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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 8 Documents
 1 
Search results for , issue "Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin" : 8 Documents clear
Analisa Mampu Redam Suara Komposit Polyester Berpenguat Serbuk Gergaji dan Fly Ash Haris, Muh. Jufri; Salimin, Salimin; Imran, Al Ichlas
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (275.399 KB) | DOI: 10.55679/enthalpy.v3i4.5318

Abstract

This damper material will raise awareness of the importance of reducing noise and the importance of utulizing waste products as a material that can be economically. This study aims to determine and amalyze the ability to dampen the sound of polyester composit with sawdust and fly ash mixture to the frequency of 1200 Hz, 1400 Hz and 1600 Hz. This eksperimental study was conducted with three different compositionvariations. The materials used are polyester resin, sawdust and fly ash. The data obtained is measured using a sound level meter. The result of this study showed that the material at a 70:20:10% volume fractionobtained the highest sound absorption coefficient value of 0,38248 dB with a frequency of 1600 Hz and for the lowest absorption coefficient value 0,11687 DB at volume fraction 60:30:10% with frequency 1200 Hz. The higher the value of sound absorption coefficient, the better the quality of the soundproofing material.Key word: Composite, resin polyester, sawdust, fly ash and NAC.
Analisa Perpindahan Panas Pada Alat Pengering Pisang Tipe Rak Kombinasi Tenaga Surya dan Biomassa Ambo Sakka; Lukas Kano Mangalla; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (192.84 KB) | DOI: 10.55679/enthalpy.v3i4.5282

Abstract

So far, most farmers have drained agricultural products by drying directly under the hot sun. The drying process by drying directly requires intensive labor, longer time and requires a large amount of land. The purpose of this study is to find out the heat transfer analysis that occurs in rack type dryers that utilize moving air flow into the device naturally and then the air is heated by utilizing the heat of solar radiation collected at solar collectors and also utilizing biomass energy used to accelerate drying process of the product in the drying chamber. The data obtained were taken by using Thermocouple CC type (Cooper Constanta), Solar Powermeter, Anemometer, Thermo-Hygrometer and Scales. The results of the study that the heat transfer analysis on the rack type dryer with the drying process using solar collectors as heat absorbers and biomass energy then combined. The results obtained for solar power efficiency is 55.852%, biomass energy efficiency of 58.127%, and combination efficiency of 69.935 %.Keywords: Dryer type rack, solar collector, biomass, drying variation, temperature, efficiency.
Perancangan dan Analisa Frame Sepeda Pengangkut Gabah Rachmad Mariudin; Yuspian Gunawan; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (206.554 KB) | DOI: 10.55679/enthalpy.v3i4.5319

Abstract

This study aims to determine the stress distribution on grain carriers. In this study frame construction was designed using autodesk inventor software and simulation using ansys software. Carbon stell material with a load of 175 kg is used as a frame material in this analysis. The results show that the maximum stress that occurs in the frame reaches 38,238 N/m2 from the simulation results while in manual calculations the voltage is reached 33,981 N/m.Keywords: Frames, Ansys software simulation, voltage distribution.
Perancangan dan Desain Alat Press Hidrolik Kapasitas Maksimal 10 Ton La Sarif; Sudarsono Sudarsono; Budiman Sudia
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (122.775 KB) | DOI: 10.55679/enthalpy.v3i4.5285

Abstract

Hydraulic press as a tool for molding material. This study aims to design and design tools with a maximum level of 10 tons and to determine the components and dimensions of the press. In this study the center uses the jack as the center of loading. For the size of this height 78 cm and width45 cm with bolt fasteners using clay steel material with 0.22 (%) C with tensile strength 42 (kg/mm2), shear stress 3 (kg / mm2), and the outer bolt diameter is 60 (mm) with a distance for the 5.5 (mm) M60 bolt crusher. As for the strength of the material from the components of the press tool has a permit voltage of 37 (kg / mm2), a bending moment of 750 x 103 (kg / mm) with a moment of inertia of 360 x 103 (mm4) and a voltage of 31.25 (kg / mm2). For governance factors 1.18 (kg/mm2).Keywords: Tool, hydraulic, design, safety factor
Analisa Kemampuan Meredam Suara Pada Batu Bata Komposit Berbahan Dasar Semen, Pasir, Faba (Fly Ash Bottom Ash) Riko Wahyuddin Kosar; Muhammad Hasbi; Aminur Aminur
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.024 KB) | DOI: 10.55679/enthalpy.v3i4.5322

