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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 6 Documents
 1 
Search results for , issue "Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin" : 6 Documents clear
Analisis Distorsi Berbasis Metode Elemen Hingga Pada Proses Pengelasan Kampuh U dan V Erikman Erikman; Yuspian Gunawan; Prinob Aksar
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.692 KB) | DOI: 10.55679/enthalpy.v7i3.27124

Abstract

The purpose of the study is to find out the influence of the type of welding on deformation produced by using the element method up to through ansys software. The material used in this study is AlSl 4130 steel material the process of connecting metal or distributing temperature into the connection material is carried out using ansys software with camphor used campuh U and V. The temperature given to the material is 1500°C. The results of the largest deformation research in the U camp are 0.00074711 m while in camphor V the total deformation formed from the welding temperature given is 0.00034381 m. The total difference in deformation formed in each camp is caused by the concentration of temperature that occurs in the material caused by the amount of temperature filling in the camp.keywords: Deformation, welding camp, temperature distribution
Analisa Pengaruh Variasi Jumlah Nozzle Dengan Memanfaatkan Ketinggian Aliran Air Terhadap Daya Listrik Yang Dihasilkan Turbin Pelton La Ode Yasir; Ridway Balaka; Nanang Endriatno
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (536.77 KB) | DOI: 10.55679/enthalpy.v7i3.26504

Abstract

The performance of a Pelton turbine is influenced by the height, flow velocity, blade angle, number of nozzles, flow size and number of blades and nozzle spray distance. The purpose of this study was to determine the effect of variations in the number of nozzles and nozzle angles on the power produced by the PRLton turbine. The test results show that the more nozzles used, the greater the power generated and the smaller the nozzle angle, the greater the power generated. In position I using 1 nozzle, at an angle of 25o the electrical power produced is 6.16 Watt, at an angle of 30o the electric power produced is 2.65 Watt, at an angle of 45o the electrical power generated is 0.1 Watt. While in position II using 2 nozzles, , at an angle of 25o the electrical power produced is 7.56 Watts, at an angle of 30o the electrical power generated is 3.76 Watts, at an angle of 45o the electrical power generated is 0.24 Watts.Keywords: Electric power, Nozzle, Pelton turbine 
Pengaruh Jumlah dan Panjang Blade Terhadap Performa Kincir Angin Esau Irsan Pongbarib; Lukas Kano Mangalla; La Hasanudin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (400.831 KB) | DOI: 10.55679/enthalpy.v7i3.27114

Abstract

Energy needs continue to increase in line with the increasing population, while fossil energy is very limited and has a negative impact on the environment. Therefore, alternative energy sources such as wind energy are very important to be developed. This study observes the effect of the number of turbine blades and blade length on the rotation and current output. The study was conducted experimentally using the 2, 3, and 4 number of blades, while the length was varied from 10 cm, 15 cm and 20 cm. The blades performance is compared by measuring the blade rotation and current generated from an electric dynamo connected to the blade rotation. We also carried out several variations of wind speed for each number and length of the blade. The results showed that the number of blades 3 and 4 produced almost the same electric current and rotation while the number of blades of 2 was much smaller. It can also be seen that the blade length of 15 cm gives a large rotation followed by a length of 20 cm and 10 cm.Keyword: Windmill, blade length, performance
Perancangann Alat Angkat Mesin Mobil Sistem Hidrolik Muh Aswar; Raden Rinova Sisworo; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (543.47 KB) | DOI: 10.55679/enthalpy.v7i3.26505

Abstract

This lifting device is for lifting and lowering loads supported by truss mechanism and a hydraulic jack with a maximum lifting capacity of 480kg. The device focuses on lifting the car engines with a lifting mechanism consisting of strusses, a hydraulic jack capacity of 3 tons, and a chain package with hooks to hang the load. Method of this research is a library research as main sources to design the device. Outcome of this research is a design of lifting device for maximum lifting capacity of 400 k. Material of hook is steel carbon S45C with a maximum tensile stress of 13.26 kg/mm2 . Lifting chain is made of steel alloys Grade 80 with a maximum tensile stress of 187.37 N/mm2 . Truss is selected made of carbon steel S30C with a maximum compress stress of 442.47 kg/cm2 and all of the working stresses are below the allowable stress limits, thus the device is safe to be used.Key words: lifting, Design, Hydraulic
Analisis Karakteristik Briket Daun Jati dan Daun Jambu Mete Muhamad Arjuna; Abd. Kadir; La Ode Ahmad Barata
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (368.814 KB) | DOI: 10.55679/enthalpy.v7i3.27121

Abstract

Energy is something abstract that is difficult to prove but can be felt and has the ability to do work (energy is the capability for doing work). The purpose of this study was to determine the characteristics of Teak Leaves and Cashew Leaves Briquettes with varied compositions. The research method used is to analyze the characteristics of the flame temperature and compressive strength. Characteristic analysis of flame temperature and compressive strength was carried out with 3 variations of composition composition (70 teak leaves: 20 guava leaves: 10 clay, 50 teak leaves: 40 guava leaves: 10 clay, 20 teak leaves: 70 guava leaves: 10 clay) . From the results obtained, briquettes with a composition of 70% cashew leaves and 20% teak leaves with 10% clay adhesive are a good composition compared to other compositions with a temperature value of 233oC and a compressive strength value of 0.06272 N/mm2.Keywords: Briquettes, teak leaves, and cashew leaves
Uji Pembakaran Biobriket Tongkol Jagung dan Sekam Padi Menggunakan Perekat Sagu Dedi Mardeni Suratin; La Ode Ahmad Barata; Aminur Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (618.837 KB) | DOI: 10.55679/enthalpy.v7i3.27122

Abstract

The main source of energy for humans is Human Resources which comes from carbon fossils. This energy has been deficient so it needs to be energy differentified. Biobriquettes are charcoal bars using soft materials that are processed into hard charcoal materials. The purpose of this study was to determine the composition of a good mixture (not easily destroyed) based on the compressive strength of the Corn Cob and Rice Husk biobrikets and to determine the flame temperature of the Corn Cob biobriket and Rice Husk. The method carried out in this study is the analysis of the flame temperature and compressive strength contained in the briquettes. The analysis carried out in this study was carried out with 5 variations in composition, namely ( corn cobs 25% : rice husks 75% : sago 15%, corn cobs 75% : rice husks 25% : sago 15%, corn cobs 50% : rice husks 50% : sago 15%, corn cobs 100% : rice husks 0% : sago 15%, and corn cobs 0% : rice husks 100% : sago 15%). From the results that have been obtained, briquettes that have good quality are found in corn cobs 25%: Rice husks 75%: sago 15% with a temperature value of 500 °C and a maximum load strength value of 159,060 with a compressive strength value of 1.0404624 N / mm2.Keywords: Corn cobs, rice husks, and flame temperature

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