhir mahasiswa di lingkup Jurusan Teknik Mesin, Fakultas Teknik Universitas Halu Oleo Entalpy Jurnal Ilmiah Mahasiswa Teknik Mesin diterbitkan 4 (empat) kali setahun pada bulan Februari, Mei, Agustus dan November.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 5 Documents
 1 
Search results for , issue "Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin" : 5 Documents clear
Studi Potensi Pembangkit Listrik Tenaga Mikro Hidro Di Desa Masolo Raya Dalam Inovasi Turbin Pelton Dengan Sumbu Horizontal Muhamad Suparjo; Ridway Balaka; Kadir Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (426.421 KB) | DOI: 10.55679/enthalpy.v5i2.12621

Abstract

The purpose of this research is to find out how much electricity is in the mango river in the Mosolo Raya village. The research method used is to measure the flow of water with a storage method, measurement of water flow velocity, measurement of water falls height and the manufacture of Pelton turbine blades. The results showed that the largest water discharge value was 0.018182 m3/s on the 4th measurement, and the smallest water discharge value was 0.014679 m3/s on the 8th measurement, the largest speed value was 7.333225 m/s on the 4th measurement and the smallest speed value was 5.920402 m/s on the 8th measurement, the largest power value is 1215,984 watts on the 4th measurement and the smallest power value is 981.7119 on the 8th measurement. So, it can be concluded that the potential value of the mango river with the average electric power generated during the measurement is 110,779 Watt.Keywords: Power plant, horizontal axis, pelton turbine, mini hydro power
Analisa Pengaruh Variasi Media Pendingin Terhadap Kekerasan dan Kekuatan Tarik Sambungan Las Menggunakan Pola Ayunan Melingkar Pada Baja Carbon Sedang Weldi Susanto; Kadir Kadir; Abd. Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (349.783 KB) | DOI: 10.55679/enthalpy.v5i2.12623

Abstract

Has conducted research on the analysis of the influence of cooling media variations on the hardness and tensile strength of welded joints using circular swing patterns on medium carbon steel. This study aims to determine the effect of cooling media variations on hardness and tensile test using circular swing patterns on medium carbon steel. The method used in this study is that steel is given heat treatment (welding) using 100 amperes, which are then subjected to rapid cooling with oil, air, and water-cooling media. After the welding process and the formation of specimens, tensile testing and hardness testing are done using the Vickers (HVN) method. The results of this study are: (1) the tensile strength welding results obtained on oil cooling media with a value 337.3956 MPa, strain 12.08333 %, elastic modulus 27.948202 MPa, air conditioning media with a voltage value of tensile 470.11347 MPa, strain 13.155557 %, elastic modulus 53.460519 MPa, water cooling media obtained tensile stress  548.165333 MPa, strain 36.6666667 % elastic modulus 15.0436717. (2) The level of violence in both the weld area and the HAZ area did not show a significant difference. The highest hardness is in water cooling where the hardness of 192.35 in the weld area is obtained 194.61 HVN hardness obtained. The lowest hardness occurred in air cooling where 168.65 hardness was obtained in the weld area while for the HAZ area 153.79 HVN hardness was obtained.Keywords: SMAW, circular swing pattern, hardness test, tensile test
Analisa Prestasi Mesin “MAK 8M453 C” Pada PT. PLN (Persero) Sektor Pembangkitan Kendari Unit Pembangkit Wua-Wua La ode Muhammad Zailand; Salimin Salimin; Abd. Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (379.98 KB) | DOI: 10.55679/enthalpy.v5i2.12624

Abstract

One type of prime movers that is widely used is a heat engine, a machine that uses thermal energy to do mechanical work. This study aims to determine how much achievement is produced by the MAK 8M453C Diesel engine.  In this study the authors used a thermometer, compression tester and multimeter to measure and calculate the data taken in the study. Calculation results obtained Ni indicated power generated is 3489.9 hp, Ne Effective Power of 31025 hp, while the engine power according to engine data is 3804.3 hp or 2800 Kw. From these figures, power decreased slightly by 8.2 %. This is caused by pressure loss of spraying and wear and tear on some parts of the engine. Effective fuel consumption of 0.12 kg/hp-hr and effective thermal efficiency of 52.26 %.  Keywords: Power of indication, effective power, efficiency. 
Pengaruh Orientasi Sudut Anyam Lamina Pada Fiberglass Terhadap Kekuatan Tarik Komposit Matriks Polyester Risal Risal; Sudarsono Sudarsono; Abd. Kadir
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (382.363 KB) | DOI: 10.55679/enthalpy.v5i2.12647

Abstract

The purpose of this research is to find the tensile strength of fiberglass composite against the orientation of the lamina weaving angle. In this research composite making uses a hand lay-up method, with a fiber-matrix fraction of 30 % : 70 %. Specimen were made with ASTM D 638-01 tensile test standar. The result showed that the highes tensile test specimen value with the orientation of the weaving lamina angel is 0o/90o, 0o/90o, 0o/90o, 0o/90o, 0o/90o, 0o/90o, 0o/90o, 0o/90o which is 135,568 N/mm2. While the lowest tensile test specimen value are in the orientation of the weaving angles of lamina 0o/90o, 15o/105o, 30o/120o, -15o/-105o, -15o/-105o, 30o/120o, 15o/105o, 0o/90o, with voltage values tensile strength of 106,447 N/mm2. Keywors: Composite, fiberglass, angle orientation, tensile trength.
Analisis Performa Kompor Bertekanan Menggunakan Bahan Bakar Minyak Pirolisis Dan Minyak Tanah Rasyid Rasmin; Budiman Sudia; La Hasanudin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 5, No 2 (2020): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (521.482 KB) | DOI: 10.55679/enthalpy.v5i2.24377

Abstract

The scarcity of fuel oil (BBM) that occurs due to the limited amountr. Therefore, alternative energy is needed to overcome these problems, one of which is the use of plastic pyrolysis oil on pressure cookers ini the household sector among the lower class of society. The purpose of this study was to determine the performance of a pressurized stove using pyrolysis oil and kerosene as fuel. The method used in this research is an experimental method by making pyrolysis oil and mixing kerosene, taking personal data directly with several variations of the mixture. The results of the research on the performance of a pressurized stove by heating 2.5 liters of water show that the most efficient use of fuel ini a mixture of 80% kerosene and 20% pyrolysis oil produces the highenst average temperature of 349 degrees Celcius, maximum flame height of 26 cm, the fastest water boiling time is 10:46 minutes by using at least 130 ml of fuel.Key words: Alternative fuel, pyrolysis, kerosene, performance 

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