Abstract

Noise is one of urban people everyday life challenge as many world societies have to encounter. Thus noise reduction material is highly required.This research aims to contain the suitable mixture of composite brick made of faba, cement, and sand for noise reduction furthermore this research also aim to understand and analyze composite brick made of faba (fly ash and bottom ash)in noise reduction towards frequency of 1200 Hz, 1300 Hz, 1400 Hz, 1500 Hz and 1600 Hz. This experiment developed through three variants of different composition which used faba, cement, and sand material. The experiment result exhibit that in the material of volume fraction 10:30:60% on specimen 1 obtained the highest coefficient value of absorptive sound 0.34104 dB with frequency of 1600 Hz and the lowest coefficient value of absorptive sound 0.14721 dB in volume fraction 20:30:50% with frequency of 1200 Hz, on specimen 5. The higher of absorptive sound coefficient value impacted to the more excellent quality of noise reduction material. Keywords: Cement, sand, faba, noise absorption coefficient.
Perencanaan dan Simulasi Poros Roda Traktor Tangan Misar Misar; Sudarsono Sudarsono; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (195.151 KB) | DOI: 10.55679/enthalpy.v3i4.5316

Abstract

This study aims to determine safe and good shaft planning, stress distribution. In this study it was designed using Autodesk Inventor software and simulation using software Ansys Workbench 18.1. The material used to plan the shaft is carbon steel for machine construction and cold steel rod steel for the shaft with the S55C symbol with a tensile strength of 647,46 N/mm2. Results shaft planning calculations showed that the plan 9.372 kwpower, torque or torque with a lap 136.73 rpm of 654.25 Nm, the permitted voltage obtained a value of 83 N/mm2. The shear stress that occurs on the shaft is 44.9 N/mm2, from the calculation results itcan be seen that the shear stress that occurs is smaller than the required voltage (????<????????), where is ???? = 44.9 N/mm2 and ????????=83N/mm2, so it can be concluded that the planned ossizeis quite safe. Bending stress shaft that occurs in manual calculation 56.25 N/mm2 and the simulation 61.291 N/mm2, this value is still below the value of the permit voltage of 83 N/mm2, then the shaft planning is quite safe. The maximum shaft shear stress that occurs in manual calculations is 52.98 N/mm2 and in the simulation of 34,624 N/mm2, this value is still below the value of the permit voltage of 83 N/mm2, the shaft planning is quite safe. Keywords: Planning shaft, safe and good shaft, simulation, ansys workbench,distribution voltage.
Analisa Perbedaan Ratio Sproket Pada Sistem Transmisi Rantai Paisal Paisal; Yuspian Gunawan; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (198.54 KB) | DOI: 10.55679/enthalpy.v3i4.5323

Abstract

The research aims to determine the difference ratio of chain transmission sprocket system, load and power that works on chain transmission. In this study the chain transmission system was designed using Autodesk inventor software which then analyzed the difference in sprocket ratio with calculations. Chain with number 40 ANSI standard as analysis data in this study. The results showed that the highest power of 6730,521 N and the load of 827,471 N were received in the C chain transmission system with a total of 34 front sprocket teeth and 17 rear sprocket teeth. Thehighest safety factor value of 21.833 in chain A transmission with the number of sprocket teeth 9 and 17.Keywords: Chain transmission design, ratio, load, safety factor
PERENCANAAN POROS MESIN PEMISAH KULIT DAN BIJI KACANG HIJAU Muh. Andri; Budiman Sudia; Samhuddin Samhuddin
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (230.185 KB) | DOI: 10.55679/enthalpy.v3i4.5317

Abstract

This research aims to determine the shaft planning that is safe and good, the moment of twisting or torque, the diameter of the shaft. In this study designed using Autodesk Inventor 2017. Software The material used toplan the shaft is carbon steel for the construction of the machine and rod steel which is cold machined for the shaft with the symbol S55C with a tensile strength of 66 kg/mm2.The results of shaft planning calculationsshow that the power plan is 7.165 kw, moment of torsion or torque with shaft rotation n1 (3600 rpm) of 1,938,530 kg. mm, and for shaft rotation n2 (960 rpm) of 7,269.4489 kg.mm, and the shear stress allowed is5.5 (kg/mm2), and the shaft diameter obtained a value of 28 mm, while the shear stress obtained a value of 1.688 kg/mm2. From the results above it can be seen that the value of shear stress that occurs is smaller than the shear stress value of the permit (???? < ????????) where ???????? = 5.5 kg/mm and the value of ???? = 1.688 kg/mm2, so that it can be concluded that the size The planned shaft is safe enough.Keywords: Shaft design, safe and good shaft, torque or torque moment, shaft diameter.

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