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Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin

ENTHALPY
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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 191 Documents

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Pengujian Karakteristik Pembakaran Bahan Bakar Minyak Pirolisis Plastik Dan Minyak Jelantah Sebagai Bahan Bakar Alternatif Iko, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The purpose of this study was to determine the effect of the ratio of used cooking oil on the combustion characteristics of polypropylene (pp) plastic pyrolysis fuel oil. This study used a mixture of used cooking oil and pyrolysis oil of 75%:25%, 50%:50%, and 25%:75%, respectively. The results of mixing the used cooking oil are burned using a combustion container in an open space with. The maximum temperature obtained from each mixture was 20 minutes for a mixture of 75%: 25% used cooking oil, a 50%:50% mixture, 42 minutes for a mixture of 25%:75%. is 34 minutes.Key Words: Used cooking oil, plastic pyroliysis oil.

Analisis Karakteristik Briket Daun Jati dan Daun Jambu Mete Arjuna, Muhamad; Kadir, Abd.; Barata, La Ode Ahmad
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 3 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

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

Analisis Sistem Perpipaan Pada Hidroponik Sistem Deep Flow Tehnique Fahri, Fadel Alfahri; Gunawan, Yuspian; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Hydroponics is water management that is used as a medium for plant growth, deep flow technique hydroponics is a hydroponic system that circulates water continuously in a closed flow circuit using a pump. DFT hydroponics. This research was carried out by paying attention to the piping system and drawing the installation of the piping system using the Inventor software and then testing. Data collection was carried out by analyzing the supply system, calculating the flow rate, determining the type of flow and performing a strength simulation on the DFT hydroponic rack using the Inventor software application. The research shows the flow rate is 1.43 L/minute and the pump flowrate is 10 L/minute so that the water supply efficiency is 0.143 L/minute (14%). The resulting Reynolds value is 1304.61 m2/s, so the flow that works is laminar flow. Based on the simulation results, the maximum stress on the DFT hydroponic rack is 1616 MPa while the load on the DFT hydroponic rack is 37.8426 MPa so it is safe to use.Keywords:Piping system, hydroponic deep flow tehnique

Rancang Bangun Pompa Hidram Untuk Kebutuhan Air Pada Daratan Tinggi Dengan Memanfaatkan Arus Aliran Air Sungai Suherman, Andi; Hasanudin, La; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i2.24894

In rural areas, water supply is needed for agricultural, livestock, and fishery activities. In this problem a pump with the right technology, efficiency, and economy is needed so that its management does not depend on fuel and electricity. As a solution to this problem is the use of a hydraulic ram pump. Hydram pumps are an alternative in distributing water from low places to high places. This study aims to design a hydraulic ram pump at Cemping Ground. In this study, the main system is a hydraulic ram pump (hdyram pump) which can drain water from a low place to a high place without using electricity. The flow capacity produced by this pump at a height of 5 meters is 0,000057 (m3/s) or 0,057 (liter/s), the flow rate produced by this tool is 0,00072 (m/s), the efficiency of the hydraulic ram pump produced is 75,83 %, it takes 58,26 minutes per day to meet the 200 L water requirement, for the stress that occurs in the pipe is 0,0554 N/mm2 and for the strain that occurs in the pipe is 0,0000185.Keywords: Alternative, Tool, Design, Pump, Hydraulic

Uji Pembakaran Biobriket Tongkol Jagung dan Sekam Padi Menggunakan Perekat Sagu Suratin, Dedi Mardeni; Barata, La Ode Ahmad; 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

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

Perancangan Alat Angkat (Dongkrat Bold) Elektrik Anwar, Muh. Syahrul; Sisworo, Raden Rinova; Imran, Al Ichlas
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 2 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The jack is one of the modern technologies that is used to facilitate work during the process of lifting heavy loads so that heavy loads will be easily lifted according to the desired needs. The purpose of this research is to know the designer of the electric lift (bold jack) and to know the designer of the gearbox/gear holder and the motor mount. This research method design design, calculate the load, calculate the torque and power transmission, . In this study, it produces 5880 joules of work with a force of 14700 N, has a dc motor with 400 watts and a rotational speed of 700 rpm with power transmission that occurs ivn some parts of the motor at 700 rpm, reducer at 480 rpm, sprocket 345.6 rpm and what happens to the jack is 57.6 rpm with a chain speed of 1.645 m/s and the allowable shear stress is 0.00019 Mp and the equivalent load is 113.37 or 5142 kgf.Key words : Formulation, clove oil. engine performance

Perancangan Alat Treker Piston Kaliper Rem Mobil Dengan Sistem Hidrolik Ariambaryana, I Putu Ade; Gunawan, Yuspian; Sisworo, Raden Rinova
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28449

