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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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Perancangan dan Analisa Frame Sepeda Pengangkut Gabah Mariudin, Rachmad; Gunawan, Yuspian; 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

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 Sarif, La; Sudarsono, Sudarsono; Sudia, Budiman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 3, No 4 (2018): Enthalpy: Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

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) Kosar, Riko Wahyuddin; Hasbi, Muhammad; 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

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

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; Gunawan, Yuspian; 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

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 Andri, Muh.; Sudia, Budiman; 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

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.

Perancangan Mesin Perajang Singkong Mustamin, Mustamin; Hasbi, Muhammad; Imran, Al Ichlas
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 1 (2019): Enthalpy-Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

The purpose of the study was to determine the shaft design, knowing the pulleys and belts to be used and to determine the design of the blade of the cassava chopper machine. The procedure in the design of cassava chopper by using autocad is to prepare the tools and materials to be used; Power planning by calculating the total moment of inertia, calculating the acceleration of the motor, calculating the speed of the rotation angle; Axle planning by calculating the torque moment, calculating the allowable shear stress, calculating the shaft diameter and calculating the shear stress received; Belt and Puli planning is calculating the linear velocity of the belt and calculating the length of the belt and the planning of the Blade which is calculating the compressive strength, calculating the shear strength and calculating each blade style then drawing a cassava chopper. Based on the results of the analysis and discussion in this study it can be concluded that the driving motor power in cassava delivery is 0.698 kW, the shear stress that occurs on the shaft is 1.648 N/mm2, the required belt length is 1513.409 mm with distance axle axis 634.689 mm and compressive strength on the slicing knife are 1.206 N with shear stress 0.0038 N/mm2.Keywords: Twisting moment, shear stress, power, drive motor, shaft, pulley, belt.

Analisis Peluang Penghematan Konsumsi Energi Pada Kantor Pertanahan Kota Kendari Hamisa, Hamisa Hamisa; Mangalla, Lukas Kano; Kadir, Abd
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 1 (2019): Enthalpy-Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

In the modern era at this time, almost all human beings in all corners of the world have been dependent on the existence of electrical energy or it can be said that almost all the activities of a human being always have a relationship with electricity. This experimental study uses 2 methods of approach, namely initial energy audits and detailed energy audits. The tools used in this, the level of activity of Kendari City Land Office employees. The results of this study indicate that the initial energy audit at the Kendari City Land Office was 186, 9834 kWh / m2 (for 1 year), this has not exceeded the ASEAN-USAID standard on an office which is 240 kWh / m2 year while a detailed energy audit, the kWh value read at the Kendari City Land Office is 34.903,125 kWh (for 1 year). The opportunity to save energy (PHE) in energy audit research is to use lighting that is in accordance with its designation, perform cleaning on each AC unit which includes cleaning the air filter, fan blades, fins, evaporator and output grid on the AC. The recommendation for PHE is to do cleaning every 3-4 months for each AC unit and optimize the use of cloth curtains for each room at the Kendari City Land Office.Keywords : Initial Energy Audit, Detailed Energy Audit, Energy Consumption Intensity.

Analisa Mampu Redam Suara Komposit Serat Sabut Kelapa Dengan Matriks Polyvinyl Acetate (Lem Fox) Said, Harman; Mangalla, Lukas Kano; Sudia, Budiman
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 1 (2019): Enthalpy-Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

This study aims to find out and analyze the ability of the sound attenuation of coco fiber composites with polyvinyl acetate (fox glue) matrix on various compositions. The composite material used is coconut fiber with polyvinyl acetate (Fox glue). The data obtained were tested using tube impedance along with speaker devices, amplifiers, power supplay, leptop / smartphone, oscilloscope, sound lever meter with input frequencies of 1000, 1500, 2000, and 2500 Hz. The results of the Noice Absorption Coefficient (NAC) value of the composite coir fiber test specimens with polyvinyl acetate matrix (Fox glue) have the highest sound absorption coefficient (α) 0.50788 at fiber volume fraction of 20%: 80% with a frequency of 2500 Hz. While for the lowest sound absorption results (α) 0.50121 with fiber volume fraction of 40%: 60% with a frequency of 1000 Hz. The results of all test specimens can be used as sound absorption material because it has a sound absorption coefficient > 0.5 and porous and fibrous. Keywords : Composite, Coconut Fiber, Polyvinyl Acetate (Fox Glue) And Noice Absorption Coeffisien

Analisa Sifat Mekanik Komposit Serat Tapis Kelapa Dipadukan Serbuk Tempurung Kelapa Matriks Resin Epoxy Merdana, Made; Salimin, Salimin; Kadir, Abd
Enthalpy : Jurnal Ilmiah Mahasiswa Teknik Mesin Vol 4, No 1 (2019): Enthalpy-Jurnal Ilmiah Mahasiswa Teknik Mesin
Publisher : Teknik Mesin Universitas Halu Oleo

This study aims to determine the tensile strength and bending of coconut fiber filter composites combined with coconut shell epoxy resin powder. The material used is epoxy resin, coconut filter fiber with 1 mm fiber length, coconut shell powder. The coconut filter fiber used was treated with NaOH for 1 hour. Thecomposition used is 60% Resin: 25% Fiber: 15% Coconut shell powder, 60% Resin: 20% Fiber: 20% Coconut mixed powder, 60% Resin: 15% Fiber: 25% Coconut shell powder. The procedure for making composites refers to the ASTM D 638-01 standard for tensile tests and ASTM D 709-02 for bending tests. The results showed that the highest tensile strength was in the variation of volume fraction of 60% Resin: 15% Fiber: 25% Coconut shell powder was 6.34209333 N / mm2, and in the variation of volume fraction 60% Resin: 25% Fiber: 15% shell powder coconut has the lowest tensile strength value which is4.18271666 N / mm2. while for bending testing the value of the greatest bending strength is found in variations of 60% Resin: 15% Fiber: 25% Coconut shell powder is 6.852063333 N/mm2 and the lowestbending strength value is in the volume fraction% Resin: 25% Fiber: 15% powder coconut shell which is 4,712313333 N/mm2.Keywords : Fiber Composites, Coconut Shell, Tensile Strength and Bending Strength.

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Yuspian Gunawan

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yuspian.gunawan_ft@uho.ac.id

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+6281392700119

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aminur@uho.ac.id

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

Location
Kota kendari,

Sulawesi tenggara

INDONESIA

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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

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

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