The hydraulic piston tracker is a tool used to press the car's caliper pistons when changing the disc pad. This study aims to design and design a piston caliper treker tool with a maximum strength of 50Kg and to determine the components and dimensions used in this tool. In this study, the main system is hydraulic which converts the pressure to be greater. The pressure produced by this tool is 50Kg or 490.5 N using only the force of the hand of 8.05 N. For the size of this tool it has an overall length of 27 cm, a retaining width of 11.5 cm, a lever length of 20 cm and a hydraulic tube diameter. 3 cm. main material for hydraulic cylinder chrome steel s30c 48 (Kg/mm2), low carbon steel plate (ST42) 36 (Kg/mm2), bolts, handles and levers Low carbon steel (ST42) 36 (Kg/mm2).Key words : Tool, Treker, design, hydraulic

Analisa Kekuatan Mekanik Sambungan Las Menggunakan Pola Ayunan Melingkar Dan Zig-Zag Pada Baja Karbon Sedang Irwan, Irwan; Endriatno, Nanang; Hasanudin, La
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28405

Welding is one of the metal joining techniques by melting some of the parent metal and filler metal which is currently widely used with different methods and movements of welding electrodes. These methods aim to obtain flat and smooth welds and at the same time become the impetus for the compilers to conduct research entitled "analysis of the mechanical strength of welded joints using circular and zig-zag swing patterns on medium carbon steel" with the aim of knowing the effect of welding patterns on hardness test on medium carbon steel material and the effect of microstructure welding pattern on medium carbon steel material. This research was conducted in August 2020, at the Mechanical Engineering Materials and Technology Laboratory, Department of Mechanical Engineering, Faculty of Engineering, Halu Oleo University Kendari. The tools used are welding machines, grinding machines, welding goggles, pliers, masks and gloves while the materials are 0.5 cm carbon steel plate, welding electrodes, grinding wheels. The results of the first research are that for welding using a circular electrode movement pattern which shows a softer or more ductile result, while for a harder or brittle result, it is shown in the zigzag electrode movement welding process and secondly that the circular electrode movement in the welding process has an impact on the microstructure. in the HAZ area which is getting darker because the structure formed is dominated by pearlite, while in welding the zigzag electrode movement has an impact on the HAZ area which is getting brighter because it is dominated by the bainite structureKeywords: Circular Welding Pattern, Mechanical Strength, Medium Carbon Steel, Zigzag Welding Pattern,

Analisis Kekuatan Tarik Material Komposit Berpenguat Ampas Pengolahan Sagu Saleh, La Ode Muhamad; Samhuddin, Samhuddin; Aksar, Prinob
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28335

In the industrial world, the development of material technology is growing rapidly. Various kinds of materials have been used and further research is being carried out to obtain the right materials, one of which is composite materials. The purpose of this study was to determine the effect of the tensile strength of the composite material reinforced with sago pulp. In this study, the manufacture of composites using the hand lay up method. then the fiber is given alkaline treatment by soaking in a solution of NaOH (Sodium Hydroxide) with a concentration of 5% for 1 hour, 2 hours and without treatment. From the results obtained, immersion for 1 hour has the highest tensile stress of 10,456 N/mm², followed by immersion for 2 hours of tensile stress of 7.189 N/mm². While without treatment has the lowest tensile stress of 4.955 N/mm². This shows that the treatment will affect the tensile stress.Kata kunci: Sago drgs,tensile strength,alkali

Pengaruh Besar Sudut Kampuh V Terhadap Von Mises Stress Material Pada Proses Pengelasan Berbasis Metode Elemen Hingga Zulvikar, Zulvikar; Kadir, Abd; Samhuddin, Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 7, No 4 (2022): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/enthalpy.v7i4.28357

Welding is one of the joining technologies that has experienced significant developments from time to time, both from the type of welding equipment to the joining method used. This study aims to determine the effect of the large angle of V on Von Mises stress material in the welding process based on the finite element method. The tool used to model Equivalent von misses stress and Equivalent Elastic Strain with the help of finite element method software, the material used is AISI 4130. From the simulation results, it shows that the largest Equivalent von misses stress is found at the 45° V seam angle, which is 1.7251x108 Pa, while the lowest equivalent von misses stress is found at the angle of V 60°, which is 1.7162x108 Pa. As for the Equivalent Elastic Strain, the largest is found at the large V 30° joint angle, which is 0.00129 m or 1.29 mm, while the lowest strain value is found at the 45° joint angle of 0.0011564 m or 1.15 mm. Keywords: Equivalent von misses stress, Equivalent elastic Strain, Large angle of V, Finite element method

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Jl. H.E.A. Mokodompit Anduonohu

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Kota kendari,

Sulawesi tenggara

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Yuspian Gunawan

Contact Email yuspian.gunawan_ft@uho.ac.id

Phone +6281392700119

Journal Mail Official aminur@uho.ac.id

Editorial Address Jl. H.E.A. Mokodompit Anduonohu

Location Kota kendari, Sulawesi tenggara INDONESIA

Abstract

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Contact Name
Yuspian Gunawan

Contact Email
yuspian.gunawan_ft@uho.ac.id

Phone
+6281392700119

Journal Mail Official
aminur@uho.ac.id

Editorial Address
Jl. H.E.A. Mokodompit Anduonohu

Location
Kota kendari,

Sulawesi tenggara

INDONESIA